Patent US3330440A successfully refreshed from Google Patents.
US3330440A
Expired / Lapsed
US
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Pressure relief valve
Assignee: Calmec Manufacturing Corp
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Filing: 1965-11-01
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Granted: 1967-07-11
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Expires: 1985-11-01
Abstract
No abstract record available.
Inventors
- 👤 Stanley E Summers
- 👤 Visket Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:28
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/14; F16K17/16; F16K17/162; F16K17/1626
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A RUPTURE DISC DEVICE, A HOUSING HAVING AN INLET AND AN OUTLET, MEANS IN THE HOUSING DEFINING AN ORIFICE BETWEEN THE INLET AND OUTLET, A RUPTURE DISC MOUNTED IN SAID HOUSING UPSTREAM OF THE ORIFICE AND EXTENDING ACROSS THE ORIFICE TO CLOSE THE SAME, A RESILIENT SNAP-OVER MEMBER IN SAID HOUSING DOWNSTREAM OF THE ORIFICE, A FORCE COUPLING MEANS SUPPORTED BY THE UPSTREAM FACE OF SAID RESILIENT SNAP-OVER MEMBER, SAID SNAP-OVER MEMBER HAVING A FIRST POSITION THAT BIASES SAID FORCE COUPLING MEANS INTO SAID ORIFICE TO SUPPORT SAID DISC, SAID MEMBER BEING ADAPTED TO RAPIDLY SNAP OVER CENTER TO A RECESSED POSITION WHEN THE UPSTREAM PRESSURE EXCEEDS A SET POINT, AND MEANS FOR SUPPORTING SAID MEMBER AT ITS PERIPHERAL MARGIN AGAINST MOVEMENT DOWNSTREAM.
Claim 2
Dependent Claim
124 words
IN A RUPTURE DISC DEVICE, A HOUSING HAVING AN INLET AND AN OUTLET, MEANS IN THE HOUSING DEFINING AN ORIFICE BETWEEN THE INLET AND OUTLET, A RUPTURE DISC MOUNTED IN SAID HOUSING UPSTREAM OF THE ORIFICE AND EXTENDING ACROSS THE ORIFICE TO CLOSE THE SAME, A RESILIENT SNAP-OVER MEMBER IN SAID HOUSING DOWNSTREAM OF THE ORIFICE, A FORCE COUPLING MEANS SUPPORTED BY THE UPSTREAM FACE OF SAID RESILIENT SNAP-OVER MEMBER, SAID SNAP-OVER MEMBER HAVING A FIRST POSITION THAT BIASES SAID FORCE COUPLING MEANS INTO SAID ORIFICE TO SUPPORT SAID DISC, SAID MEMBER BEING ADAPTED TO RAPIDLY SNAP OVER CENTER TO A RECESSED POSITION WHEN THE UPSTREAM PRESSURE EXCEEDS A SET POINT, AND MEANS FOR SUPPORTING SAID MEMBER AT ITS PERIPHERAL MARGIN AGAINST MOVEMENT DOWNSTREAM.
References Cited (Backward Citations)
US2704551A
Cited
US2079164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |