CA2099241A1 - Feeding apparatus and method - Google Patents
Feeding apparatus and methodInfo
- Publication number
- CA2099241A1 CA2099241A1 CA002099241A CA2099241A CA2099241A1 CA 2099241 A1 CA2099241 A1 CA 2099241A1 CA 002099241 A CA002099241 A CA 002099241A CA 2099241 A CA2099241 A CA 2099241A CA 2099241 A1 CA2099241 A1 CA 2099241A1
- Authority
- CA
- Canada
- Prior art keywords
- feed
- bin
- discharge conduit
- conduit
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 10
- 238000004891 communication Methods 0.000 claims abstract description 7
- 244000144972 livestock Species 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000008188 pellet Substances 0.000 description 12
- 241000251468 Actinopterygii Species 0.000 description 11
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 240000004543 Vicia ervilia Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K5/00—Feeding devices for stock or game ; Feeding wagons; Feeding stacks
- A01K5/02—Automatic devices
- A01K5/0291—Automatic devices with timing mechanisms, e.g. pet feeders
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/80—Feeding devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Birds (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A feeding apparatus for delivering feed at timed intervals comprising a bin for storing feed having an outlet and a discharge conduit in communication with the outlet for storing a pre-determined amount of feed. A
pressurized gas system in communication with the discharge conduit acts to discharge feed from the conduit at timed intervals. A timing system is also provided for controlling the interval between successive discharges of the feed, the time between discharges being used to deliver feed to the discharge conduit through the bin outlet.
A feeding apparatus for delivering feed at timed intervals comprising a bin for storing feed having an outlet and a discharge conduit in communication with the outlet for storing a pre-determined amount of feed. A
pressurized gas system in communication with the discharge conduit acts to discharge feed from the conduit at timed intervals. A timing system is also provided for controlling the interval between successive discharges of the feed, the time between discharges being used to deliver feed to the discharge conduit through the bin outlet.
Description
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FEEDING APPARATUS AND METHOD
This invention relates to a feeding apparatus and method for livestock, and more particularly, relates to a fish feeding apparatus and method that uses a pressurized air system to control broadcasting of predetermined amounts of fish feed pellets at regular intervals.
- There are numerous examples of automatic feeding apparatus that have been-developed for unattended feeding of livestock such as poultry, cattle or fish. Examples of previous feeding equipment is disclosed in the following Patents:
Swedish Patent 309,338 United States Patent 3,528,588 to Moore United States Patent 4,372,252 to Lowry, Jr.
United States Patent 4,984,536 to Powell et al.
United States Patent 5,076,215 to Yang; and United States Patent 5,150,666 to Momont et al.
These prior art feeders generally rely on an electric fan or blower which is operating continuously to discharge feed from an essentially horizontal discharge tube over a feeding area. A separate computer control or electrical timer system is used to time and co-ordinate delivery of feed into the discharge tube for immediate dispersal by the wind force of the fan or blower.
In the marine environment of a fish farm, feeders that rely on electrical power for their operation are at a disadvantage. Fish farms generally comprise a series of floating pens housing fish that are connected by a walkway for workers to access each of the pens. Each pen is provided with its own feeding apparatus and safety considerations make it dangerous to string 120 volt electrical wires to each feeding apparatus in the wet, corrosive saltwater environment. Many fish farms rely on ., ... . , ,. .. .. . . .. . .. . ~ .. . . . .. . . .
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FEEDING APPARATUS AND METHOD
This invention relates to a feeding apparatus and method for livestock, and more particularly, relates to a fish feeding apparatus and method that uses a pressurized air system to control broadcasting of predetermined amounts of fish feed pellets at regular intervals.
- There are numerous examples of automatic feeding apparatus that have been-developed for unattended feeding of livestock such as poultry, cattle or fish. Examples of previous feeding equipment is disclosed in the following Patents:
Swedish Patent 309,338 United States Patent 3,528,588 to Moore United States Patent 4,372,252 to Lowry, Jr.
United States Patent 4,984,536 to Powell et al.
United States Patent 5,076,215 to Yang; and United States Patent 5,150,666 to Momont et al.
These prior art feeders generally rely on an electric fan or blower which is operating continuously to discharge feed from an essentially horizontal discharge tube over a feeding area. A separate computer control or electrical timer system is used to time and co-ordinate delivery of feed into the discharge tube for immediate dispersal by the wind force of the fan or blower.
In the marine environment of a fish farm, feeders that rely on electrical power for their operation are at a disadvantage. Fish farms generally comprise a series of floating pens housing fish that are connected by a walkway for workers to access each of the pens. Each pen is provided with its own feeding apparatus and safety considerations make it dangerous to string 120 volt electrical wires to each feeding apparatus in the wet, corrosive saltwater environment. Many fish farms rely on ., ... . , ,. .. .. . . .. . .. . ~ .. . . . .. . . .
~9~
2 -a 12 volt battery system to operate feeding apparatus but such an arrangement is often unreliable.
Prior art feeders that use a source of compressed air to discharge feed are also known. Systems employing 5 such feeders generally use an airline from a central ~-compressor to distribute compressed air to each feeder.
These feeders still rely on a separate control system, either pneumatic or electrical, for co-ordinating the time of food distribution and the quantity of food distribution.
The present invention provides a feeding apparatus that addresses the problems of the prior art.
The pre~ent invention provides a feeding apparatus for delivering feed at timed intervals comprising:
bin means for storing feed having an outlet;
a discharge conduit in communication with the outlet for storing a pre-determined amount of feed;
expulsion means in communication with the discharge conduit for discharging feed from the conduit at timed intervals; and :~
tim;ng means for controlling the interval between successive discharges of the feed, the time between discharges being used to deliver feed to the discharge conduit through the bin outlet.
The pre~ent invention also provides a method of delivering feed at timed intervals to livestock comprising the steps of~
1) storing feed in a bin;
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Prior art feeders that use a source of compressed air to discharge feed are also known. Systems employing 5 such feeders generally use an airline from a central ~-compressor to distribute compressed air to each feeder.
These feeders still rely on a separate control system, either pneumatic or electrical, for co-ordinating the time of food distribution and the quantity of food distribution.
The present invention provides a feeding apparatus that addresses the problems of the prior art.
The pre~ent invention provides a feeding apparatus for delivering feed at timed intervals comprising:
bin means for storing feed having an outlet;
a discharge conduit in communication with the outlet for storing a pre-determined amount of feed;
expulsion means in communication with the discharge conduit for discharging feed from the conduit at timed intervals; and :~
tim;ng means for controlling the interval between successive discharges of the feed, the time between discharges being used to deliver feed to the discharge conduit through the bin outlet.
The pre~ent invention also provides a method of delivering feed at timed intervals to livestock comprising the steps of~
1) storing feed in a bin;
~ :
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- 3 -2) delivering feed continuously from the bin to a diæcharge conduit for storing a pre-determined amount of feed;
3) di~charging the feed stored in the di~charge conduit for dispersal to livestock at timed intervals sufficient for the pre-determined amount of feed to be delivered to the discharge conduit between discharges.
The apparatus and method of the present invention delivers pre-measured batches of feed at regular intervals. The discharge and timing operations of the apparatus are integrated in a single system thereby avoiding the dual timing and power systems of the prior art.
The apparatus of the present invention can also incorporate an automatic shutoff system for stopping operation of the feeding apparatus after a pre-determined amount of feed has been delivered.
The apparatus of the present invention provides a compact, sturdy and reliable feeding apparatus that provides unattended feeding of livestock pre-selected quantities of feed at pre-selected intervals.
Aspects of the present invention are illustrated, merely by way of example, in the accompanying drawings, in which:
Figure 1 i~ a rear elevation view of a preferred embodiment of the feeding apparatus of the present invention;
Figure 2 is a side elevation view of the feeding apparatus;
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. . .
2 ~ 1 Figure 3 i9 a detail section view of the discharge conduit including a movable receptacle; ~ :
Figure 4 is a detail section view of an alternative movable receptacle; ~ :
Figure 5 is a detail section view of the timing -:-piston and chamber;
"
Figure 6 is a detail view of the scale system for automatically stopping operation of the feeding apparatus after a pre-determined amount of feed has been delivered;
Figure 7 is a section view through the scale system taken along line 7-7 of Figure 6;
Figure 8 i8 an exploded view of a mounting bracket for connecting the feed bin to a support framework;
Figure 9 is a plan view of a typical fish farm layout using the feeding apparatus of the present invention;
Figure 10 is a schematic diagram of the control system for the feeding apparatus of the present invention showing the interrelationship of the scale system, the compressed air supply system and the air supply flow meter.
Figure 11 is an elevation view of an alternative embodiment of the feeding apparatu~ that u0es a removable feed storage bln;
Figure 12 is a side elevation view of a removable bin showing hinged flaps in the open position; and , ., ~
- 5 - ~9~
Figure 13 i8 a detail view of a removable bin with broken away section to show hinged flaps in the closed position.
Referring to Figures 1 and 2, there i8 ~hown a preferred embodiment of the feeding apparatus 2 of the present invention for delivering feed at timed intervals.
The apparatu~ includes bin means in the form of bin 4 for storing feed to be distributed. Feed is preferably in pellet form. Bin 4 has a lower outlet 6 in communication with a discharge conduit 8 for storing a pre-determined amount of feed. Expulsion means in the form of eompressed air reservoir 10 communieates with diseharge conduit 8 for discharging feed from the conduit at timed intervals.
Bin 4 preferably comprises an aluminium enclosure having a hinged eover 5 for access to the bin interior, side walls 7 and a funnel-shaped base 9 to direct feed to diseharge eonduit 8 via bin outlet 6. A rigid tubular support frame 11 supports bin 4 and attaehed diseharge eonduit 8 above the ground 13. Bin 4 iB attaehed to support frame 11 via mounting bracket~ 15.
As best shown in Figure 3 and 4, di~charge conduit 8 eomprises a substantially eylindrieal tube having a lower closed end 12 and an upper open end 14. The tube is conneeted to outlet 6 of bin 4 at an angle with respect to the horizontal to define a reservoir for receiving feed from bin 4. Bin outlet 6 communicates with diseharge eonduit 8 at a point intermediate the ends of the eonduit and the compressed alr reservoir 10 eommunieates with the conduit ad~acent closed end 12 through passage 16. Feed 18 within bin 4 is free to move by gravity through outlet 6 for temporary storage within diseharge eonduit 8.
- 6 - ~ 2~
The feed stored in conduit 8 represents the amount of feed that will be discharged by the feeding apparatus at each interval. Discharge conduit 8 is provided with a movable insert 20 that permits the amount of feed that the discharge conduit can hold to be adjusted. Movable insert 20 comprises a cylinder section that is open toward inlet 6 and upper open end 14 of the conduit.
There i9 a stop surface 22 adjacent the lower end of the discharge conduit to prevent passage of feed 18. In Figure 3, stop surface 22 comprises at least one perforated surface. As illustrated in Figure 4, stop surface 22 can also be formed with a one way valve.
Slot 23 is formed in the underside of conduit 8 to accommodate threaded shaft 25 extending downwardly from insert 20. A wing nut 26 is tightenable onto shaft 25 protruding from slot 23 to permit positioning of the insert within conduit 8 to vary the amount of feed storable in the conduit. As shown in Figure 3, feed pellets 18 fill conduit 8 by gravity to an extent lim;ted by the position of insert 20 and the flow of pellets stops automatically once the conduit is filled to the pre-selected amount. In prototype testing, insert 20 could be positioned to store a maximum of 4-5 pounds of feed for dispersal at one time.
At timed intervals, compressed air is released from reservoir 10 to expel the feed stored in conduit 8. The compressed air travels through the perforated surface or the one way valve of stop surface 22 to blow the stored feed out of conduit 8 through open end 14. Dispersing means in the form of angled plate 28 are provided at open end 14 for creating an even dispersal pattern of discharged feed pellets. When compressed air is discharged through conduit 8 any excess air over that necessary to expel the feed in the conduit will tend ... . . . .. ... . .. . . . . . .
., . ...... . ~ ,, :, ~, : . ,, .
,. , bubble upwardly through outlet 6 and feed pellets 18 in bin 4 to create an automatic ~afety valve.
Compressed air reservoir 10 ~erves as a source of compressed air to expel feed from conduit 8 and also plays a role in establishing the time interval between successive discharges of feed pellet~ 18. The time between discharges is used to deliver feed to the discharge conduit through the bin outlet 6. As best shown in Figures 1 and 5, reservoir 10 iB mounted to valve unit 29 which in turn is mounted below bin 4 by bracket 30. Reservoir 10 and valve unit 29 together act as the timing means for controlling the interval between feed discharges. Reservoir 10 collects and stores air under pressure supplied by remote compressor 34 (Figure 9) via gas line 32. Vslve unit 29 controls the flow of compreased air between reservoir 10 and discharge conduit 8. Valve unit 29 is shown in section in Figure 5 and is intended to ~tore gas under pressure in reservoir 10 until a pre-determined pressure is reached. The time it takes for the pre-determined pressure to be reached establishes the time interval between feed discharges.
Once the pre-determined pressure is reached, valve unit 29 releases the pressurized air to discharge conduit 8.
Valve unit 29 comprises a sealed chamber 35 communicating reservoir 10 with the discharge conduit 8 and a pi~ton 36 movable within the chamber between a sealed position, shown in solid lines in Figure 5, in which the piston seals the reservoir and an open position, ~hown in dashed lines, in which the piston is dl~plaoed within tho ahamber to permit gas under pressure to enter the discharqe conduit from the reservoir.
Discharged conduit is connected to the valve unit via passage 16. Adjustable biasing means in the form of spring 37 are provided for biasing piston 36 toward the sealed position against the force of the pressurized gas ,,,.. :: ~ ~ . - ,; , , ................... . ~ " , .
. : : . :
in reservoir 10. Spring 37 is compressed between the end of chamber 35 and piston 36. The compression of spring 37 is adjustable, via threaded screw 38 extending from the end of chamber 35, to select a pre-determined pressure at which piston 36 will move from the sealed position to the open position. If compressed air is fed to re~ervoir 10 at a fixed rate, adjusting the compression of spring 37 permits adjustment of the time between feed discharges. In addition, adjusting the compression of spring 37 permits adjustment of the distance the feed pellets are discharged. In general, the greater the release pressure within reservoir 10 as set by valve unit 29, the greater the distance the feed pellets will be thrown. The dimensions of the feed spread pattern also depend on the the pellet size, the foed type and the amount of feed per discharge.
Preferably, piston 36 and chamber 35 are shaped with - a tapered end adjacent reservoir 10. This ensures that piston 36 retreats rapidly from the sealed position to the open position when the pre-determined pressure is reached in re~ervoir 10 for a smooth and consistent flow of compressed air through discharge conduit 8.
Figure 9 illustrates a typical layout for a fish farm using the feeding apparatus of the present invention. A series of fish pens 40 are formed by underwater nets suspended beneath a system of walkways 42. A feeding apparatus 2 is positioned beside each fish pen 40 along a central aisle. Alternative feeder location~ are shown at 43 in dashed lines. A sound ln~ulated compres~or room 45 i~ remotely located on a barge 46. A ga~/propane driven air compressor 34 provides air under pressure to gas line 32 via a surge tank 47. A secondary surge tank 48 is located at the end of gas line 32. Each feeding apparatus 2 is connected to gas line 32. The fish pen in the lower right hand corner .
... ., , : . :. ~
9 ~
of Figure 9 shows a typical spread pattern 50 for feed pellets that have been expelled from discharge conduit 8.
Figures 6-8 illustrate means for automatically stopping operation of the feeding apparatus after a pre-determined amount of feed has been delivered that can beused with the feeding apparatus of the present invention.
As best shown in Figure 6, the means for automatically stopping operation of the feeding apparatus comprises a scale system 55 associated with support framework 11 for monitoring the weight of bin 4 and a control switch 56 for shutting off the flow of compressed air to the feeding apparatus. Control switch 56 is operated by elongate scale member 57 of the scale system. Scale member 57 is rigidly attached to an end of flexion shaft 58. Shaft 58 is lo¢ated by mutually perpendicular arms 60 and 62 extending from support framework 11. The weight of bin 4 is transmitted to one side of flexion shaft 58 by arm 59 extending from the rear side wall of bin 4. A bolt 63 extends horizontally through arm 60, shaft 58 and arm 59 to secure the various parts together.
A bolt 64 extends vertically through arm 62 and shaft 58 to secure the two parts together.
Mass 65 is movable along elongate scale member 57.
Therefore, the weight of bin 4 and mass 65 are supported on opposite sides of flexion shaft 58 such that the weight of bin 4 exerts a torque in a clockwise direction about the flexion shaft as viewed in Figure 6. Mass 65 exerts an opposite counterclockwise torgue about the flexion shaft. Movement of mass 65 along scale member 57 to a eet poeition eetabliehee a torque about the flexion shaft. Initially, bin 4 ie suffiaiently heavy to overcome the torque of mass 65 and exert a clockwise torque on shaft 58 causing scale member 57 to move upwardly to toggle switch 56 into a position that delivers compressed air to the feeding apparatus. A8 feed is discharged during normal operation bin 4 will get lighter. When bin 4 reaches a weight that is insufficient to offset the torque of mass 65, the scale member 57 will flex about the flexion shaft in the direction of the counterclockwise torgue exerted by the mass to cause the elongate scale member to engage and toggle switch 56 into a position that shuts off compressed air.
Scale member 57 can be calibrated with markings that ;
indicate various amounts of feed. ~y moving mass 65 to a balance position to establish a starting weight and then moving the mass to a mark indicating a lower stop weight, an operator can set the feeding apparatus of the present invention to ~hut off automatically once an amount of feed equal to the difference between the start and end weights ha~ been delivered.
As best shown in Figure 8, bin 4 can be partially supported by flexible mounting brackets 69 extending between the bin and support framework 11. As long as brackets 69 are sufficiently flexible to permit movement of bin 4 about flexion shaft 58 and scale member 57 has been calibrated appropriately to account for the bin weight ~upported by the brackets, the automatic shut off ~y~tem of the pre~ent invention will function. In prototype te~ting, the automatic shutoff system was capable of delivering feed quantities between 5-200 kg.
Figure 10 i~ a schematic diagram indicating the operation of the automatic ~hutoff ~y~tem. Scale ~ystem 55 compare~ the opposite torque~ exerted by bin 4 and mas~ 65 about flexion ~haft 58. Compres~ed air fed through line 32 by compressor 34 is cut off at switch 56 when the torque exerted by mass 65 overcomes the torque exerted by the weight of bin 4.
.. .., ,. , , : .. ...
.: ! ,, " "
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A flow meter 67 and valve 68 are provided in line 32 to control the flow of compres~ed air to a feeding apparatu~ ~ufficient to accommodate a minimum de~ired time interval between di~charges of feed. Fine adjustment of the time interval can be made at valve unit 29 using spring adjustment screw 38 (Figure 5). Flow meter 67 can be calibrated in terms of minimum time intervals between di6charges - the greater the flow of compressed air, the smaller the time interval possible between successive discharges of feed. Valve 68 can also be used to adjust the time between feed discharges when i8 necessary to adjust the distance of feed spread by manipulating valve unit 29.
Figures 11-13 illustrate an alternative embodiment of the present invention that employs a removable bin unlt 70. Bin unit 70 can be filled with feed pellets at a remote location and transported to the feeding apparatus. In order to accommodate bin unit 70, the feeding apparatus of the previous embodiment is modified to provide a funnel-shaped base 9 and a backing plate 72 adapted to receive bin unit 70. Releasable attachme~t means in the form of hooks 73, for example, are used to lock bin unit 70 to base 9.
Removable bin unit 70 is formed with triangular hinged flaps 75 ~Figure 12) that permit the base of the bin unit to be opened to communicate the bin contents with base 9 when the bin is in place on the base. In the illustrated embodiment, the four triangular flaps are plvotable between a closed overlapping position to seal bln 70 (Figure 13) and an open position to release the contents of the bin. Locking means in the form of chain 76 extending between the flaps and a brace member 77 can be used to hold the flaps in the closed position.
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Although the present invention has been described in some detail by way of example for purposes of clarity and understanding, it will be apparent that certain changes and modifications may be practised within the scope of the appended claims.
....... : , , ~ , j ,.
. . . :. . .. ,, ~: .
3) di~charging the feed stored in the di~charge conduit for dispersal to livestock at timed intervals sufficient for the pre-determined amount of feed to be delivered to the discharge conduit between discharges.
The apparatus and method of the present invention delivers pre-measured batches of feed at regular intervals. The discharge and timing operations of the apparatus are integrated in a single system thereby avoiding the dual timing and power systems of the prior art.
The apparatus of the present invention can also incorporate an automatic shutoff system for stopping operation of the feeding apparatus after a pre-determined amount of feed has been delivered.
The apparatus of the present invention provides a compact, sturdy and reliable feeding apparatus that provides unattended feeding of livestock pre-selected quantities of feed at pre-selected intervals.
Aspects of the present invention are illustrated, merely by way of example, in the accompanying drawings, in which:
Figure 1 i~ a rear elevation view of a preferred embodiment of the feeding apparatus of the present invention;
Figure 2 is a side elevation view of the feeding apparatus;
- : : ~
. . .
2 ~ 1 Figure 3 i9 a detail section view of the discharge conduit including a movable receptacle; ~ :
Figure 4 is a detail section view of an alternative movable receptacle; ~ :
Figure 5 is a detail section view of the timing -:-piston and chamber;
"
Figure 6 is a detail view of the scale system for automatically stopping operation of the feeding apparatus after a pre-determined amount of feed has been delivered;
Figure 7 is a section view through the scale system taken along line 7-7 of Figure 6;
Figure 8 i8 an exploded view of a mounting bracket for connecting the feed bin to a support framework;
Figure 9 is a plan view of a typical fish farm layout using the feeding apparatus of the present invention;
Figure 10 is a schematic diagram of the control system for the feeding apparatus of the present invention showing the interrelationship of the scale system, the compressed air supply system and the air supply flow meter.
Figure 11 is an elevation view of an alternative embodiment of the feeding apparatu~ that u0es a removable feed storage bln;
Figure 12 is a side elevation view of a removable bin showing hinged flaps in the open position; and , ., ~
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Figure 13 i8 a detail view of a removable bin with broken away section to show hinged flaps in the closed position.
Referring to Figures 1 and 2, there i8 ~hown a preferred embodiment of the feeding apparatus 2 of the present invention for delivering feed at timed intervals.
The apparatu~ includes bin means in the form of bin 4 for storing feed to be distributed. Feed is preferably in pellet form. Bin 4 has a lower outlet 6 in communication with a discharge conduit 8 for storing a pre-determined amount of feed. Expulsion means in the form of eompressed air reservoir 10 communieates with diseharge conduit 8 for discharging feed from the conduit at timed intervals.
Bin 4 preferably comprises an aluminium enclosure having a hinged eover 5 for access to the bin interior, side walls 7 and a funnel-shaped base 9 to direct feed to diseharge eonduit 8 via bin outlet 6. A rigid tubular support frame 11 supports bin 4 and attaehed diseharge eonduit 8 above the ground 13. Bin 4 iB attaehed to support frame 11 via mounting bracket~ 15.
As best shown in Figure 3 and 4, di~charge conduit 8 eomprises a substantially eylindrieal tube having a lower closed end 12 and an upper open end 14. The tube is conneeted to outlet 6 of bin 4 at an angle with respect to the horizontal to define a reservoir for receiving feed from bin 4. Bin outlet 6 communicates with diseharge eonduit 8 at a point intermediate the ends of the eonduit and the compressed alr reservoir 10 eommunieates with the conduit ad~acent closed end 12 through passage 16. Feed 18 within bin 4 is free to move by gravity through outlet 6 for temporary storage within diseharge eonduit 8.
- 6 - ~ 2~
The feed stored in conduit 8 represents the amount of feed that will be discharged by the feeding apparatus at each interval. Discharge conduit 8 is provided with a movable insert 20 that permits the amount of feed that the discharge conduit can hold to be adjusted. Movable insert 20 comprises a cylinder section that is open toward inlet 6 and upper open end 14 of the conduit.
There i9 a stop surface 22 adjacent the lower end of the discharge conduit to prevent passage of feed 18. In Figure 3, stop surface 22 comprises at least one perforated surface. As illustrated in Figure 4, stop surface 22 can also be formed with a one way valve.
Slot 23 is formed in the underside of conduit 8 to accommodate threaded shaft 25 extending downwardly from insert 20. A wing nut 26 is tightenable onto shaft 25 protruding from slot 23 to permit positioning of the insert within conduit 8 to vary the amount of feed storable in the conduit. As shown in Figure 3, feed pellets 18 fill conduit 8 by gravity to an extent lim;ted by the position of insert 20 and the flow of pellets stops automatically once the conduit is filled to the pre-selected amount. In prototype testing, insert 20 could be positioned to store a maximum of 4-5 pounds of feed for dispersal at one time.
At timed intervals, compressed air is released from reservoir 10 to expel the feed stored in conduit 8. The compressed air travels through the perforated surface or the one way valve of stop surface 22 to blow the stored feed out of conduit 8 through open end 14. Dispersing means in the form of angled plate 28 are provided at open end 14 for creating an even dispersal pattern of discharged feed pellets. When compressed air is discharged through conduit 8 any excess air over that necessary to expel the feed in the conduit will tend ... . . . .. ... . .. . . . . . .
., . ...... . ~ ,, :, ~, : . ,, .
,. , bubble upwardly through outlet 6 and feed pellets 18 in bin 4 to create an automatic ~afety valve.
Compressed air reservoir 10 ~erves as a source of compressed air to expel feed from conduit 8 and also plays a role in establishing the time interval between successive discharges of feed pellet~ 18. The time between discharges is used to deliver feed to the discharge conduit through the bin outlet 6. As best shown in Figures 1 and 5, reservoir 10 iB mounted to valve unit 29 which in turn is mounted below bin 4 by bracket 30. Reservoir 10 and valve unit 29 together act as the timing means for controlling the interval between feed discharges. Reservoir 10 collects and stores air under pressure supplied by remote compressor 34 (Figure 9) via gas line 32. Vslve unit 29 controls the flow of compreased air between reservoir 10 and discharge conduit 8. Valve unit 29 is shown in section in Figure 5 and is intended to ~tore gas under pressure in reservoir 10 until a pre-determined pressure is reached. The time it takes for the pre-determined pressure to be reached establishes the time interval between feed discharges.
Once the pre-determined pressure is reached, valve unit 29 releases the pressurized air to discharge conduit 8.
Valve unit 29 comprises a sealed chamber 35 communicating reservoir 10 with the discharge conduit 8 and a pi~ton 36 movable within the chamber between a sealed position, shown in solid lines in Figure 5, in which the piston seals the reservoir and an open position, ~hown in dashed lines, in which the piston is dl~plaoed within tho ahamber to permit gas under pressure to enter the discharqe conduit from the reservoir.
Discharged conduit is connected to the valve unit via passage 16. Adjustable biasing means in the form of spring 37 are provided for biasing piston 36 toward the sealed position against the force of the pressurized gas ,,,.. :: ~ ~ . - ,; , , ................... . ~ " , .
. : : . :
in reservoir 10. Spring 37 is compressed between the end of chamber 35 and piston 36. The compression of spring 37 is adjustable, via threaded screw 38 extending from the end of chamber 35, to select a pre-determined pressure at which piston 36 will move from the sealed position to the open position. If compressed air is fed to re~ervoir 10 at a fixed rate, adjusting the compression of spring 37 permits adjustment of the time between feed discharges. In addition, adjusting the compression of spring 37 permits adjustment of the distance the feed pellets are discharged. In general, the greater the release pressure within reservoir 10 as set by valve unit 29, the greater the distance the feed pellets will be thrown. The dimensions of the feed spread pattern also depend on the the pellet size, the foed type and the amount of feed per discharge.
Preferably, piston 36 and chamber 35 are shaped with - a tapered end adjacent reservoir 10. This ensures that piston 36 retreats rapidly from the sealed position to the open position when the pre-determined pressure is reached in re~ervoir 10 for a smooth and consistent flow of compressed air through discharge conduit 8.
Figure 9 illustrates a typical layout for a fish farm using the feeding apparatus of the present invention. A series of fish pens 40 are formed by underwater nets suspended beneath a system of walkways 42. A feeding apparatus 2 is positioned beside each fish pen 40 along a central aisle. Alternative feeder location~ are shown at 43 in dashed lines. A sound ln~ulated compres~or room 45 i~ remotely located on a barge 46. A ga~/propane driven air compressor 34 provides air under pressure to gas line 32 via a surge tank 47. A secondary surge tank 48 is located at the end of gas line 32. Each feeding apparatus 2 is connected to gas line 32. The fish pen in the lower right hand corner .
... ., , : . :. ~
9 ~
of Figure 9 shows a typical spread pattern 50 for feed pellets that have been expelled from discharge conduit 8.
Figures 6-8 illustrate means for automatically stopping operation of the feeding apparatus after a pre-determined amount of feed has been delivered that can beused with the feeding apparatus of the present invention.
As best shown in Figure 6, the means for automatically stopping operation of the feeding apparatus comprises a scale system 55 associated with support framework 11 for monitoring the weight of bin 4 and a control switch 56 for shutting off the flow of compressed air to the feeding apparatus. Control switch 56 is operated by elongate scale member 57 of the scale system. Scale member 57 is rigidly attached to an end of flexion shaft 58. Shaft 58 is lo¢ated by mutually perpendicular arms 60 and 62 extending from support framework 11. The weight of bin 4 is transmitted to one side of flexion shaft 58 by arm 59 extending from the rear side wall of bin 4. A bolt 63 extends horizontally through arm 60, shaft 58 and arm 59 to secure the various parts together.
A bolt 64 extends vertically through arm 62 and shaft 58 to secure the two parts together.
Mass 65 is movable along elongate scale member 57.
Therefore, the weight of bin 4 and mass 65 are supported on opposite sides of flexion shaft 58 such that the weight of bin 4 exerts a torque in a clockwise direction about the flexion shaft as viewed in Figure 6. Mass 65 exerts an opposite counterclockwise torgue about the flexion shaft. Movement of mass 65 along scale member 57 to a eet poeition eetabliehee a torque about the flexion shaft. Initially, bin 4 ie suffiaiently heavy to overcome the torque of mass 65 and exert a clockwise torque on shaft 58 causing scale member 57 to move upwardly to toggle switch 56 into a position that delivers compressed air to the feeding apparatus. A8 feed is discharged during normal operation bin 4 will get lighter. When bin 4 reaches a weight that is insufficient to offset the torque of mass 65, the scale member 57 will flex about the flexion shaft in the direction of the counterclockwise torgue exerted by the mass to cause the elongate scale member to engage and toggle switch 56 into a position that shuts off compressed air.
Scale member 57 can be calibrated with markings that ;
indicate various amounts of feed. ~y moving mass 65 to a balance position to establish a starting weight and then moving the mass to a mark indicating a lower stop weight, an operator can set the feeding apparatus of the present invention to ~hut off automatically once an amount of feed equal to the difference between the start and end weights ha~ been delivered.
As best shown in Figure 8, bin 4 can be partially supported by flexible mounting brackets 69 extending between the bin and support framework 11. As long as brackets 69 are sufficiently flexible to permit movement of bin 4 about flexion shaft 58 and scale member 57 has been calibrated appropriately to account for the bin weight ~upported by the brackets, the automatic shut off ~y~tem of the pre~ent invention will function. In prototype te~ting, the automatic shutoff system was capable of delivering feed quantities between 5-200 kg.
Figure 10 i~ a schematic diagram indicating the operation of the automatic ~hutoff ~y~tem. Scale ~ystem 55 compare~ the opposite torque~ exerted by bin 4 and mas~ 65 about flexion ~haft 58. Compres~ed air fed through line 32 by compressor 34 is cut off at switch 56 when the torque exerted by mass 65 overcomes the torque exerted by the weight of bin 4.
.. .., ,. , , : .. ...
.: ! ,, " "
~9~
A flow meter 67 and valve 68 are provided in line 32 to control the flow of compres~ed air to a feeding apparatu~ ~ufficient to accommodate a minimum de~ired time interval between di~charges of feed. Fine adjustment of the time interval can be made at valve unit 29 using spring adjustment screw 38 (Figure 5). Flow meter 67 can be calibrated in terms of minimum time intervals between di6charges - the greater the flow of compressed air, the smaller the time interval possible between successive discharges of feed. Valve 68 can also be used to adjust the time between feed discharges when i8 necessary to adjust the distance of feed spread by manipulating valve unit 29.
Figures 11-13 illustrate an alternative embodiment of the present invention that employs a removable bin unlt 70. Bin unit 70 can be filled with feed pellets at a remote location and transported to the feeding apparatus. In order to accommodate bin unit 70, the feeding apparatus of the previous embodiment is modified to provide a funnel-shaped base 9 and a backing plate 72 adapted to receive bin unit 70. Releasable attachme~t means in the form of hooks 73, for example, are used to lock bin unit 70 to base 9.
Removable bin unit 70 is formed with triangular hinged flaps 75 ~Figure 12) that permit the base of the bin unit to be opened to communicate the bin contents with base 9 when the bin is in place on the base. In the illustrated embodiment, the four triangular flaps are plvotable between a closed overlapping position to seal bln 70 (Figure 13) and an open position to release the contents of the bin. Locking means in the form of chain 76 extending between the flaps and a brace member 77 can be used to hold the flaps in the closed position.
- : , , . ;, ... . .
~9~
Although the present invention has been described in some detail by way of example for purposes of clarity and understanding, it will be apparent that certain changes and modifications may be practised within the scope of the appended claims.
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. . . :. . .. ,, ~: .
Claims (28)
1. A feeding apparatus for delivering feed at timed intervals comprising:
bin means for storing feed having an outlet;
a discharge conduit in communication with the outlet for storing a pre-determined amount of feed;
expulsion means in communication with the discharge conduit for discharging feed from the conduit at timed intervals; and timing means for controlling the interval between successive discharges of the feed, the time between discharges being used to deliver feed to the discharge conduit through the bin outlet.
bin means for storing feed having an outlet;
a discharge conduit in communication with the outlet for storing a pre-determined amount of feed;
expulsion means in communication with the discharge conduit for discharging feed from the conduit at timed intervals; and timing means for controlling the interval between successive discharges of the feed, the time between discharges being used to deliver feed to the discharge conduit through the bin outlet.
2. Apparatus as claimed in claim 1 in which the discharge conduit comprises a substantially cylindrical tube having a closed end and an open end, and connected to the bin at an angle with respect to the horizontal to define a reservoir for receiving feed from the bin outlet.
3. Apparatus as claimed in claim 2 in which the bin outlet communicates with the discharge conduit at a point intermediate the ends of the conduit and the expulsion means communicates with the conduit adjacent the closed end.
4. Apparatus as claimed in claim 2 in which the discharge conduit includes a movable insert to adjust the amount of feed that the discharge conduit can hold.
5. Apparatus as claimed in claim 4 in which the movable insert includes a stop surface adjacent the lower end of the discharge conduit to prevent passage of feed in one direction and permit passage of air in the opposite direction.
6. Apparatus as claimed in claim 5 in which the stop surface comprises at least one perforated surface.
7. Apparatus as claimed in claim 5 in which the stop surface comprises a one way valve.
8. Apparatus as claimed in claim 1 in which feed from the bin is delivered to the discharge conduit by gravity.
9. Apparatus as claimed in claim 1 in which the discharge conduit includes dispersing means for creating an even dispersal pattern of discharged feed.
10. Apparatus as claimed in claim 9 in which the dispersing means includes a pivotable plate positionable over the end of the discharge conduit.
11. Apparatus as claimed in claim 1 in which the expulsion means comprises a source of compressed gas for introducing gas under pressure to the discharge conduit at intervals under the control of the timing means.
12. Apparatus as claimed in claim 11 in which the source of compressed gas is at a location remote from the feeding apparatus and is supplied by compressed gas through a gas line.
13. Apparatus as claimed in claim 11 in which the timing means comprises:
a reservoir for collecting and storing gas under pressure having an inlet connected to the source of compressed gas and an outlet connected to the discharge conduit; and valve means adjacent the outlet to control the flow of gas from the reservoir and adapted to store gas under pressure in the reservoir until a pre-determined pressure is reached after a time interval whereupon the valve releases the gas through the outlet to the discharge conduit.
a reservoir for collecting and storing gas under pressure having an inlet connected to the source of compressed gas and an outlet connected to the discharge conduit; and valve means adjacent the outlet to control the flow of gas from the reservoir and adapted to store gas under pressure in the reservoir until a pre-determined pressure is reached after a time interval whereupon the valve releases the gas through the outlet to the discharge conduit.
14. Apparatus as claimed in claim 13 in which the valve means comprises:
a sealed chamber communicating the reservoir outlet with the discharge conduit;
a piston movable within the chamber between a sealed position in which the piston seals the reservoir and an open position in which the piston is displaced within the chamber to permit gas under pressure to enter the discharge conduit from the reservoir; and adjustable biasing means for biasing the piston toward the sealed position against the force of the pressurized gas in the reservoir to select a pre-determined pressure at which the piston will move from the sealed position to the open position such that the time interval between piston movements is adjustable.
a sealed chamber communicating the reservoir outlet with the discharge conduit;
a piston movable within the chamber between a sealed position in which the piston seals the reservoir and an open position in which the piston is displaced within the chamber to permit gas under pressure to enter the discharge conduit from the reservoir; and adjustable biasing means for biasing the piston toward the sealed position against the force of the pressurized gas in the reservoir to select a pre-determined pressure at which the piston will move from the sealed position to the open position such that the time interval between piston movements is adjustable.
15. Apparatus as claimed in claim 14 in which the biasing means comprises a spring extending between the piston and the end of the chamber with means for varying the compression of the spring when the piston is in the sealed position to vary the pressure at which the piston will move from the sealed position to the open position.
16. Apparatus as claimed in claim 1 in which the bin means comprises an enclosure having a hinged cover, side walls and a funnel-shaped base connected to the discharge conduit.
17. Apparatus as claimed in claim 16 in which the bin means is mounted to a support frame.
18. Apparatus as claimed in claim 1 including a support frame for supporting the bin means, the bin means comprising a funnel-shaped base connected to the discharge conduit adapted to receive a removable enclosure having a hinged cover, side walls and a base.
19. Apparatus as claimed in claim 18 in which the enclosure base is formed with means to permit the base to be opened when in place on the funnel-shaped base.
20. Apparatus as claimed in claim 19 in which the means to permit the base to be opened comprises a plurality of hinged flaps pivotable between a closed overlapping position to seal the enclosure and an open position to release the contents of the enclosure, and locking means to hold the flaps in the closed position.
21. Apparatus as claimed in claim 1 including means for automatically stopping operation of the feeding apparatus after a pre-determined amount of feed has been delivered.
22. Apparatus as claimed in claim 21 in which the means for automatically stopping operation of the feeding apparatus comprises:
a support framework;
scale means associated with the support framework for monitoring the weight of the bin means; and switch means operated by the scale means for deactivating the expulsion means when the weight of the bin means is less than a pre-set amount.
a support framework;
scale means associated with the support framework for monitoring the weight of the bin means; and switch means operated by the scale means for deactivating the expulsion means when the weight of the bin means is less than a pre-set amount.
23. Apparatus as claimed in claim 22 in which the scale means comprises:
a flexion point; and a mass movable along an elongate scale member rigidly attached to the flexion point, the weight of the bin means and the mass being supported on opposite sides of the flexion point such that the weight of the bin means exerts a torque in one direction about the flexion point and the mass exerts an opposite torque about the flexion point, movement of the mass along the scale member to a set position establishing a torque about the flexion point such that when the bin means reaches a weight that is insufficient to offset the torque of the mass, the scale means will flex about the flexion point in the direction of the torque exerted by the mass to cause the elongate scale member to engage the switch means to deactive the expulsion means.
a flexion point; and a mass movable along an elongate scale member rigidly attached to the flexion point, the weight of the bin means and the mass being supported on opposite sides of the flexion point such that the weight of the bin means exerts a torque in one direction about the flexion point and the mass exerts an opposite torque about the flexion point, movement of the mass along the scale member to a set position establishing a torque about the flexion point such that when the bin means reaches a weight that is insufficient to offset the torque of the mass, the scale means will flex about the flexion point in the direction of the torque exerted by the mass to cause the elongate scale member to engage the switch means to deactive the expulsion means.
24. Apparatus as claimed in claim 23 in which the weight of the bin means is partially supported by flexible brackets extending between the bin means and the support framework.
25. A method of delivering feed at timed intervals to livestock comprising:
1) storing feed in a bin;
2) delivering feed continuously from the bin to a discharge conduit for storing a pre-determined amount of feed;
3) discharging the feed stored in the discharge conduit for dispersal to livestock at timed intervals sufficient for the pre-determined amount of feed to be delivered to the discharge conduit between discharges.
1) storing feed in a bin;
2) delivering feed continuously from the bin to a discharge conduit for storing a pre-determined amount of feed;
3) discharging the feed stored in the discharge conduit for dispersal to livestock at timed intervals sufficient for the pre-determined amount of feed to be delivered to the discharge conduit between discharges.
26. A method as claimed in claim 25 in which the step of discharging the feed comprises applying a stream of pressurized gas to the discharge conduit.
27. A method as claimed in claim 25 in which the step of delivering feed relies on gravity to move the feed from the bin to the discharge conduit.
28. A method as claimed in claim 25 including the additional step of automatically stopping the discharging step when a pre-determined amount of feed has been delivered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002099241A CA2099241A1 (en) | 1993-06-25 | 1993-06-25 | Feeding apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002099241A CA2099241A1 (en) | 1993-06-25 | 1993-06-25 | Feeding apparatus and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2099241A1 true CA2099241A1 (en) | 1994-12-26 |
Family
ID=4151844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002099241A Abandoned CA2099241A1 (en) | 1993-06-25 | 1993-06-25 | Feeding apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2099241A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999029166A1 (en) * | 1997-12-10 | 1999-06-17 | Akva As | A dosing device and a method for dosed feeding of grained, pelletized or granulated mass material out from a container |
| EP1885177A1 (en) * | 2005-05-31 | 2008-02-13 | Department of Fisheries | Food dispensers and aquaculture systems |
| CN102771433A (en) * | 2012-08-16 | 2012-11-14 | 四川农业大学 | Feeding system and feeding device |
| NO20160021A1 (en) * | 2016-01-06 | 2017-07-07 | Vidar Myhre | Procedure for calculating feed quantity in a fish farming cage. |
| CN110178777A (en) * | 2019-06-28 | 2019-08-30 | 中国水产科学研究院淡水渔业研究中心 | A kind of Cultivated water region bait delivery device |
| CN112136744A (en) * | 2020-09-22 | 2020-12-29 | 欧阳福林 | A evenly throw edible equipment for fish culture |
| CN112293328A (en) * | 2020-11-12 | 2021-02-02 | 倪强 | Automatic device of throwing something and feeding of fodder for aquaculture |
| CN114831064A (en) * | 2022-05-26 | 2022-08-02 | 广东农工商职业技术学院 | Automatic feeding device of wisdom agricultural bait |
| CN114831065A (en) * | 2022-07-04 | 2022-08-02 | 山东中创亿***料集团有限公司 | Aquaculture throws material device with ration |
| CN114868692A (en) * | 2022-07-08 | 2022-08-09 | 东营正大水产有限公司 | Multi-bin intelligent feeding device with matrix selector |
-
1993
- 1993-06-25 CA CA002099241A patent/CA2099241A1/en not_active Abandoned
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999029166A1 (en) * | 1997-12-10 | 1999-06-17 | Akva As | A dosing device and a method for dosed feeding of grained, pelletized or granulated mass material out from a container |
| GB2347666A (en) * | 1997-12-10 | 2000-09-13 | Akva As | A dosing device and a method for dosed feeding of grained, pelletized or granulated mass material out from a container |
| GB2347666B (en) * | 1997-12-10 | 2002-03-27 | Akva As | A dosing device and a method for dosed feeding of grained, pelletized or granulated mass material out from a container |
| EP1885177A1 (en) * | 2005-05-31 | 2008-02-13 | Department of Fisheries | Food dispensers and aquaculture systems |
| EP1885177A4 (en) * | 2005-05-31 | 2009-09-02 | Dept Of Fisheries | Food dispensers and aquaculture systems |
| CN102771433A (en) * | 2012-08-16 | 2012-11-14 | 四川农业大学 | Feeding system and feeding device |
| NO20160021A1 (en) * | 2016-01-06 | 2017-07-07 | Vidar Myhre | Procedure for calculating feed quantity in a fish farming cage. |
| NO343791B1 (en) * | 2016-01-06 | 2019-06-11 | Vidar Myhre | Procedure for calculating feed quantity as a function of time in a fish farming cage, for subsequent feeding day. |
| CN110178777A (en) * | 2019-06-28 | 2019-08-30 | 中国水产科学研究院淡水渔业研究中心 | A kind of Cultivated water region bait delivery device |
| CN110178777B (en) * | 2019-06-28 | 2023-12-22 | 中国水产科学研究院淡水渔业研究中心 | Bait throwing device for cultivation water area |
| CN112136744A (en) * | 2020-09-22 | 2020-12-29 | 欧阳福林 | A evenly throw edible equipment for fish culture |
| CN112136744B (en) * | 2020-09-22 | 2022-08-09 | 山东中林东平湖发展有限公司 | A evenly throw edible equipment for fish culture |
| CN112293328A (en) * | 2020-11-12 | 2021-02-02 | 倪强 | Automatic device of throwing something and feeding of fodder for aquaculture |
| CN114831064A (en) * | 2022-05-26 | 2022-08-02 | 广东农工商职业技术学院 | Automatic feeding device of wisdom agricultural bait |
| CN114831064B (en) * | 2022-05-26 | 2023-06-23 | 广东农工商职业技术学院 | Automatic device of throwing something and feeding of wisdom agricultural bait |
| CN114831065A (en) * | 2022-07-04 | 2022-08-02 | 山东中创亿***料集团有限公司 | Aquaculture throws material device with ration |
| CN114868692A (en) * | 2022-07-08 | 2022-08-09 | 东营正大水产有限公司 | Multi-bin intelligent feeding device with matrix selector |
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