Patent US3091470A successfully refreshed from Google Patents.
US3091470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure loaded bonnet assembly
Assignee: ACF Industries Inc
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Filing: 1960-07-01
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Granted: 1963-05-28
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Expires: 1980-07-01
Abstract
No abstract record available.
Inventors
- 👤 Clifford E Anderson
- 👤 Jr Louis F Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:49
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/02; Y; Y10; Y10S; Y10S277/00; Y10S277/904; Y10S277/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A CLOSURE ASSEMBLY FOR A PRESSURE VESSEL COMPRISING A PRESSURE VESSEL HAVING A CIRCULAR OPENING, A PORTION OF THE WALL OF THE OPENING FORMING A SEALING SURFACE, A CLOSURE MEMBER HAVING A SEALING SURFACE POSITIONED IN THE OPENING WITH THE SEALING SURFACE OPPOSED TO THE CYLINDRICAL SURFACE, A PRESSURE ACTUATED METAL SEALING RING POSITIONED BETWEEN THE SEALING SURFACE OF THE CLOSURE MEMBER AND THE SEALING SURFACE OF THE OPENING, RETAINING MEANS DISENGAGEABLY SECURED TO THE WALL OF THE OPENING AXIALLY OUTWARD OF THE SEALING SURFACE, SAID CLOSURE MEMBER AND SAID RETAINING MEANS HAVING SPACED OPPOSED SURFACES, MEANS FORMING A SEAL ABOUT THE PERIPHERY OF SAID OPPOSED SURFACES, A PASSAGE IN THE RETAINING MEANS COMMUNICATING WITH THE SPACE BETWEEN OPPOSED SURFACES MEANS IN SAID PASSAGE TO PERMIT THE INJECTION OF A PRESSURIZED MEDIUM FROM THE EXTERIOR TO SAID SPACE TO FORCE THE CLOSURE MEMBER AXIALLY INWARD FORMING AN INITIAL SEAL BETWEEN THE SEALING RING AND THE SURFACES IT CONTACTS.
Claim 2
Dependent Claim
158 words
A CLOSURE ASSEMBLY FOR A PRESSURE VESSEL COMPRISING A PRESSURE VESSEL HAVING A CIRCULAR OPENING, A PORTION OF THE WALL OF THE OPENING FORMING A SEALING SURFACE, A CLOSURE MEMBER HAVING A SEALING SURFACE POSITIONED IN THE OPENING WITH THE SEALING SURFACE OPPOSED TO THE CYLINDRICAL SURFACE, A PRESSURE ACTUATED METAL SEALING RING POSITIONED BETWEEN THE SEALING SURFACE OF THE CLOSURE MEMBER AND THE SEALING SURFACE OF THE OPENING, RETAINING MEANS DISENGAGEABLY SECURED TO THE WALL OF THE OPENING AXIALLY OUTWARD OF THE SEALING SURFACE, SAID CLOSURE MEMBER AND SAID RETAINING MEANS HAVING SPACED OPPOSED SURFACES, MEANS FORMING A SEAL ABOUT THE PERIPHERY OF SAID OPPOSED SURFACES, A PASSAGE IN THE RETAINING MEANS COMMUNICATING WITH THE SPACE BETWEEN OPPOSED SURFACES MEANS IN SAID PASSAGE TO PERMIT THE INJECTION OF A PRESSURIZED MEDIUM FROM THE EXTERIOR TO SAID SPACE TO FORCE THE CLOSURE MEMBER AXIALLY INWARD FORMING AN INITIAL SEAL BETWEEN THE SEALING RING AND THE SURFACES IT CONTACTS.
References Cited (Backward Citations)
US2810592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |