US3448750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for releasing pressure of a pressurized system
Assignee: Delaware Capital Formation Inc
•
Filing: 1964-07-20
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Granted: 1969-06-10
•
Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Asbury S Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:39
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/14; F16K17/16; B; B01; B01J; B01J3/00; B01J3/002; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0396; Y10T137/1624; Y10T137/1632; Y10T137/1774
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A PRESSURE RELEASE DEVICE FOR RELEASING FLUID UNDER PRESSURE FROM AN OUTLET OF A PRESSURIZED SYSTEM COMPRISING; A FIRST RUPTURABLE DISC ADAPTED TO EXTEND ACROSS THE OUT LET FOR NORMALLY SEALING THE OUTLET, THE FIRST DISC HAVING AN INHERENT BURSTING PRESSURE LESS THAN THE PRESELECTED MAXIMUM PRESSURE OF THE SYSTEM; A SECOND RUPTURABLE DISC IN EXTERIOR SPACED CLOSED COMMUNICATION WITH THE FIRST DISC, THE SECOND DISC HAVING AN INHERENT BURSTING PRESSURE LESS THAN THE PRESELECTED MAXIMUM PRESSURE OF THE SYSTEM, THE SAID FIRST AND SECOND DISCS HAVING FLUID LOADING THEREBETWEEN SO THAT THE DIFFERENTIAL PRESSURE ACROSS THE FIRST DISC IS LESS THAN ITS INHERENT BURSTING PRESSURE; AND MEANS EFFECTIVE TO RELEASE THE FLUID LOADING BETWEEN THE DISCS SO THAT THE FIRST AND THEN THE SECOND DISC RUPTURES TO RELEASE THE PRESSURE OF THE SYSTEM THROUGH THE OUTLET.
Claim 2
Dependent Claim
137 words
A PRESSURE RELEASE DEVICE FOR RELEASING FLUID UNDER PRESSURE FROM AN OUTLET OF A PRESSURIZED SYSTEM COMPRISING; A FIRST RUPTURABLE DISC ADAPTED TO EXTEND ACROSS THE OUT LET FOR NORMALLY SEALING THE OUTLET, THE FIRST DISC HAVING AN INHERENT BURSTING PRESSURE LESS THAN THE PRESELECTED MAXIMUM PRESSURE OF THE SYSTEM; A SECOND RUPTURABLE DISC IN EXTERIOR SPACED CLOSED COMMUNICATION WITH THE FIRST DISC, THE SECOND DISC HAVING AN INHERENT BURSTING PRESSURE LESS THAN THE PRESELECTED MAXIMUM PRESSURE OF THE SYSTEM, THE SAID FIRST AND SECOND DISCS HAVING FLUID LOADING THEREBETWEEN SO THAT THE DIFFERENTIAL PRESSURE ACROSS THE FIRST DISC IS LESS THAN ITS INHERENT BURSTING PRESSURE; AND MEANS EFFECTIVE TO RELEASE THE FLUID LOADING BETWEEN THE DISCS SO THAT THE FIRST AND THEN THE SECOND DISC RUPTURES TO RELEASE THE PRESSURE OF THE SYSTEM THROUGH THE OUTLET.
References Cited (Backward Citations)
US1584523A
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US2346727A
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US2580365A
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US2788794A
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US2895492A
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US3092286A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |