CA2237511A1 - Vehicle sand spreader - Google Patents
Vehicle sand spreader Download PDFInfo
- Publication number
- CA2237511A1 CA2237511A1 CA 2237511 CA2237511A CA2237511A1 CA 2237511 A1 CA2237511 A1 CA 2237511A1 CA 2237511 CA2237511 CA 2237511 CA 2237511 A CA2237511 A CA 2237511A CA 2237511 A1 CA2237511 A1 CA 2237511A1
- Authority
- CA
- Canada
- Prior art keywords
- conduit
- bin
- vehicle
- plenum
- curved
- 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
- 239000004576 sand Substances 0.000 title description 12
- 239000007789 gas Substances 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000007710 freezing Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 241001504505 Troglodytes troglodytes Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
- E01H10/007—Mobile apparatus specially adapted for preparing or applying liquid or semi-liquid thawing material or spreading granular material on wintry roads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
- B60P1/165—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms tipping movement about a fore and aft axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/28—Tipping body constructions
- B60P1/283—Elements of tipping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/36—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using endless chains or belts thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C2019/2055—Details not otherwise provided for
- E01C2019/207—Feeding the distribution means
- E01C2019/2075—Feeding the distribution means with longitudinal conveyor belt
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
- E01C2019/2055—Details not otherwise provided for
- E01C2019/207—Feeding the distribution means
- E01C2019/2095—Feeding the distribution means by tipping
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
A sanding vehicle with a sideways tipping bin has a heated floor. The floor plenum is supplied with hot engine exhaust gas through a curved conduit that maintains the connection which the bin is raised. The use of two telescopically interfitted curved conduits is a preferred, compact variant.
Description
TITLE: Vehicle Sand Spreader FIELD OF THE INVENTION
This invention relates to vehicles for spreading sand and salt on highways in. cold climates. In particular it relates to a vehicle style wherein the bin carrying salt and/or sand is tilted during the salt/sand delivery process to help in emptying the bi.n.
BACKGROUND TO THE INVEI~fTION
In sanding vehicles, particularly those spreading salt-sand mixtures on winter highways, a known problem arises from the tendency of the mixaure to freeze in the bin, making a portion of the load unavailable for spreading on the road surface. This can occur with a sand mixture which is damp or wet wren loaded. The water content then freezes when the vehicle goes outdoors in sub-freezing temperatures. As well, the presence of salt can cause t:he water in frozen sand to temporarily melt, only to freeze again when especially low temperatures occur. Th_Ls freezing of water within the mixture occurs particularly over the metal surface of the bin and interferes with the tendency of unfrozen sand and salt to slide over such surface. It is nE=cessary for this sliding to occur in order for the mixture to be delivered to the typical conveyor mounted along the bottom of the bin for delivery of the salt to the highwa~~.
A special form of sanding bin is one wherein the bin is tippable . In such trucks the bin is elevated laterally about a front-to-back axis while the vehicle is in motion.
This action causes the friable sand/salt load to slide sideways to a longitudinally oriented conveyer, typically mounted along one side of the bin. This tipping action is used as an alternative to providing the bin with steeply sloping sides. By using a flat bottomed bin that can be tipped-up laterally, a .Loaded sanding vehicle can commence its run with a fuller load, positioned at a lower center of gravity. This increases both the safety and driveability of the sander vehicle.
However, even with this side-tipping feature, the problem of blockage due to freezing of the load over the bottom surface of the bin persists.
In non-tipping sanders, with bins having sloping bottoms, it has been known to provide heat to the bottom surface of the bin in order to melt and free-up frozen salt and sand. This has been done by directing exhaust gas from the engine to a plenum underlying the bin floor. This same arrangement has also been provided for flat-bottom bins in tipping sanders. However, in the latter case the connection
This invention relates to vehicles for spreading sand and salt on highways in. cold climates. In particular it relates to a vehicle style wherein the bin carrying salt and/or sand is tilted during the salt/sand delivery process to help in emptying the bi.n.
BACKGROUND TO THE INVEI~fTION
In sanding vehicles, particularly those spreading salt-sand mixtures on winter highways, a known problem arises from the tendency of the mixaure to freeze in the bin, making a portion of the load unavailable for spreading on the road surface. This can occur with a sand mixture which is damp or wet wren loaded. The water content then freezes when the vehicle goes outdoors in sub-freezing temperatures. As well, the presence of salt can cause t:he water in frozen sand to temporarily melt, only to freeze again when especially low temperatures occur. Th_Ls freezing of water within the mixture occurs particularly over the metal surface of the bin and interferes with the tendency of unfrozen sand and salt to slide over such surface. It is nE=cessary for this sliding to occur in order for the mixture to be delivered to the typical conveyor mounted along the bottom of the bin for delivery of the salt to the highwa~~.
A special form of sanding bin is one wherein the bin is tippable . In such trucks the bin is elevated laterally about a front-to-back axis while the vehicle is in motion.
This action causes the friable sand/salt load to slide sideways to a longitudinally oriented conveyer, typically mounted along one side of the bin. This tipping action is used as an alternative to providing the bin with steeply sloping sides. By using a flat bottomed bin that can be tipped-up laterally, a .Loaded sanding vehicle can commence its run with a fuller load, positioned at a lower center of gravity. This increases both the safety and driveability of the sander vehicle.
However, even with this side-tipping feature, the problem of blockage due to freezing of the load over the bottom surface of the bin persists.
In non-tipping sanders, with bins having sloping bottoms, it has been known to provide heat to the bottom surface of the bin in order to melt and free-up frozen salt and sand. This has been done by directing exhaust gas from the engine to a plenum underlying the bin floor. This same arrangement has also been provided for flat-bottom bins in tipping sanders. However, in the latter case the connection
2 to the heating source has been broken or interrupted once the bin ccmmences to be elevated.
A need exists for a system by which heating may continue to be conveyed to the i=loor of a tipping bin on a sander even after the bin has commenced to be elevated.
The invention in its general form will first be described, and then it;s implementation in terms of specific embodiments will be detailed with reference to the drawings following hereafter. These embodiments are intended to demonstrate the principle of the invention, and the manner of its implementation. The invention in its broadest and more specific forms will then be further described, and defined, in each of the individual claims which conclude this Specification.
SUMMARY OF THE INVENTIC)N
According to one feature of the invention a sanding vehicle with a tipping bin having a heated plenum is provided with a curved conduit, bent about the axis of rotation of the tipping bin and extending from the plenum to communicate with a heated cavity serving as a source of hot gases. The heated cavity may be a box preferably provided with hot engine exhaust gas.
In order to render the coupling between the heated plenum of the bin and the heated cavity supplying hot gases
A need exists for a system by which heating may continue to be conveyed to the i=loor of a tipping bin on a sander even after the bin has commenced to be elevated.
The invention in its general form will first be described, and then it;s implementation in terms of specific embodiments will be detailed with reference to the drawings following hereafter. These embodiments are intended to demonstrate the principle of the invention, and the manner of its implementation. The invention in its broadest and more specific forms will then be further described, and defined, in each of the individual claims which conclude this Specification.
SUMMARY OF THE INVENTIC)N
According to one feature of the invention a sanding vehicle with a tipping bin having a heated plenum is provided with a curved conduit, bent about the axis of rotation of the tipping bin and extending from the plenum to communicate with a heated cavity serving as a source of hot gases. The heated cavity may be a box preferably provided with hot engine exhaust gas.
In order to render the coupling between the heated plenum of the bin and the heated cavity supplying hot gases
3 more c:ompact, a second curved conduit, also bent about the axis c>f rotation for the b.in, may extend upwardly from the heated. cavity, engaging the firsts conduit telescopically.
This second c:onduit may either interfit within the first conduit or surroundingly embrace it on the outside. In either case, a close s7_iding fit is provided between the two conduits to minimize loss o:f the hot gases.
A further advantage is obtained by fabricating the conduit of flat steel t:o form a boxed-like tube, rather than a circular tube. Sheet steel so formed is better able to resist the highly corrosive effects of engine exhaust gases.
The foregoinc; summarizes the principal features of the invention and some of its optional aspects. The invention may be further understood by the description of the preferred embodiments, in conjunction with the drawings, which now follow.
SUMMARY OF THE FIGURES
Figure 1 is a rear cro=>s-sectional view of a prior art sanding vehicle having a tippable sand bin in an elevated position;
Figure 2 is a perspective cross-section through the chassis and bin of a mirror image arrangement of the vehicle of Figure 1 showing a prior art, under-bin, heating plenum
This second c:onduit may either interfit within the first conduit or surroundingly embrace it on the outside. In either case, a close s7_iding fit is provided between the two conduits to minimize loss o:f the hot gases.
A further advantage is obtained by fabricating the conduit of flat steel t:o form a boxed-like tube, rather than a circular tube. Sheet steel so formed is better able to resist the highly corrosive effects of engine exhaust gases.
The foregoinc; summarizes the principal features of the invention and some of its optional aspects. The invention may be further understood by the description of the preferred embodiments, in conjunction with the drawings, which now follow.
SUMMARY OF THE FIGURES
Figure 1 is a rear cro=>s-sectional view of a prior art sanding vehicle having a tippable sand bin in an elevated position;
Figure 2 is a perspective cross-section through the chassis and bin of a mirror image arrangement of the vehicle of Figure 1 showing a prior art, under-bin, heating plenum
4 connected to a heated c:avity supplying a source of hot gases through a disconnecting interface;
Figures 2a and 2b are details of Figure 2 with the tipping bin respective7_y horizont=al and elevated.
Figures 3a and 3b are a cross-sections of the bin of Figure 2 with the modification of the invention present in the curved. conduit extending from the heating plenum into a box supplying hot gases, respectively in horizontal and vertical positions;
Figure 3c is a cross-section through the conduit of Figure 3b.
Figure 4 is a cross-section as in Figure 3 wherein the connection between the plenum and heated cavity is effected through two telescopically interfitted curved conduits.
Figure 5 is a cross-sectional view of Figure 4 with the bin in an elevated, tipped-up position;
Figure 6 shows a detail of a variant of Figure 4 wherein the lower conduit extend=~ into the plenum itself.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In Figure 1 a prior art: vehicle 1 with a chassis 2 and wheels 3 carries a bin 9. The bin 4 has an inner tipping portion 5 with a floor 6 and an elevating sidewall 6A. When an hydraulic cylinder 7 raises t:he inner tipping portion 5,
Figures 2a and 2b are details of Figure 2 with the tipping bin respective7_y horizont=al and elevated.
Figures 3a and 3b are a cross-sections of the bin of Figure 2 with the modification of the invention present in the curved. conduit extending from the heating plenum into a box supplying hot gases, respectively in horizontal and vertical positions;
Figure 3c is a cross-section through the conduit of Figure 3b.
Figure 4 is a cross-section as in Figure 3 wherein the connection between the plenum and heated cavity is effected through two telescopically interfitted curved conduits.
Figure 5 is a cross-sectional view of Figure 4 with the bin in an elevated, tipped-up position;
Figure 6 shows a detail of a variant of Figure 4 wherein the lower conduit extend=~ into the plenum itself.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In Figure 1 a prior art: vehicle 1 with a chassis 2 and wheels 3 carries a bin 9. The bin 4 has an inner tipping portion 5 with a floor 6 and an elevating sidewall 6A. When an hydraulic cylinder 7 raises t:he inner tipping portion 5,
5 the load 8 slides towards a conveyor 9 for distribution on the highway by a rotating A~preader plate 10.
In Figures 2, 2a and 2b the floor 6 of the tipping porticn 5 of the bin 4, shown in mirror image, has an under floor plenum 11 . A hole 12 provides an inlet for hot gases 15 to ent=er the plenum 11 and heat the load 8. A tube 13 connected to the exhau~>t lines 14 of the vehicle engine (not shown) allows hot gases 15 to enter the plenum 11 when the floor 6 of the tipping portion 5 of the bin 4 is horizontal.
When the floor 6 of this prior art arrangement is raised the tube 13 that terminate: at the inlet 12 to the plenum 11 is separated from the plenum 11 and hot gases 15 cease to heat the floor 6 of the bin 4. This is a prior art arrangement.
In Figures 3a and 3b, according to the invention, the tube 13 of Figure 2 has been :replaced by a curved conduit 23 that is attached to, and communicates with, the plenum 11.
This curved conduit 23 extends into a box or cavity 16 supplied with hot gases 15 by the pipes 17. The entry of the conduit 23 into the box: 16 at box opening 16a is a close fit that limits the escape of hot gases 15. The conduit 23 is curved about the same axis 18 about which the tipping of the tipping portion 5 of the bin 4 rotates to allow it to slide without interference through box opening 16a.
Preferably, the conduit 23 is of rectangular cross-section or box-like in form as shown in cross-section 3c.
In Figures 2, 2a and 2b the floor 6 of the tipping porticn 5 of the bin 4, shown in mirror image, has an under floor plenum 11 . A hole 12 provides an inlet for hot gases 15 to ent=er the plenum 11 and heat the load 8. A tube 13 connected to the exhau~>t lines 14 of the vehicle engine (not shown) allows hot gases 15 to enter the plenum 11 when the floor 6 of the tipping portion 5 of the bin 4 is horizontal.
When the floor 6 of this prior art arrangement is raised the tube 13 that terminate: at the inlet 12 to the plenum 11 is separated from the plenum 11 and hot gases 15 cease to heat the floor 6 of the bin 4. This is a prior art arrangement.
In Figures 3a and 3b, according to the invention, the tube 13 of Figure 2 has been :replaced by a curved conduit 23 that is attached to, and communicates with, the plenum 11.
This curved conduit 23 extends into a box or cavity 16 supplied with hot gases 15 by the pipes 17. The entry of the conduit 23 into the box: 16 at box opening 16a is a close fit that limits the escape of hot gases 15. The conduit 23 is curved about the same axis 18 about which the tipping of the tipping portion 5 of the bin 4 rotates to allow it to slide without interference through box opening 16a.
Preferably, the conduit 23 is of rectangular cross-section or box-like in form as shown in cross-section 3c.
6 This ~~ermits sheet steel to be used to form the conduit, of sufficient thickness to resist corrosion by the hot gases 15.
In Figure 4 the curved conduit 15 of Figure 3 is replaced by two upper and lower curved conduits 19,20 respectively fastened i~o the plenum 11 and gas supply pipes 17. To facilitate the alignment of the curved lower conduit 20, a serpentine section 21 is provided as the terminal portion of the supply piping 17. Both of the conduits 19,20 are curved about the axis 18 around which the tippable portion 5 of the bin 4 rotates a.nd interfit telescopically. The lower conduit 20 may fit either within or surrounding the upper conduit 19.
As the bin portion 5 is tipped up, as shown in Figure 5, the upper and lower conduits 19 and 20 slide telescopically over each other. By being in a close sliding fit, the loss of hot g<~ses 15 is minimized. By providing a telescopic connection a. more compact coupling is effected.
As mentioned, the conduits 19,20 are preferably rectangular in cross-~>ection for ease of manufacture and durability. Each are of a length so as to be nearly disengaged when the bin. portion 5 is elevated. Conveniently the lo;aer conduit 20 ma;r extend into the plenum 11 as shown in Figure 6 when the bin portion 5 is horizontal to provide greater travel to the lifting bin portion 5.
In Figure 4 the curved conduit 15 of Figure 3 is replaced by two upper and lower curved conduits 19,20 respectively fastened i~o the plenum 11 and gas supply pipes 17. To facilitate the alignment of the curved lower conduit 20, a serpentine section 21 is provided as the terminal portion of the supply piping 17. Both of the conduits 19,20 are curved about the axis 18 around which the tippable portion 5 of the bin 4 rotates a.nd interfit telescopically. The lower conduit 20 may fit either within or surrounding the upper conduit 19.
As the bin portion 5 is tipped up, as shown in Figure 5, the upper and lower conduits 19 and 20 slide telescopically over each other. By being in a close sliding fit, the loss of hot g<~ses 15 is minimized. By providing a telescopic connection a. more compact coupling is effected.
As mentioned, the conduits 19,20 are preferably rectangular in cross-~>ection for ease of manufacture and durability. Each are of a length so as to be nearly disengaged when the bin. portion 5 is elevated. Conveniently the lo;aer conduit 20 ma;r extend into the plenum 11 as shown in Figure 6 when the bin portion 5 is horizontal to provide greater travel to the lifting bin portion 5.
7 In Figures 4 and 5 the underfloor plenum 11 of Figure 3 is divided into plenum portion 11a and 11b. The small plenum portion 11b restricts the introduction of hot gases 15 so that such cases 15 preferentially flow under the tipping bin floor 6, proximate to the hinge axis 18 and conveyor 9.
To prevent undue back-pr_ essure developing in the hot gas supply tubes providing engine exhaust gas, a pressure relief valve 24 may be provided on the piping 17.
A flange 25 may terminate the free end of the upper, outer conduit 19 to provide protection to the edge of the conduit 19 and a mean~> to adjust the final portion of the sliding fit to contain hot gases 15.
In this manner, a compact and efficient system is provided for transferr_Lng heat into the tippable bin 4 when the tipping portion 5 of the bin 4 is elevated.
CONCLUSION
The foregoing has constituted a description of specific embodiments showing how the invention may be applied and put into use. Thes~a embodiments are only exemplary. The invention in its broadest, and more specific aspects, is further described and defined in t:he claims which now follow.
These claims, and the language used therein, are to be understood in terms of the variants of the invention which
To prevent undue back-pr_ essure developing in the hot gas supply tubes providing engine exhaust gas, a pressure relief valve 24 may be provided on the piping 17.
A flange 25 may terminate the free end of the upper, outer conduit 19 to provide protection to the edge of the conduit 19 and a mean~> to adjust the final portion of the sliding fit to contain hot gases 15.
In this manner, a compact and efficient system is provided for transferr_Lng heat into the tippable bin 4 when the tipping portion 5 of the bin 4 is elevated.
CONCLUSION
The foregoing has constituted a description of specific embodiments showing how the invention may be applied and put into use. Thes~a embodiments are only exemplary. The invention in its broadest, and more specific aspects, is further described and defined in t:he claims which now follow.
These claims, and the language used therein, are to be understood in terms of the variants of the invention which
8 have ~~een described. 'they are not to be restricted to such variants, but are to be read as covering the full scope of the invention as is implicit within the invention and the disclosure that has been provided herein.
9
Claims (7)
PROPERTY ARE CLAIMED AS FOLLOWS:
1. A sanding vehicle comprising:
(a) a heated cavity to serve as a source of hot gases;
(b) a tipping bin with a floor rotatable about an axis, said bin havung a heated plenum beneath its floor;
and (c) a curved conduit, bent to curve at a constant radius about the axis of rotation of the tipping bin and extending from the plenum to communicate with said heated cavity to permit hot gases to flow from the heated cavity to the plenum as the bin is rotated about its axis.
(a) a heated cavity to serve as a source of hot gases;
(b) a tipping bin with a floor rotatable about an axis, said bin havung a heated plenum beneath its floor;
and (c) a curved conduit, bent to curve at a constant radius about the axis of rotation of the tipping bin and extending from the plenum to communicate with said heated cavity to permit hot gases to flow from the heated cavity to the plenum as the bin is rotated about its axis.
2. A vehicle as in claim 1, wherein the heated cavity is a box provided with hot gases from the engine exhaust gases.
3. A vehicle as in claim 1 further comprising:
(a) a second curved conduit, also bent in a curve of constant radius about t:he axis of rotation for the bin, extending upwardly from the heated cavity and engaging the first conduit telescopically in a close sliding fit to minimize loss of the hot gases.
(a) a second curved conduit, also bent in a curve of constant radius about t:he axis of rotation for the bin, extending upwardly from the heated cavity and engaging the first conduit telescopically in a close sliding fit to minimize loss of the hot gases.
4. A vehicle as in claim 1 wherein the second conduit interfits within the first conduit.
5. A vehicle as in claim 1 wherein the second conduit surroundingly embraces the first conduit on the outside.
6. A vehicle as in claim 3 having an engine that provides engine exhaust gas wherein the heated cavity is a section of curved serpentine conduit bent reflexively and supplied with engine exhaust gas provided by the vehicle.
7. A vehicle as in claim 1 wherein the curved conduit is rectangular in cross-section and is fabricated of sheet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2237511 CA2237511A1 (en) | 1998-05-13 | 1998-05-13 | Vehicle sand spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2237511 CA2237511A1 (en) | 1998-05-13 | 1998-05-13 | Vehicle sand spreader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2237511A1 true CA2237511A1 (en) | 1999-11-13 |
Family
ID=29275714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2237511 Abandoned CA2237511A1 (en) | 1998-05-13 | 1998-05-13 | Vehicle sand spreader |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2237511A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1030022C2 (en) * | 2005-09-23 | 2007-03-26 | Konink Bam Groep Nv | Tipper truck for carrying e.g. asphalt, has load compartment with narrow region next to tailboard |
| EP2106967A1 (en) * | 2008-04-02 | 2009-10-07 | Societe Bernard Desgranges | Dump body for concrete waste |
| US20150299971A1 (en) * | 2014-02-07 | 2015-10-22 | Gregory Carpenter | Radiant heating system and method for vehicle mounted salt box |
| WO2017055640A1 (en) * | 2015-10-01 | 2017-04-06 | Aebi Schmidt Nederland Bv | Gritting device |
| WO2017055493A1 (en) * | 2015-10-01 | 2017-04-06 | Aebi Schmidt Nederland Bv | Gritting device |
-
1998
- 1998-05-13 CA CA 2237511 patent/CA2237511A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1030022C2 (en) * | 2005-09-23 | 2007-03-26 | Konink Bam Groep Nv | Tipper truck for carrying e.g. asphalt, has load compartment with narrow region next to tailboard |
| EP2106967A1 (en) * | 2008-04-02 | 2009-10-07 | Societe Bernard Desgranges | Dump body for concrete waste |
| FR2929604A1 (en) * | 2008-04-02 | 2009-10-09 | Bernard Desgranges Sarl Soc | BENCH FOR THE RECOVERY OF CONCRETE RELEASE. |
| US20150299971A1 (en) * | 2014-02-07 | 2015-10-22 | Gregory Carpenter | Radiant heating system and method for vehicle mounted salt box |
| WO2017055640A1 (en) * | 2015-10-01 | 2017-04-06 | Aebi Schmidt Nederland Bv | Gritting device |
| WO2017055493A1 (en) * | 2015-10-01 | 2017-04-06 | Aebi Schmidt Nederland Bv | Gritting device |
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