US3810485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive charge actuated valve
Assignee: Dynamit Nobel AG
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Filing: 1972-05-05
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Granted: 1974-05-14
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Expires: 1992-05-05
Abstract
Abstract An explosive charge actuated pressure valve which combines the features of a self-sealing poppet valve with the advantages of a rupturing diaphragm by providing a sealing element connected to a piston and biased in the closed position against a valve seat disposed in the passage between an inlet opening and an outlet opening, the sealing element being connected to a piston in a chamber which is in communication with an explosive charge capable upon ignition of driving the sealing element against the valve seat with a force sufficient to rupture the sealing element to open the passage between the inlet and outlet openings.
Inventors
- 👤 H Gawlick
- 👤 H Bendler
- 👤 K Flach
- 👤 G Gottwald
- 👤 G Hubsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/40; F16K13/00; F16K13/04; F16K13/06; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1789
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
149 words
An explosive charge actuated pressure valve comprising a housing having a pressure passage extending between an inlet opening and an outlet opening, a sealing element substantially completely spanning the cross section of said passage, said housing having a chamber in which is disposed a piston connected to one end of a connecting rod extending through a partition wall of said housing and being connected to said sealing element, and an explosive charge device mounted in said housing in communication with an expansible chamber defined by said housing, said piston and said partition wall, said sealing element being provided with a rupturing zone and so disposed in a valve seat in said passage that upon ignition of said explosive charge device said sealing element is forceD against said valve seat with a force capable of destroying said rupturing zone to permit translation of said sealing element past said outlet opening.
Claim 2
Dependent Claim
149 words
An explosive charge actuated pressure valve comprising a housing having a pressure passage extending between an inlet opening and an outlet opening, a sealing element substantially completely spanning the cross section of said passage, said housing having a chamber in which is disposed a piston connected to one end of a connecting rod extending through a partition wall of said housing and being connected to said sealing element, and an explosive charge device mounted in said housing in communication with an expansible chamber defined by said housing, said piston and said partition wall, said sealing element being provided with a rupturing zone and so disposed in a valve seat in said passage that upon ignition of said explosive charge device said sealing element is forceD against said valve seat with a force capable of destroying said rupturing zone to permit translation of said sealing element past said outlet opening.
Claim 3
Dependent Claim
49 words
A valve according to claim 1, wherein said partition wall includes a recess surrounding said connecting rod having a size capable of receiving said sealing element so that in the triggered condition the entire flow path between the inlet opening and the outlet opening is free of any elements.
Claim 4
Dependent Claim
21 words
A valve according to claim 2 wherein a deformable damping element is disposed in said recess and surrounds said connecting rod.
Claim 5
Dependent Claim
19 words
A valve according to claim 1 wherein said sealing element is provided in the form of a valve cone.
Claim 6
Dependent Claim
32 words
A valve according to claim 4 wherein said valve seat is disposed in said passage, and further including spring means for biasing said valve cone into sealing contact with said valve seat.
Claim 7
Dependent Claim
23 words
A valve according to claim 1 wherein said rupturing zone is fashioned as an annular notch in one surface of said sealing element.
Claim 8
Dependent Claim
31 words
A valve according to claim 1 wherein a spring is disposed in the space between said piston and said partition wall to bias said sealing element into the closed position thereof.
Claim 9
Dependent Claim
21 words
A valve according to claim 1 wherein said explosive charge device is mounted in a plug threadedly engaged in said housing.
Claim 10
Dependent Claim
23 words
A valve according to claim 8 wherein said rupturing zone is fashioned as an annular notch in one surface of said sealing element.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |