Patent US3306572A successfully refreshed from Google Patents.
US3306572A
Expired / Lapsed
US
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Regulatable valve
Assignee: GLENS ENGINEERING WORKS PROPRI
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Filing: 1964-07-10
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Granted: 1967-02-28
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Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Dove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:05
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/10; F16K35/00; F16K5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A VALVE COMPRISING AN INVERTED T-SHAPED BODY, A PASSAGE THROUGH THE HEAD OF THE T, AN APERTURED SPHERICAL PLUG IN THE PASSAGE, FLANKED BY RESILIENT SEALING RINGS; SAID PLUG HAVING AN INTEGRAL SPINDLE EXTENDING THROUGH THE LEG OF THE T AND HOUSED IN A RECESS IN SAID LEG, AND CARRYING A HANDLE; A PAIR OF CLUTCH-LIKE PLATES RECEIVED BY SAID SPINDLE IN SAID RECESS, RESILIENT PACKING IN SAID LEG PRESSING SAID PLATES TOGETHER, ONE OF SAID PLATES BEING SECURED TO SAID SPINDLE AND ROTATABLE THEREWITH, SAID ONE PLATE BEING SUPPORTED SO THAT SUCH PLATE AS A WHOLE CANNOT MOVE AXIALLY, THE OTHER OF SAID PLATES BEING NONROTATABLY SECURED TO SAID HOUSING, SAID CLUTCH PLATES HAVING COOPERATING PROTRUSIONS AND LOCK CAVITIES ON THEIR CONTACTING FACES TO HOLD SAID VALVE IN VARIOUS POSITIONS OF ADJUSTMENT.
Claim 2
Dependent Claim
133 words
A VALVE COMPRISING AN INVERTED T-SHAPED BODY, A PASSAGE THROUGH THE HEAD OF THE T, AN APERTURED SPHERICAL PLUG IN THE PASSAGE, FLANKED BY RESILIENT SEALING RINGS; SAID PLUG HAVING AN INTEGRAL SPINDLE EXTENDING THROUGH THE LEG OF THE T AND HOUSED IN A RECESS IN SAID LEG, AND CARRYING A HANDLE; A PAIR OF CLUTCH-LIKE PLATES RECEIVED BY SAID SPINDLE IN SAID RECESS, RESILIENT PACKING IN SAID LEG PRESSING SAID PLATES TOGETHER, ONE OF SAID PLATES BEING SECURED TO SAID SPINDLE AND ROTATABLE THEREWITH, SAID ONE PLATE BEING SUPPORTED SO THAT SUCH PLATE AS A WHOLE CANNOT MOVE AXIALLY, THE OTHER OF SAID PLATES BEING NONROTATABLY SECURED TO SAID HOUSING, SAID CLUTCH PLATES HAVING COOPERATING PROTRUSIONS AND LOCK CAVITIES ON THEIR CONTACTING FACES TO HOLD SAID VALVE IN VARIOUS POSITIONS OF ADJUSTMENT.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |