US3554225A - Device for charging a container with gas under pressure - Google Patents
Device for charging a container with gas under pressure Download PDFInfo
- Publication number
- US3554225A US3554225A US789472A US3554225DA US3554225A US 3554225 A US3554225 A US 3554225A US 789472 A US789472 A US 789472A US 3554225D A US3554225D A US 3554225DA US 3554225 A US3554225 A US 3554225A
- Authority
- US
- United States
- Prior art keywords
- piston
- pressure
- inlet
- duct
- auxiliary
- 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.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 19
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 8
- 235000013405 beer Nutrition 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 4
- 239000001569 carbon dioxide Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
- B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
- B67D1/1252—Gas pressure control means, e.g. for maintaining proper carbonation
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7793—With opening bias [e.g., pressure regulator]
- Y10T137/7805—Through external pipe
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8158—With indicator, register, recorder, alarm or inspection means
- Y10T137/8326—Fluid pressure responsive indicator, recorder or alarm
Definitions
- the device avoids the possibility of the control valve being blocked or jammed by the formation of frost and/or ice caused by-the ex pansion of the gas, by providing a gas expansion chamber removed from said valve, whereby the frost of ice formed therein will not prevent the normal operation of the movable parts of the valve.
- the improved device in accordance with the invention is of the type comprising a body having a-fluid pressure inlet conduit, an outletconduit connectable to the container to be charged, and a valve responsive to high pressure, interposed between both conduits and capable of blocking the communication therebetween.
- the devices of the aforesaid type have certain v drawbacks when usedfor regulating the ingress of carbon dioxide into barrels, for example, inasmuch as upon expanding said gas causes a considerable lowering of the temperature within the zone of the expansion. This will in turn cause the formation of frost and/or ice which will within a short time prevent the operation of the movable members of the control valve locatedwithin the zone where frost and/or ice is formed.
- the fluid inlet conduit has the control valve interposed near the inlet proper, and said conduit extends. beyond said valve into a fluid pressure injection conduit leading into an expansion chamber which is substantially removed from the valve, said chamber being connected on the one hand to at least one outlet tube connectable to the container receiving the gas under pressure, and on the other hand said chamber is connected to a return conduit leading into a cylinder and against one face of a piston the opposite face of which is backed up by suitable pressure is created which might close the flow valve.
- the device of the present invention was found to work in a most satisfactory manner-notwithstanding the fact that it was applied to-a barrel of beer wherein the. known regulating valves become jammed after a short time of continuous service.
- reference numerals 7, 8 and 9 extend from the expansion chamber 6 for carrying gas to the barrels or containers holding the liquid to be charged with gas.
- a return duct 10 extends also from the expansion chamber 6 and opens into a cylindrical bore 11 formed in the body'l.
- the bore 11 houses a piston 12 the rear side of which bears against a spring 13 the tension of which is adjustable by means of a hand-controlled screw member 14 provided with a stop 15 for limiting the axial movement thereof in both directions.
- the front face of the piston 12 is permanently in engage ment with one end of a stem 16 the opposite end of which conthe section 2' of the aforesaid inlet bore duct.
- FIG. 4 is a view similar to FIG. 3 but showing the valve ini closedposition; and 1 i F 1G. 5 is a vertical sectional view showing the connection of the device with a pressure indicator.
- the I improved regulating valve is shown to comprise a body 1 having a bore 2 for the inflow of fluid under pressure.
- the bore 2 extends axially into an extension3 provided with means 4 for coupling same to a fluid pressure supply source, which may be a container commonly known as tube.
- the inflow bore 2 communicates with an injection duct 5 which opens into an expansion chamber 6 formed in the body 1.
- a plurality of ducts, three in the embodiment as shown trols a valve interposed between the sections 2 and 2' of the fluid inlet bore or duct.
- the closing member 18 of said valve cooperates with a resilient gasket in the form of a ring 19 of elastomeric material'applied 'coaxially against the mouth of spring 20 urges the closure member 18 towards the closed position thereof.
- Said stem 16 which is slideably mounted within the duct section 2', presents longitudinal flutes in the portion com prised between the closing member 18 and a position short of the end which engages the piston l2. When the valve is in open position, said flutes permit the passage of fluid from the inlet bore 2 into the injection duct 5 connected with said section 2' within which said stem 16 is slidably housed.
- a branch 21 extends from the duct 2' and opens into a safety valve 22 which may be of a conventional type and "serves for releasing gas in case an overpressure is created in the device.
- a further branch 23 opening into a charge indicator 24 (see FIG. 5) fonned by a hollow cylinder 25 slidably'housing therein a piston 26 and 27 of which extends through the end wall 28 of the cylinder 25.
- a spring 29 is in permanent engagement with the piston 26 and tends to maintain the rod 27 within the cylinder bore.
- the operation of the-device is as follows: The fluid from a supply source, not shown, enters the device through the duct 2 (see FIG. 3) passes through the valve l8 duct 2' and injection duct 5, into the expansion and distribution chamber 6. The fluid will then pass through the branch ducts 7, 8 and9 into the containers containing the drink which will receive the gas.
- thepressure of the inflowing gas should be determined between a minimum value and a maximum value.
- the minimum value should be such that the gas circulating through the ducts, particularly the branch 23 will be sufficient to maintain the piston 26 displaced and, consequently, the spring 29 compressed and the rod 27 out of the cylinder 25.
- the safety valve 22 will then; act to release the gas to the atmosphere.
- frost and/or ice will not affect the movable.
- a device for charging a container with pressurized gaseous fluid comprising;
- a gas supply duct having an inlet for gaseous fluid under 5 pressure, an outlet remote from said inlet and an expansion chamber adjacent to and communicating with said outlet and remote from said inlet;
- normally closed valve means in said supply duct adjacent said inlet and movable to open position in response to entry of gaseous fluid under a given pressure through said inlet;
- first spring means permanently biasing said valve means to closed position with a first force
- control means in said housing element including a cylinder and a piston movable therein between a first position and a second position in which latter it engages and maintains said valve means in said open position thereof;
- control duct communicating with said chamber and with said cylinder at the other side of said piston so that the latter is displaced to said first position against said second spring means in response to a predetermined increase in said pressure.
- a device as defined in claim I. further comprising at least one outlet tube communicating with said chamber and adapted to be connected with a container which is to be charged.
- said piston including a piston rod projecting from said other side and engaging said valve means.
- a device as defined in claim 1 further comprising a source of gaseous fluid under pressure communicating with said inlet; and indicating means carried by said housing element and operative for indicating the pressure of gaseous fluid in said source as a function of pressure in at least one of said ducts.
- said indicating means comprising an auxiliary cylinder having an exposed end wall, an auxiliary piston movably accommodated in said auxiliary cylinder, a piston rod carried by said piston and slidably projecting through said endwall for observation exteriorly thereof, auxiliary spring means engaging one side of said piston and urging the same to move in a sense tending to retract said piston rod inwardly of said endwall, and an auxiliary duct communicating with said one duct and with said auxiliary cylinder at the other side of said auxiliary piston for displacing the same under the influence of pressure in said one duct in a sense effecting advancement of said piston rod outwardly of said endwall.
Landscapes
- Devices For Dispensing Beverages (AREA)
Abstract
The invention relates to a device for charging a gas under pressure, such as carbon dioxide, into containers such as barrels containing beer or other drinks. The device avoids the possibility of the control valve being blocked or jammed by the formation of frost and/or ice caused by the expansion of the gas, by providing a gas expansion chamber removed from said valve, whereby the frost of ice formed therein will not prevent the normal operation of the movable parts of the valve.
Description
United States Patent DEVICE FOR CHARGING A CONTAINER WITH GAS UNDER PRESSURE 6 Claims, 5 Drawing Figs.
U.S. Cl 137/557, l 3 7/5 05 .22 Int. Cl ..F16k 37/00, 605d 7/00 Field of Search 1 37 /557,
[56] References Cited UNITED STATES PATENTS 1,725,679 8/1929 Stein 137/50522 3,031,165 4/1962 Allen 137/557x 3,104,679 9/1963 Gouirand l37/557X FOREIGN PATENTS 618,239 12/1926 France 137/50522 1,106,136 5/1961 Germany 137/50522 Primary Examiner-Henry T. Klinksiek Att0rneyJecies and Greenside ABSTRACT: The invention relates to a device for charging a gas under pressure, such as carbon dioxide, into containers such as barrels containing beer or other drinks. The device avoids the possibility of the control valve being blocked or jammed by the formation of frost and/or ice caused by-the ex pansion of the gas, by providing a gas expansion chamber removed from said valve, whereby the frost of ice formed therein will not prevent the normal operation of the movable parts of the valve.
PATENT EDJAM 1 21971 SHEET 1 BF 2 His INVENT OR Jose Debenodctto ATTORNEY5' PATENT ED JAN 1 219m m 2 [IF 2 y r v I 3 W 0 /I f U 2 I z r z a K I z v 9 6. Z 7///// l i m v 5 m w INVENT OR His ATTORNEY DEVICE FOR CHARGING A CONTAINER WITH GAS UNDERPRESSURE This invention relates to a devicefor Charging a container with gas under pressure. e The device of this invention is particularly well adapted for controlling the charge of a gas under' pressure, such as carbon dioxide, into containers such as barrels containing beer or other drinks which are dispensed with a gas included therein.
The improved device in accordance with the invention is of the type comprising a body having a-fluid pressure inlet conduit, an outletconduit connectable to the container to be charged, and a valve responsive to high pressure, interposed between both conduits and capable of blocking the communication therebetween. i
Generally, the devices of the aforesaid type have certain v drawbacks when usedfor regulating the ingress of carbon dioxide into barrels, for example, inasmuch as upon expanding said gas causes a considerable lowering of the temperature within the zone of the expansion. This will in turn cause the formation of frost and/or ice which will within a short time prevent the operation of the movable members of the control valve locatedwithin the zone where frost and/or ice is formed.
The above-mentioned serious problem is solved advantageously by the device of the present invention, wherein the fluid inlet conduit has the control valve interposed near the inlet proper, and said conduit extends. beyond said valve into a fluid pressure injection conduit leading into an expansion chamber which is substantially removed from the valve, said chamber being connected on the one hand to at least one outlet tube connectable to the container receiving the gas under pressure, and on the other hand said chamber is connected to a return conduit leading into a cylinder and against one face of a piston the opposite face of which is backed up by suitable pressure is created which might close the flow valve.
ln experimental teststhe device of the present invention was found to work in a most satisfactory manner-notwithstanding the fact that it was applied to-a barrel of beer wherein the. known regulating valves become jammed after a short time of continuous service.
ln order that the. invention may be more clearly understood identified by the reference numerals 7, 8 and 9 extend from the expansion chamber 6 for carrying gas to the barrels or containers holding the liquid to be charged with gas. A return duct 10 extends also from the expansion chamber 6 and opens into a cylindrical bore 11 formed in the body'l.
The bore 11 houses a piston 12 the rear side of which bears against a spring 13 the tension of which is adjustable by means of a hand-controlled screw member 14 provided with a stop 15 for limiting the axial movement thereof in both directions.
The front face of the piston 12 is permanently in engage ment with one end of a stem 16 the opposite end of which conthe section 2' of the aforesaid inlet bore duct. An expansion and readily carried into practice, one to the presently the position of the movable elements when the valve is open and the gas is being charged in a normal manner;
FIG. 4 is a view similar to FIG. 3 but showing the valve ini closedposition; and 1 i F 1G. 5 is a vertical sectional view showing the connection of the device with a pressure indicator.
The same reference characters are usedto indicate like or corresponding parts throughout the drawings.
With reference to the drawings, the I improved regulating valve is shown to comprise a body 1 having a bore 2 for the inflow of fluid under pressure. The bore 2 extends axially into an extension3 provided with means 4 for coupling same to a fluid pressure supply source, which may be a container commonly known as tube.
The inflow bore 2 communicates with an injection duct 5 which opens into an expansion chamber 6 formed in the body 1. A plurality of ducts, three in the embodiment as shown trols a valve interposed between the sections 2 and 2' of the fluid inlet bore or duct. The closing member 18 of said valve cooperates with a resilient gasket in the form of a ring 19 of elastomeric material'applied 'coaxially against the mouth of spring 20 urges the closure member 18 towards the closed position thereof.
Said stem 16, which is slideably mounted within the duct section 2', presents longitudinal flutes in the portion com prised between the closing member 18 and a position short of the end which engages the piston l2. When the valve is in open position, said flutes permit the passage of fluid from the inlet bore 2 into the injection duct 5 connected with said section 2' within which said stem 16 is slidably housed.
A branch 21 extends from the duct 2' and opens into a safety valve 22 which may be of a conventional type and "serves for releasing gas in case an overpressure is created in the device.
Extending also from the inlet duct 2' is a further branch 23 opening into a charge indicator 24 (see FIG. 5) fonned by a hollow cylinder 25 slidably'housing therein a piston 26 and 27 of which extends through the end wall 28 of the cylinder 25. A spring 29 is in permanent engagement with the piston 26 and tends to maintain the rod 27 within the cylinder bore.
The operation of the-device is as follows: The fluid from a supply source, not shown, enters the device through the duct 2 (see FIG. 3) passes through the valve l8 duct 2' and injection duct 5, into the expansion and distribution chamber 6. The fluid will then pass through the branch ducts 7, 8 and9 into the containers containing the drink which will receive the gas.
ln order to insure a normal operation, thepressure of the inflowing gas should be determined between a minimum value and a maximum value. The minimum value should be such that the gas circulating through the ducts, particularly the branch 23 will be sufficient to maintain the piston 26 displaced and, consequently, the spring 29 compressed and the rod 27 out of the cylinder 25.
When the pressure falls, that is when the emerging end of the rod 27 is almost entirely concealed, this will indicate that the charge in the supply source has been consumed and should should be substituted.
Conversely, when the pressure is too high, the gas circulating through the duct 10 and entering the chamber 11 will excessively high or when due to some damage the above men--.
tioned elements fail to operated, the safety valve 22 will then; act to release the gas to the atmosphere.
lt is important to note that the expansion of the gas entering the device takes place within the'chamber 6 and, therefore,
the formationof frost and/or ice will not affect the movable.
parts of the control mechanism which are actuated by gas which has already expanded and, therefore, absorbed'heat which is thecause of the formation of frost or ice that is responsible for the blocking or jamming of the control valve elements.
While a specific embodiment of theinvention has. been described and illustrated, it will be understood that many I changes and/or modificationswill occur to those skilled in the 'art, without departing from the scope of'the invention as clearly set forth in the appended claims.
I claim: 1. A device for charging a container with pressurized gaseous fluid, comprising;
a housing element;
a gas supply duct having an inlet for gaseous fluid under 5 pressure, an outlet remote from said inlet and an expansion chamber adjacent to and communicating with said outlet and remote from said inlet;
normally closed valve means in said supply duct adjacent said inlet and movable to open position in response to entry of gaseous fluid under a given pressure through said inlet;
first spring means permanently biasing said valve means to closed position with a first force;
control means in said housing element, including a cylinder and a piston movable therein between a first position and a second position in which latter it engages and maintains said valve means in said open position thereof;
second spring means engaging one side of said piston and permanently biasing the same to said second position with a second force greater than said first force; and
a control duct communicating with said chamber and with said cylinder at the other side of said piston so that the latter is displaced to said first position against said second spring means in response to a predetermined increase in said pressure.
2. A device as defined in claim 1, further comprising a plucharged.
3. A device as defined in claim I. further comprising at least one outlet tube communicating with said chamber and adapted to be connected with a container which is to be charged.
4. A device as defined in claim 1, said piston including a piston rod projecting from said other side and engaging said valve means.
5. A device as defined in claim 1, further comprising a source of gaseous fluid under pressure communicating with said inlet; and indicating means carried by said housing element and operative for indicating the pressure of gaseous fluid in said source as a function of pressure in at least one of said ducts.
6. A device as defined in claim 5, said indicating means comprising an auxiliary cylinder having an exposed end wall, an auxiliary piston movably accommodated in said auxiliary cylinder, a piston rod carried by said piston and slidably projecting through said endwall for observation exteriorly thereof, auxiliary spring means engaging one side of said piston and urging the same to move in a sense tending to retract said piston rod inwardly of said endwall, and an auxiliary duct communicating with said one duct and with said auxiliary cylinder at the other side of said auxiliary piston for displacing the same under the influence of pressure in said one duct in a sense effecting advancement of said piston rod outwardly of said endwall.
Claims (6)
1. A device for charging a container with pressurized gaseous fluid, comprising; a housing element; a gas supply duct having an inlet for gaseous fluid under pressure, an outlet remote from said inlet and an expansion chamber adjacent to and communicating with said outlet and remote from said inlet; normally closed valve means in said supply duct adjacent said inlet and movable to open position in response to entry of gaseous fluid under a given pressure through said inlet; first spring means permanently biasing said valve means to closed position with a first force; control means in said housing element, including a cylinder and a piston movable therein between a first position and a second position in which latter it engages and maintains said valve means in said open position thereof; second spring means engaging one side of said piston and permanently biasing the same to said second position with a second force greater than said first force; and a control duct communicating with said chamber and with said cylinder at the other side of said piston so that the latter is displaced to said first position against said second spring means in response to a predetermined increase in said pressure.
2. A device as defined in claim 1, further comprising a plurality of outlet tubes each communicating with said chamber and adapted to be connected with a container which is to be charged.
3. A device as defined in claim 1, further comprising at least one outlet tube communicating with said chamber and adapted to be connected with a container which is to be charged.
4. A device as defined in claim 1, said piston including a piston rod projecting from said other side and engaging said valve means.
5. A device as defined in claim 1, further comprising a source of gaseous fluid under pressure communicating with said inlet; and indicating means carried by said housing element and operative for indicating the pressure of gaseous fluid in said source as a function of pressure in at least one of said ducts.
6. A device as defined in claim 5, said indicating means comprising an auxiliary cylinder having an exposed end wall, an auxiliary piston movably accommodated in said auxiliary cylinder, a piston rod carried by said piston and slidably projecting through said endwall for observation exteriorly thereof, auxiliary spring means engaging one side of said piston and urging the same to move in a sense tending to retract said piston rod inwardly of said endwall, and an auxiliary duct communicating with said one duct and with said auxiliary cylinder at the other side of said auxiliary Piston for displacing the same under the influence of pressure in said one duct in a sense effecting advancement of said piston rod outwardly of said endwall.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AR21379668 | 1968-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3554225A true US3554225A (en) | 1971-01-12 |
Family
ID=3461559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US789472A Expired - Lifetime US3554225A (en) | 1968-04-25 | 1969-01-07 | Device for charging a container with gas under pressure |
Country Status (3)
Country | Link |
---|---|
US (1) | US3554225A (en) |
BR (1) | BR6906001D0 (en) |
DE (1) | DE1903119A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4794949A (en) * | 1986-10-14 | 1989-01-03 | Kabushiki Kaisha Neriki | Valve with residual pressure indicator for portable oxygen inhalant cylinder |
US5218995A (en) * | 1992-08-06 | 1993-06-15 | Lee Shih Ping | Three-way valve assembly with water quantity recording meter for a storage tank of the reverse osmosis water purifier |
US6530396B1 (en) | 2001-05-11 | 2003-03-11 | Donald D. Frey | Valve coupler for delivering air into a propane tank |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR618239A (en) * | 1926-06-30 | 1927-03-05 | Steam regulator | |
US1725679A (en) * | 1925-03-13 | 1929-08-20 | Gen Electric | Throttling arrangement for conduits |
DE1106136B (en) * | 1957-08-23 | 1961-05-04 | Biro Guy Dion | Membrane-controlled pressure reducing device for containers for compressed gases, liquids or the like. |
US3031165A (en) * | 1960-04-20 | 1962-04-24 | George R Allen | Dispensing valve for pressurized container |
US3104679A (en) * | 1960-04-07 | 1963-09-24 | Gouirand Rene | Means for controlling pressures in pneumatic suspension cushions of a tractor-trailer combination |
-
1969
- 1969-01-07 US US789472A patent/US3554225A/en not_active Expired - Lifetime
- 1969-01-22 DE DE19691903119 patent/DE1903119A1/en active Pending
- 1969-01-30 BR BR206001/69A patent/BR6906001D0/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1725679A (en) * | 1925-03-13 | 1929-08-20 | Gen Electric | Throttling arrangement for conduits |
FR618239A (en) * | 1926-06-30 | 1927-03-05 | Steam regulator | |
DE1106136B (en) * | 1957-08-23 | 1961-05-04 | Biro Guy Dion | Membrane-controlled pressure reducing device for containers for compressed gases, liquids or the like. |
US3104679A (en) * | 1960-04-07 | 1963-09-24 | Gouirand Rene | Means for controlling pressures in pneumatic suspension cushions of a tractor-trailer combination |
US3031165A (en) * | 1960-04-20 | 1962-04-24 | George R Allen | Dispensing valve for pressurized container |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4794949A (en) * | 1986-10-14 | 1989-01-03 | Kabushiki Kaisha Neriki | Valve with residual pressure indicator for portable oxygen inhalant cylinder |
AU585176B2 (en) * | 1986-10-14 | 1989-06-08 | Kabushiki Kaisha Neriki | Valve with residual pressure indicator for portable oxygen cylinder |
US5218995A (en) * | 1992-08-06 | 1993-06-15 | Lee Shih Ping | Three-way valve assembly with water quantity recording meter for a storage tank of the reverse osmosis water purifier |
US6530396B1 (en) | 2001-05-11 | 2003-03-11 | Donald D. Frey | Valve coupler for delivering air into a propane tank |
Also Published As
Publication number | Publication date |
---|---|
BR6906001D0 (en) | 1973-01-30 |
DE1903119A1 (en) | 1969-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3648893A (en) | Safety closure for high pressure gas tanks | |
US4188971A (en) | Fluid cutout valve | |
US2996074A (en) | Fluid pressure actuated shut-off valve | |
US20050022873A1 (en) | Self-operated protection device for pipeline | |
EP1354159A1 (en) | Sprinkler alarm test and drainage device for fire protection systems | |
US5209253A (en) | Emergency shutoff valve and regulator assembly | |
US3516434A (en) | Lock type excess flow valve | |
US2827122A (en) | Fire extinguisher | |
US3554225A (en) | Device for charging a container with gas under pressure | |
US3400735A (en) | Pressure regulating release valve | |
US3709255A (en) | High pressure valves | |
US3024044A (en) | Pressurizing apparatus | |
US2902046A (en) | Balanced pilot valve | |
US3490473A (en) | Flare operated valve | |
CS218582B2 (en) | Overpressure valve for hydraulic elements of the mine support mainly for the anthracite mines | |
US3095899A (en) | Liquid outage connection | |
US3757810A (en) | Shear valve and frangible fitting | |
US3098500A (en) | Broken discharge line indicator | |
GB2050577A (en) | Changeover Device for Pressurised Fluid Containers | |
US3892253A (en) | Shear valve with frangible fitting | |
US2759487A (en) | Relief valve | |
US2730179A (en) | Valve for fire extinguisher | |
US4510964A (en) | Valve for pressurized cylinders for liquified gas | |
US3212520A (en) | Swing type check valve with internal relief valve | |
US2967541A (en) | Liquefied gas filler valve assembly |