US3633596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm valve
Assignee: United States Department of the Navy
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Filing: 1970-07-23
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Granted: 1972-01-11
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Expires: 1990-07-23
Abstract
Abstract A diaphragm valve for sealing a chamber which consists of a rupture disc, a hollow knife, a power spring, a power spring retainer and a bellows motor. The hollow knife is positioned by the power spring retainer adjacent to the rupture disc. A bellows motor, suitably positioned at the head end of the knife, provides the force, when initiated, to force the knife into the disc to rupture it thus permitting air to fill the chamber through the hollow knife body. The device may also be activated manually with the power spring providing the driving force to the knife.
Inventors
- 👤 Robert L Gerber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:51
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/04; Y; Y10; Y10S; Y10S137/00; Y10S137/91; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1759; Y10T137/1767
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
A diaphragm valve which comprises: a. a hollow body member having an internal chamber and a passageway; b. means within said internal chamber for positively sealing one end of the chamber from the passageway; c. a hollow knife member positioned within said internal chamber adjacent said sealing means; d. first and second independently operable actuating means for driving the hollow knife member through said sealing means to provide a fluid passageway from the chamber through the hollow knife member; e. said first independently operable actuating means comprising a power spring and a manually removable power spring retainer; and f. said second independently operable actuating means comprising an electrically activated bellows motor mounted in the hollow portion of said power spring; whereby the diaphragm valve may be activated manually by removal of the power spring retainer or electrically by passing a current through the bellows motor.
Claim 2
Dependent Claim
145 words
A diaphragm valve which comprises: a. a hollow body member having an internal chamber and a passageway; b. means within said internal chamber for positively sealing one end of the chamber from the passageway; c. a hollow knife member positioned within said internal chamber adjacent said sealing means; d. first and second independently operable actuating means for driving the hollow knife member through said sealing means to provide a fluid passageway from the chamber through the hollow knife member; e. said first independently operable actuating means comprising a power spring and a manually removable power spring retainer; and f. said second independently operable actuating means comprising an electrically activated bellows motor mounted in the hollow portion of said power spring; whereby the diaphragm valve may be activated manually by removal of the power spring retainer or electrically by passing a current through the bellows motor.
Claim 3
Dependent Claim
15 words
The diaphragm valve of claim 1 wherein the means for sealing comprises a rupture disc.
Claim 4
Dependent Claim
15 words
The diaphragm valve of claim 2 wherein the rupture disc is made of soft aluminum.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |