WO1997005535B1 - Pneumatic valve and regulator - Google Patents
Pneumatic valve and regulatorInfo
- Publication number
- WO1997005535B1 WO1997005535B1 PCT/US1996/012278 US9612278W WO9705535B1 WO 1997005535 B1 WO1997005535 B1 WO 1997005535B1 US 9612278 W US9612278 W US 9612278W WO 9705535 B1 WO9705535 B1 WO 9705535B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- poppet
- outlet
- inlet
- pressure
- regulator
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract 5
- 238000007789 sealing Methods 0.000 claims abstract 5
- 150000001875 compounds Chemical class 0.000 claims abstract 2
- 239000013536 elastomeric material Substances 0.000 claims 2
- 238000001125 extrusion Methods 0.000 claims 2
- 239000004033 plastic Substances 0.000 claims 2
- -1 polytetrafluoroethylene ring Polymers 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052756 noble gas Inorganic materials 0.000 abstract 1
- 150000002835 noble gases Chemical class 0.000 abstract 1
Abstract
A pneumatic valve and regulator, and more particularly to a pneumatic valve and regulator used in a compressed gas powered gun system which is designed to project a fragile liquid-containing spherical unit which bursts upon impact with the intended target. The regulator possesses a pressure balancing device, a temperature compensating device, and relief valve features. The temperature compensator of the temperature compensating device is made of a synthetic compound material which expands and contracts at a rate that equals but is inverse to the rate of change caused by changes in the modulus of elasticity of a helical compression spring caused by a temperature differential. The valve possesses a seal made of pressure-activated material, the outer diameter of the seal is mechanically captured, the inner diameter of the seal is not constrained from moving into the cavity. The application of pressure then initiates flow characteristics of the seal at the interface of the inner diameter of the seal and the outer diameter of the poppet. This sealing technique has inherent lubricity, is self-healing, is non-temperature sensitive, and is compatible with all noble gases used.
Claims
1. A pneumatic pressure regulator comprising:
A. a housing having an inlet in communication with a source of pressurized air and having an outlet in communication with said inlet and a device utilizing said pressurized air;
B. a temperature compensating device in communication with at least said outlet for maintaining said air pressure at said outlet substantially constant with variations in ambient temperature; and
C. a pressure balancing device in communication with at least said inlet for maintaining said air pressure at said outlet substantially constant with pressure variations at said air source.
2. A pneumatic pressure regulator according to claim 1 wherein said temperature compensating device comprises:
A. an elastic insert comprised of a material which expands and contracts with variations in ambient temperature;
B. a retainer containing said insert and in communication with said outlet;
C. a regulator poppet cooperating with said retainer; and
D. a second spring cooperating with said poppet and said retainer for adjusting the position of said retainer to vary said air pressure at the interface between said inlet and said outlet; wherein the volume of said insert varies inversely with and at a rate substantially equal to the volume variation in said second spring caused by variations in ambient temperature such that said retainer is maintained in a substantially constant position relative to said outlet such that a substantially constant air pressure is maintained at the interface between said inlet and said outlet.
3. A pneumatic pressure regulator according to claim 2 further comprising an anti-extrusion ring separating said retainer and said insert for containing said insert within said retainer.
4. A pneumatic pressure regulator according to claim 2 further comprising a relief valve device including a third O-ring sealing said outlet such that said seal is removed by the cooperation of said retainer and said second spring when a predetermined air pressure is exceeded.
5. A pneumatic pressure regulator according to claim 2 wherein said pressure balancing device comprises :
A. a regulator seat fixed within said inlet;
B. a poppet guide located within said inlet and forming a channel for said regulator poppet and having an interior notch to accommodate an O-ring;
C. a first O-ring located within said interior notch and in sliding engagement with said poppet; and
D. a first spring cooperating with said poppet for sealing said poppet against said regulator seat; wherein said poppet has two sets of ports that are bored perpendicular to each other to extend across the diameter of said poppet; and wherein pressure variations at said air source cause the cooperation of said poppet ports with said first O-ring to force said first spring to maintain said poppet sealed against said regulator seat such that a substantially constant air pressure is maintained at the interface between said inlet and said outlet .
6. A valve for providing pressurized air from a pressure source to a device utilizing such pressurized air, which valve comprises:
A. a housing which is formed to provide an inlet and an outlet;
B. a poppet located within said outlet;
C. a plastic seal with a first surface in engagement with said poppet and a second surface fixing said seal within said outlet; and
D. a spring in cooperation with said poppet to bias said poppet against said seal first surface to prevent pressurized air from entering said outlet; wherein said valve is opened to release pressurized air to the receiving device when said poppet is moved upon the engagement of said device with said outlet .
7. A valve as in Claim 6 further comprising a safety cylinder and a burst disc attached to said inlet; wherein said burst disc is inserted and forms a seal between said inlet and said safety cylinder, and said disc bursts to release pressurized air from said inlet to said safety cylinder when a predetermined air pressure is exceeded.
8. A pressurized air gun system having a pneumatic pressure regulator wherein said regulator comprises:
A. a housing having an inlet in communication with a source of pressurized air and having an outlet in communication with said inlet and a device utilizing said pressurized air;
B. a temperature compensating device in communication with at least said outlet for maintaining said air pressure at said outlet substantially constant with variations in ambient temperature;
C. a pressure balancing device in communication with at least said inlet for maintaining said air pressure at said outlet substantially constant with pressure variations at said air source.
9. A pressurized air gun system according to Claim 8, wherein said temperature compensating device comprises:
A. an elastic insert comprised of a material which expands and contracts with variations in ambient temperature;
B. a retainer containing said insert and in communication with said outlet;
C. a regulator poppet cooperating with said retainer;
D. a second spring cooperating with said poppet and said retainer for adjusting the position of said retainer to vary said air pressure at the interface between said inlet and said outlet; wherein the volume of said insert varies inversely with and at a rate substantially equal to the volume variation in said second spring caused by variations in ambient temperature such that said retainer is maintained in a substantially constant position relative to said outlet such that a substantially constant air pressure is maintained at the interface between said inlet and said outlet .
10. A pressurized air gun system according to Claim 9 further comprising a relief valve device including a third O-ring sealing said outlet such that said seal is removed by the cooperation of said retainer and said second spring when a predetermined air pressure is exceeded.
11. A pressurized air gun system according to Claim 9 wherein said pressure balancing device comprises:
A. a regulator seat fixed within said inlet;
B. a poppet guide located within said inlet and forming a channel for said regulator poppet and having an interior notch to accommodate an O-ring;
C. a first O-ring located within said interior notch and in sliding engagement with said poppet; and
D. a first spring cooperating with said poppet for sealing said poppet against said regulator seat; wherein said poppet has two sets of ports that are bored perpendicular to each other to extend across the diameter of said poppet; and wherein pressure variations at said air source cause the cooperation of said poppet ports with said first O-ring to force said first spring to maintain said poppet sealed against said regulator seat such that a substantially constant air pressure is maintained at the interface between said inlet and said outlet.
12. A pressurized air gun system according to Claim 8 further comprising a valve for providing pressurized air from a pressure source to a device utilizing such pressurized air, wherein said valve comprises :
A. a housing which is formed to provide an inlet and an outlet;
B. a poppet located within said outlet;
C. a plastic seal with a first surface in engagement with said poppet and a second surface fixing said seal within said outlet;
D. a spring in cooperation with said poppet to bias said poppet against said seal first surface to prevent pressurized air from entering said outlet; wherein said valve is opened to release pressurized air to the receiving device when said poppet is moved upon the engagement of said device with said outlet.
13. A pressurized air gun system according to Claim 12 further comprising a safety cylinder and a burst disc attached to said inlet wherein said burst disc is inserted and forms a seal between said inlet and said safety cylinder, and said disc bursts to release pressurized air from said inlet to said safety cylinder when a predetermined air pressure is exceeded.
14. The pressure regulator of Claim 3 wherein said anti- extrusion ring is a delta shaped polytetrafluoroethylene ring.
15. The pressure regulator of Claim 3 wherein said insert is comprised of a synthetic compound material.
16. The pneumatic pressure regulator of Claim 4 wherein said third O-ring is comprised of an elastomeric material.
17. The pneumatic pressure regulator of Claim 4 wherein said first O-ring is comprised of an elastomeric material.
AMENDED SHEET {ARTICLE 19)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU66382/96A AU6638296A (en) | 1995-07-25 | 1996-07-24 | Pneumatic valve and regulator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/506,183 | 1995-07-25 | ||
| US08/506,183 US5755213A (en) | 1995-07-25 | 1995-07-25 | Pneumatic valve and regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1997005535A1 WO1997005535A1 (en) | 1997-02-13 |
| WO1997005535B1 true WO1997005535B1 (en) | 1997-03-13 |
Family
ID=24013553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1996/012278 WO1997005535A1 (en) | 1995-07-25 | 1996-07-24 | Pneumatic valve and regulator |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5755213A (en) |
| AU (1) | AU6638296A (en) |
| WO (1) | WO1997005535A1 (en) |
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-
1995
- 1995-07-25 US US08/506,183 patent/US5755213A/en not_active Expired - Fee Related
-
1996
- 1996-07-24 AU AU66382/96A patent/AU6638296A/en not_active Abandoned
- 1996-07-24 WO PCT/US1996/012278 patent/WO1997005535A1/en active Application Filing
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