Patent US3108778A successfully refreshed from Google Patents.
US3108778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade type valve
Assignee: Mueller Brass Co
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Filing: 1961-01-16
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Granted: 1963-10-29
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Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 Robert R Rader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:56
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN A VALVE, A HOUSING HAVING INLET AND OUTLET PORTS ON OPPOSITE SIDES THEREOF, THE INTERIOR OF SAID HOUSING CONNECTING SAID INLET AND OUTLET PORTS, A CYLINDRICAL SURFACE ON THE INTERIOR OF SAID HOUSING EXTENDING TRANSVERSELY TO THE DIRECTION OF FLUID FLOW BETWEEN SAID PORTS, A FLAT RIGID BLADE DISPOSED IN SAID HOUSING, A UNITARY SEALING MEMBER OF FLEXIBLE MATERIAL HAVING A CENTRAL BLADE ENCLOSING PORTION OF RELATIVELY THIN CROSS-SECITON SHAPED TO CONFORM TO SAID BLADE, CIRCULAR END SEALING PORTIONS FORMED AT OPPOSITE ENDS OF SAID BLADE ENCLOSING PORTION AND EXTENDING RADIALLY OUTWARDLY THEREFROM, THE THICKNESS OF EACH OF SAID END SEALING PORTIONS IN THE DIRECTION OF EXTENT OF SAID BLADE BEING UNINTERRUPTED BETWEEN ITS OPPOSITE SIDES, WHEREBY FLUID PRESSURE IN THE HOUSING INTERIOR WILL FORCE SAID END SEALING PORTIONS OUTWARDLY IN THE DIRECTION OF EXTENT OF SAID BLADE, THE OPPOSITE EDGES OF SAID BLADE ENCLOSING PORTION BETWEEN SAID END SEALING PORTIONS BEING
Claim 2
Dependent Claim
153 words
IN A VALVE, A HOUSING HAVING INLET AND OUTLET PORTS ON OPPOSITE SIDES THEREOF, THE INTERIOR OF SAID HOUSING CONNECTING SAID INLET AND OUTLET PORTS, A CYLINDRICAL SURFACE ON THE INTERIOR OF SAID HOUSING EXTENDING TRANSVERSELY TO THE DIRECTION OF FLUID FLOW BETWEEN SAID PORTS, A FLAT RIGID BLADE DISPOSED IN SAID HOUSING, A UNITARY SEALING MEMBER OF FLEXIBLE MATERIAL HAVING A CENTRAL BLADE ENCLOSING PORTION OF RELATIVELY THIN CROSS-SECITON SHAPED TO CONFORM TO SAID BLADE, CIRCULAR END SEALING PORTIONS FORMED AT OPPOSITE ENDS OF SAID BLADE ENCLOSING PORTION AND EXTENDING RADIALLY OUTWARDLY THEREFROM, THE THICKNESS OF EACH OF SAID END SEALING PORTIONS IN THE DIRECTION OF EXTENT OF SAID BLADE BEING UNINTERRUPTED BETWEEN ITS OPPOSITE SIDES, WHEREBY FLUID PRESSURE IN THE HOUSING INTERIOR WILL FORCE SAID END SEALING PORTIONS OUTWARDLY IN THE DIRECTION OF EXTENT OF SAID BLADE, THE OPPOSITE EDGES OF SAID BLADE ENCLOSING PORTION BETWEEN SAID END SEALING PORTIONS BEING
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |