US1871535A - Valve - Google Patents
Valve Download PDFInfo
- Publication number
- US1871535A US1871535A US1871535DA US1871535A US 1871535 A US1871535 A US 1871535A US 1871535D A US1871535D A US 1871535DA US 1871535 A US1871535 A US 1871535A
- Authority
- US
- United States
- Prior art keywords
- port
- diaphragm
- valve
- base portion
- pressure
- 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 description 30
- 230000001105 regulatory Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 102100017923 ACOT12 Human genes 0.000 description 2
- 101710008266 ACOT12 Proteins 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/027—Regulating fuel supply conjointly with air supply using mechanical means
-
- 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
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2559—Self-controlled branched flow systems
- Y10T137/2574—Bypass or relief controlled by main line fluid condition
- Y10T137/2605—Pressure responsive
- Y10T137/2612—Common sensor for both bypass or relief valve and other branch valve
-
- 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
- Y10T137/7835—Valve seating in direction of flow
- Y10T137/7836—Flexible diaphragm or bellows reactor
-
- 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
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86509—Sequentially progressive opening or closing of plural ports
Definitions
- This invention relates to a Huid pressure equalizing valve member and more partlcularly to valve members for the regulation of the flow of liquid fuel to a burner, especially an oil burner of the pressure atomlzing type.
- An object of the invention is to produce a valve member which regulates and maintams a predetermined pump pressure and controls the iow of fluid to a nozzle or other device within predetermined limits.
- a further object is to produce a valve member which will maintain a constant pressure over a period of time even though the pump should wear and lose its normal pumping capacity, or, in other words, so long .as the pump has a capacity equal to the orllice or nozzle capacity.
- a further object is to produce a valve member which permits the obtaining of both the above mentioned objects by a readily accessible single adjustment means which duly controls the opening pressure and the bypass pressure.
- a further object is to construct a valve member of such design that any sediment collectedwill settle in a portion of the device where it will not hinder operation and which may be easily cleaned or flushed by entrance through an aperture normally closed by means of a plug.
- Figure 1 is a section view through the center of the valve
- Figure 2 is a section view of the base portion of the valve taken through the center at ight angles to the view shown in Fig. 1;
- Figure 3 is a top plan view of the base portion as it appears after removal of the cap portion and the diaphragm.
- the valve is preferably cylindrical and is com posed essentially of a base portion 1, a cap portion A2 and a diaphragm 3, each hereinafter further described.
- Thebase ortion is constructed with five ports 4, 5, 6, and 8, all of which are threaded at their outer ends as indicated by numerals 9 to 13.
- Inlet port 4 is adapted for connection to the high pressure side of a pump or other fluid delivery device (not shown) and communicates with a deep annular groove 14 situated in the face of said base portion as indicated at 15.
- a pressure gauge (not shown) is attached 6 connection to a nozzle or other fluid outlet and communicates at its inner end in two small orifices 17 with the small annular groove 19 concentric with respect to groove 14 and also in the face of the base portion 1.
- Port 7 is a by-pass port situated opposite outlet port 6 whereby fluid under excess pressure may be led to the low pressure side of the aforementioned pump, in a manner later to be described. rIhis port communicates with the face of the base section 1 substantially at the center and within the annular grooves 14 and 19.
- Port 8 communicates with port 7 as illustrated and is provided with a removable plug 20
- the base portion l is provided with a mounting bracket 21 with slots 22. It is obvious that other means may be provided for supporting the device, and that the disj closed means may be an extension from the cap 2 rather than from the base portion 1.
- the cap portion 2 comprises a cylindrical casing 23 having an annular flange 24 adapted to be attached to the base portion 1 by means o f several machine screws 25. Vithin 9 the caslng,
- Cap 28 is slightly rounded at its bottom face as at 29 and yieldingly rests upon the diaphragm 3. Likewise the inside edge of said annular flange 24 is rounded as at 30.
- a pressure adjusting screw 31 threaded into the top of the casing 2.
- An acorn nut 32 is provided to cover the screw 31.
- the flexible diaphra in 3 is situated between the base 1 and t e cap 2 and is held against the face of base 1 b means of the screws 25. It is composed o an upper sheet preferably of metal such as phosphor bronze and a lower sheet of a resilient composition which is impervious or substantially impervious to the fluid passing through the valve.
- the diaphragm 3 is a single valve member serving to control flow of liuid through cach of the ports 4, 6 and 7 and that the rim portions of the grooves 14 and 19 at the face of the base 1 and the inlet end of the port 7 each serve as valve seats.
- any pressure can be obtained at the nozzle by merely adjusting the force of the diaphragm against the face of the base portion 1 by means of adjustment screw 31.
- a fluid pressure regulating valve having inlet, outlet and by-pass ports, valve seats associated with said outlet and by-p-ass ports, a iexible diaphragm constituting a valve member so situated with respect to said ports as to permit flow from said inlet port to said outlet port only while said incoming fluid is at a pressure above a predetermined amount and to permit flow through said by-pass port only while excess pressure conditions prevail, and adjustable spring means for yieldingly holding said diaphragm against said seats.
- a base portion inc uding an inlet passage communicating with an annular groove in said base portion, an outlet passage communicating with a second annular groove concentrically disposed with respect to said first mentioned groove and a by-pass passage having its inlet end positioned within said annular grooves, and a iexible diaphragm yieldingly positioned against the face of said grooves and said inlet end of said by-pass passage.
- valve according to claim 2 in which said diaphragm is composed of two sheets, one of a metallic nature and the other of a resilient nature.
- a valve according to claim 2 wherein in eans is provided for yieldingly holding said diaphragm -against said grooves and said inlet end of said by-pass passage.
- a valve according to claim 2 wherein an adjustable compression sprin means -is provided for holding said diap ragni against said grooves and said by-pass passa
- a fluid pressure regulating vaIiie comprising a base portion including inlet, outlet and by-pass ports opening therein, a flexible diaphragm, and a cap ortion enclosin adjustable means to yiel ngly press sai diaphragm against said ports.
- a fluid pressure regulating valve comprising a cylindrical base rtion having an inlet and an outlet port in communication with grooves in a face of said base portion and a by-pass port also opening into said face of said base portion, a iexible diaphragm and a cap member adapted to yield- ⁇ ingly hold said diaphragm against said grooves and said by-pass port.
- a fluid pressure regulating valve coinprising a base portion aving in its upper face two annular concentric grooves and the inner end of a by-pass port, an inlet port in communication with said outer groove and an outlet port in communication with said inner groove, a flexible diaphragm and a cap portion adapted for attachment tol said base portion and to hold said diaphragm against the said upper face of said base portion.
- a fiuid pressure re lating valve comprising a base portion aving in its upper ace an annular groove in communication with an inlet port, a second annular groove within said first mentioned groove in communication with an outlet port, of less capacity than said first mentioned groove, and the inlet end of a by-pass port a exible diaphragm including a sheet of resilient material and a cap portion so positioned as to yieldingly hold said diaphragm against said grooves and said by-pass port.
- a fluid pressure regulating valve coinprising a base portion an upper cap portion and a diaphragm therebetween, said base portion including an inlet port and a port for insertion of a pressure gauge both communieating with an annular groove centrally located at the top of said base portion, an outlet port communicating with a second groove concentrically.
- a by-pass port communicating with the top of said base portion at a point within said annular grooves, and a cleanout ⁇ port .
- said cap portion including an annular iange adapted for securing said diaphragm and for attachment to said base portion, and an adjustable compression spring adapted to exert pressure on said diaphragm in a direction tending to maintain said diaphragm in contact with said base portion, said diaphragm including an upper flexible metallic Sheet and a lower sheet of an impervious resilient material.
- a fluid pressure regulating valve having inlet, outlet and by-pass ports, a boss formed on the base portion of said valve, said by-pass port being disposed centrally of said boss, an annular groove formed in said boss and adapted to surround said by-pass port, said outlet port opening into said groove, valve seating surfaces on said boss surrounding said by-pass port and said groove, a ilexible diaphragm adapted to cooperate with said valve seats to close said ports, and adjustable spring means for yieldingly holding said diaphragm against said seats but to allow the diaphragm to flex so as to permit flow through said outlet port only While the incoming fluid is at a pressure above a predetermined amount, and to allow further flexing to permit iloW through said centrally located by-pass port beyond a further predetermined pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Safety Valves (AREA)
Description
AU8- 16, 1932- E. J. LATTNER 1,871,535
VALVE Filed Aug. l5. 1930 Patented Aug. 16, 1932 PATENT OFFICE EMERT J'. LATTNEB, 0F CEDAR RAPIDS, IOWA VALVE Application filed August 15, 1930. Serial N0. 475,404.
This invention relates to a Huid pressure equalizing valve member and more partlcularly to valve members for the regulation of the flow of liquid fuel to a burner, especially an oil burner of the pressure atomlzing type.
An object of the invention is to produce a valve member which regulates and maintams a predetermined pump pressure and controls the iow of fluid to a nozzle or other device within predetermined limits.
A further object is to produce a valve member which will maintain a constant pressure over a period of time even though the pump should wear and lose its normal pumping capacity, or, in other words, so long .as the pump has a capacity equal to the orllice or nozzle capacity.
A further object is to produce a valve member which permits the obtaining of both the above mentioned objects by a readily accessible single adjustment means which duly controls the opening pressure and the bypass pressure.
A further object is to construct a valve member of such design that any sediment collectedwill settle in a portion of the device where it will not hinder operation and which may be easily cleaned or flushed by entrance through an aperture normally closed by means of a plug.
Other and further objects and features of novelty will be apparent from the following specification when read in connection with the accompanying drawing in which one em:
bodiment is illustrated by In the drawing:
Figure 1 is a section view through the center of the valve;
Figure 2 is a section view of the base portion of the valve taken through the center at ight angles to the view shown in Fig. 1; an
way of example.
Figure 3 is a top plan view of the base portion as it appears after removal of the cap portion and the diaphragm.
Referring to the drawing in detail, the valve is preferably cylindrical and is com posed essentially of a base portion 1, a cap portion A2 and a diaphragm 3, each hereinafter further described.
Thebase ortion is constructed with five ports 4, 5, 6, and 8, all of which are threaded at their outer ends as indicated by numerals 9 to 13. Inlet port 4 is adapted for connection to the high pressure side of a pump or other fluid delivery device (not shown) and communicates with a deep annular groove 14 situated in the face of said base portion as indicated at 15.
A pressure gauge (not shown) is attached 6 connection to a nozzle or other fluid outlet and communicates at its inner end in two small orifices 17 with the small annular groove 19 concentric with respect to groove 14 and also in the face of the base portion 1.
Port 7 is a by-pass port situated opposite outlet port 6 whereby fluid under excess pressure may be led to the low pressure side of the aforementioned pump, in a manner later to be described. rIhis port communicates with the face of the base section 1 substantially at the center and within the annular grooves 14 and 19.
The cap portion 2 comprises a cylindrical casing 23 having an annular flange 24 adapted to be attached to the base portion 1 by means o f several machine screws 25. Vithin 9 the caslng,
there is a compression spring, preferably of steel, supported between two cylindrical buttons 27 and 28, preferably of brass, adapted for vertical movement within the cap 2. Cap 28 is slightly rounded at its bottom face as at 29 and yieldingly rests upon the diaphragm 3. Likewise the inside edge of said annular flange 24 is rounded as at 30.
Above said button 27 and in contact therewith is a pressure adjusting screw 31 threaded into the top of the casing 2. An acorn nut 32 is provided to cover the screw 31.
The flexible diaphra in 3 is situated between the base 1 and t e cap 2 and is held against the face of base 1 b means of the screws 25. It is composed o an upper sheet preferably of metal such as phosphor bronze and a lower sheet of a resilient composition which is impervious or substantially impervious to the fluid passing through the valve.
It should be noted that the diaphragm 3 is a single valve member serving to control flow of liuid through cach of the ports 4, 6 and 7 and that the rim portions of the grooves 14 and 19 at the face of the base 1 and the inlet end of the port 7 each serve as valve seats.
When the valve is in operation as in an oil line leading to a nozzle in an oil burner, the oil is forced by means of a pump into the inlet port 4 and passes through the orifice or opening 15 into annular groove 14. The fluid pressure is indicated by a pressure gauge inserted in port 5 in communication with roove 14. When the pressure reaches a predetermined amount, the diaphragm is lifted to a certain extent b lthe oil which passes over the inside rim o groove 14 into groove 19 from whence it travels through port 6 to the nozzle. If the pressure is in excess of that desired, a portion of the oil will pass over the inside rim of groove 19 into the bypass port 7 and finally back to the inlet side of the pump or to the storage tank. In this manner a constant pressure isautomatically maintained at the nozzle.
Within the pressure range of the pump, any pressure can be obtained at the nozzle by merely adjusting the force of the diaphragm against the face of the base portion 1 by means of adjustment screw 31.
Having thus described the invention, what is claimed as -new andddesired to be secured by Letters Patent is:
1. In a fluid pressure regulating valve having inlet, outlet and by-pass ports, valve seats associated with said outlet and by-p-ass ports, a iexible diaphragm constituting a valve member so situated with respect to said ports as to permit flow from said inlet port to said outlet port only while said incoming fluid is at a pressure above a predetermined amount and to permit flow through said by-pass port only while excess pressure conditions prevail, and adjustable spring means for yieldingly holding said diaphragm against said seats.
2. In a fluid pressure regulatin valve, inl combination, a base portion inc uding an inlet passage communicating with an annular groove in said base portion, an outlet passage communicating with a second annular groove concentrically disposed with respect to said first mentioned groove and a by-pass passage having its inlet end positioned within said annular grooves, and a iexible diaphragm yieldingly positioned against the face of said grooves and said inlet end of said by-pass passage.
53. valve according to claim 2 in which said diaphragm is composed of two sheets, one of a metallic nature and the other of a resilient nature.
4. A valve according to claim 2 wherein in eans is provided for yieldingly holding said diaphragm -against said grooves and said inlet end of said by-pass passage.
5. A valve according to claim 2 wherein an adjustable compression sprin means -is provided for holding said diap ragni against said grooves and said by-pass passa A fluid pressure regulating vaIiie comprising a base portion including inlet, outlet and by-pass ports opening therein, a flexible diaphragm, and a cap ortion enclosin adjustable means to yiel ngly press sai diaphragm against said ports.
7. A fluid pressure regulating valve, comprising a cylindrical base rtion having an inlet and an outlet port in communication with grooves in a face of said base portion and a by-pass port also opening into said face of said base portion, a iexible diaphragm and a cap member adapted to yield- `ingly hold said diaphragm against said grooves and said by-pass port.
8. A fluid pressure regulating valve, coinprising a base portion aving in its upper face two annular concentric grooves and the inner end of a by-pass port, an inlet port in communication with said outer groove and an outlet port in communication with said inner groove, a flexible diaphragm and a cap portion adapted for attachment tol said base portion and to hold said diaphragm against the said upper face of said base portion.
i?. A fiuid pressure re lating valve, comprising a base portion aving in its upper ace an annular groove in communication with an inlet port, a second annular groove within said first mentioned groove in communication with an outlet port, of less capacity than said first mentioned groove, and the inlet end of a by-pass port a exible diaphragm including a sheet of resilient material and a cap portion so positioned as to yieldingly hold said diaphragm against said grooves and said by-pass port. v
10. A valve according to claim 9 wherein said cap portion includes an adjustable compression spring. y
11. A fluid pressure regulating valve, coinprising a base portion an upper cap portion and a diaphragm therebetween, said base portion including an inlet port and a port for insertion of a pressure gauge both communieating with an annular groove centrally located at the top of said base portion, an outlet port communicating with a second groove concentrically. locate within said first groove, a by-pass port communicating with the top of said base portion at a point within said annular grooves, and a cleanout` port .provided with a plug, communicating with said by-pass port, said cap portion including an annular iange adapted for securing said diaphragm and for attachment to said base portion, and an adjustable compression spring adapted to exert pressure on said diaphragm in a direction tending to maintain said diaphragm in contact with said base portion, said diaphragm including an upper flexible metallic Sheet and a lower sheet of an impervious resilient material.
l2. In a fluid pressure regulating valve having inlet, outlet and by-pass ports, a boss formed on the base portion of said valve, said by-pass port being disposed centrally of said boss, an annular groove formed in said boss and adapted to surround said by-pass port, said outlet port opening into said groove, valve seating surfaces on said boss surrounding said by-pass port and said groove, a ilexible diaphragm adapted to cooperate with said valve seats to close said ports, and adjustable spring means for yieldingly holding said diaphragm against said seats but to allow the diaphragm to flex so as to permit flow through said outlet port only While the incoming fluid is at a pressure above a predetermined amount, and to allow further flexing to permit iloW through said centrally located by-pass port beyond a further predetermined pressure.
In testimony whereof I hereunto aiix my signature.
EMERT J. LATTNER.
Publications (1)
Publication Number | Publication Date |
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US1871535A true US1871535A (en) | 1932-08-16 |
Family
ID=3423977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US1871535D Expired - Lifetime US1871535A (en) | Valve |
Country Status (1)
Country | Link |
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US (1) | US1871535A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2416855A (en) * | 1943-11-09 | 1947-03-04 | Phillips Petroleum Co | High-pressure diaphragm relief valve |
US2508344A (en) * | 1948-08-13 | 1950-05-16 | Bendix Westinghouse Automotive | Fluid pressure governor |
US2636440A (en) * | 1949-07-25 | 1953-04-28 | Waukesha Foundry Co | Sanitary pump with infinitely variable output |
US2638121A (en) * | 1948-05-11 | 1953-05-12 | Detroit Controls Corp | Control device |
US2639194A (en) * | 1950-12-21 | 1953-05-19 | Spraying Systems Co | Antidrip valve for spray nozzles |
US2686533A (en) * | 1949-04-28 | 1954-08-17 | Gratzmuller Jean Louis | Diaphragm type safety valve |
US2888947A (en) * | 1954-11-10 | 1959-06-02 | M & F Mfg Co | Regulating valve |
US2905431A (en) * | 1953-09-11 | 1959-09-22 | Jas P Marsh Corp | Valve |
US3520321A (en) * | 1967-12-20 | 1970-07-14 | Mojonnier Bros Co | Venting valve for a beverage filler |
US4090526A (en) * | 1975-04-07 | 1978-05-23 | Mojonnier Bros. Co. | Gas pressure stabilizer system and valve |
US4143673A (en) * | 1975-06-17 | 1979-03-13 | Ab Kalle-Regulatorer | Pressure regulator |
US4182366A (en) * | 1976-01-08 | 1980-01-08 | Boehringer John R | Positive end expiratory pressure device |
US4516601A (en) * | 1981-04-30 | 1985-05-14 | Bennes Marrel | Mining cylinder hydraulic slide valve |
US4625695A (en) * | 1985-03-28 | 1986-12-02 | Walbro Corporation | Fuel pressure regulator |
US20040158210A1 (en) * | 2002-02-23 | 2004-08-12 | Stryker Instruments | Two site infusion apparatus |
US20130178752A1 (en) * | 2011-04-11 | 2013-07-11 | Omron Healthcare Co., Ltd. | Valve, fluid control device |
EP4137723A4 (en) * | 2020-07-02 | 2024-04-24 | Nippon Thermostat Co., Ltd. | Relief valve and cooling circuit using same |
-
0
- US US1871535D patent/US1871535A/en not_active Expired - Lifetime
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2416855A (en) * | 1943-11-09 | 1947-03-04 | Phillips Petroleum Co | High-pressure diaphragm relief valve |
US2638121A (en) * | 1948-05-11 | 1953-05-12 | Detroit Controls Corp | Control device |
US2508344A (en) * | 1948-08-13 | 1950-05-16 | Bendix Westinghouse Automotive | Fluid pressure governor |
US2686533A (en) * | 1949-04-28 | 1954-08-17 | Gratzmuller Jean Louis | Diaphragm type safety valve |
US2636440A (en) * | 1949-07-25 | 1953-04-28 | Waukesha Foundry Co | Sanitary pump with infinitely variable output |
US2639194A (en) * | 1950-12-21 | 1953-05-19 | Spraying Systems Co | Antidrip valve for spray nozzles |
US2905431A (en) * | 1953-09-11 | 1959-09-22 | Jas P Marsh Corp | Valve |
US2888947A (en) * | 1954-11-10 | 1959-06-02 | M & F Mfg Co | Regulating valve |
US3520321A (en) * | 1967-12-20 | 1970-07-14 | Mojonnier Bros Co | Venting valve for a beverage filler |
US4090526A (en) * | 1975-04-07 | 1978-05-23 | Mojonnier Bros. Co. | Gas pressure stabilizer system and valve |
US4143673A (en) * | 1975-06-17 | 1979-03-13 | Ab Kalle-Regulatorer | Pressure regulator |
US4182366A (en) * | 1976-01-08 | 1980-01-08 | Boehringer John R | Positive end expiratory pressure device |
US4516601A (en) * | 1981-04-30 | 1985-05-14 | Bennes Marrel | Mining cylinder hydraulic slide valve |
US4625695A (en) * | 1985-03-28 | 1986-12-02 | Walbro Corporation | Fuel pressure regulator |
US20040158210A1 (en) * | 2002-02-23 | 2004-08-12 | Stryker Instruments | Two site infusion apparatus |
US7267669B2 (en) * | 2002-02-23 | 2007-09-11 | Stryker Corporation | Two site infusion apparatus |
US20130178752A1 (en) * | 2011-04-11 | 2013-07-11 | Omron Healthcare Co., Ltd. | Valve, fluid control device |
US20150096638A1 (en) * | 2011-04-11 | 2015-04-09 | Murata Manufacturing Co., Ltd. | Valve, fluid control device |
US9033683B2 (en) * | 2011-04-11 | 2015-05-19 | Murata Manufacturing Co., Ltd. | Valve, fluid control device |
US9237854B2 (en) * | 2011-04-11 | 2016-01-19 | Murata Manufacturing Co., Ltd. | Valve, fluid control device |
EP4137723A4 (en) * | 2020-07-02 | 2024-04-24 | Nippon Thermostat Co., Ltd. | Relief valve and cooling circuit using same |
US12025233B2 (en) | 2020-07-02 | 2024-07-02 | Nippon Thermostat Co., Ltd. | Relief valve and cooling circuit using same |
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