Patent US2235905A successfully refreshed from Google Patents.
Patent US3272470A successfully refreshed from Google Patents.
US3272470A
Expired / Lapsed
US
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Fluid flow control device
Assignee: Grove Valve and Regulator Co
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Filing: 1964-02-06
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Granted: 1966-09-13
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Expires: 1984-02-06
Abstract
No abstract record available.
Inventors
- 👤 Austin U Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:53
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/07; F16K7/075; F02; F02M; F02M47/00; F02M47/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A VALVE CONSTRUCTION COMPRISING: A HOUSING HAVING INLET AND OUTLET FLOW PASSAGES, A CIRCULAR BARRIER HAVING A PERIPHERAL CYLINDRICAL SEALING SURFACE SECURED WITHIN SAID HOUSING INTERMEDIATE SAID FLOW PASSAGES, AN EXPANSIBLE SLEEVE IN SEALED COMMUNICATION AT OPPOSITE ENDS THEREOF TO SAID FLOW PASSAGES AND SNUGLY EMBRACING THE CYLINDRICAL SEALING SURFACE OF SAID BARRIER, A RIGID SLEEVE SURROUNDING SAID EXPANSIBLE SLEEVE IN CLOSELY SPACED RELATIONSHIP THERETO SO THAT THE INNER SURFACE OF SAID RIGID SLEEVE LIMITS RADIAL EXPANSION OF SAID EXPANSIBLE SLEEVE, SAID RIGID SLEEVE HAVING AT LEAST ONE APERTURE THERETHROUGH, HAVING A TOTAL FLOW CAPACITY RESTRICTED SUFFICIENTLY SO AS TO CONTROL THE RATE OF MOVEMENT OF SAID EXPANSIBLE SLEEVE PREVENTING CHATTER AND BEING MOUNTED IN SAID HOUSING WITH PORTIONS THEREOF IN SPACED RELATIONSHIP TO SAID HOUSING TO FORM A FLUID CHAMBER OF SUBSTANTIAL VOLUME WITHIN SAID HOUSING AROUND SAID RIGID SLEEVE, AND, MEANS FOR INTRODUCING A COMPRESSIBLE PRESSURE FLUID INTO ONE OF SAID RIGID SLEEVE AND SAID CHAMBER.
Claim 2
Dependent Claim
158 words
A VALVE CONSTRUCTION COMPRISING: A HOUSING HAVING INLET AND OUTLET FLOW PASSAGES, A CIRCULAR BARRIER HAVING A PERIPHERAL CYLINDRICAL SEALING SURFACE SECURED WITHIN SAID HOUSING INTERMEDIATE SAID FLOW PASSAGES, AN EXPANSIBLE SLEEVE IN SEALED COMMUNICATION AT OPPOSITE ENDS THEREOF TO SAID FLOW PASSAGES AND SNUGLY EMBRACING THE CYLINDRICAL SEALING SURFACE OF SAID BARRIER, A RIGID SLEEVE SURROUNDING SAID EXPANSIBLE SLEEVE IN CLOSELY SPACED RELATIONSHIP THERETO SO THAT THE INNER SURFACE OF SAID RIGID SLEEVE LIMITS RADIAL EXPANSION OF SAID EXPANSIBLE SLEEVE, SAID RIGID SLEEVE HAVING AT LEAST ONE APERTURE THERETHROUGH, HAVING A TOTAL FLOW CAPACITY RESTRICTED SUFFICIENTLY SO AS TO CONTROL THE RATE OF MOVEMENT OF SAID EXPANSIBLE SLEEVE PREVENTING CHATTER AND BEING MOUNTED IN SAID HOUSING WITH PORTIONS THEREOF IN SPACED RELATIONSHIP TO SAID HOUSING TO FORM A FLUID CHAMBER OF SUBSTANTIAL VOLUME WITHIN SAID HOUSING AROUND SAID RIGID SLEEVE, AND, MEANS FOR INTRODUCING A COMPRESSIBLE PRESSURE FLUID INTO ONE OF SAID RIGID SLEEVE AND SAID CHAMBER.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |