Patent US3122162A successfully refreshed from Google Patents.
US3122162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control device
Assignee: Individual
•
Filing: 1963-06-20
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Granted: 1964-02-25
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Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Asa D Sands
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:14
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/24; F16K17/28; F16K17/30; F16K17/02; F16K17/04; F16K17/044; G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; G05D7/0133; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7785; Y10T137/7792; Y10T137/7837; Y10T137/7847; Y10T137/7866
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
IN A FLOW CONTROL DEVICE, A VALVE BODY HAVING A VALVE CHAMBER THEREIN; VALVE SEATS FORMED IN SAID BODY AT OPPOSITE ENDS OF SAID CHAMBER, ONE OF SAID SEATS BEING FLAT AND THE OTHER OF SAID SEATS BEING FUNNEL SHAPED; A VALVE ELEMENT HAVING LATERALLY AND OPPOSITELY EXTENDING VALVE STEMS THEREON MOVABLY DISPOSED IN SAID CHAMBER, ONE OF SAID STEMS HAVING A LONGITUDINALLY EXTENDING PASSAGEWAY THERETHROUGH, THE SAID VALVE ELEMENT ALSO HAVING AN ANNULAR SHOULDER ON ONE END THEREOF ADAPTED TO SEAT ON SAID FLAT VALVE SEAT AND THE OTHER END OF SAID ELEMENT BEING CONE SHAPED TO SEAT IN THE FUNNEL SHAPED SEAT OF SAID BODY, AND THE SAID VALVE ELEMENT BEING PROVIDED WITH RADIALLY DISPOSED HOLES OF DIFFERENT DIAMETERS TO PROVIDE FOR REGULATION OF FLUID PASSING THROUGH THE SAID VALVE ELEMENT, THE SAID HOLES COMMUNICATING WITH ONE END OF THE PASSAGEWAY FORMED IN ONE OF SAID VALVE STEMS; A CLOSURE MEANS ASSOCIATED WITH SAID VALVE ELEMENT FOR SELECTIVELY CLOSING THE HOLES THEREIN, AND A COILED SPRING SURROUNDING EACH OF SAID VALVE STEMS AND BEARING AGAINST SAID VALVE ELEMENT FOR MAINTAINING THE SAME DURING NORMAL OPERATION OF THE DEVICE IN A POSITION TO PROVIDE FOR FREE FLOW OF FLUID THERETHROUGH.
Claim 2
Dependent Claim
201 words
IN A FLOW CONTROL DEVICE, A VALVE BODY HAVING A VALVE CHAMBER THEREIN; VALVE SEATS FORMED IN SAID BODY AT OPPOSITE ENDS OF SAID CHAMBER, ONE OF SAID SEATS BEING FLAT AND THE OTHER OF SAID SEATS BEING FUNNEL SHAPED; A VALVE ELEMENT HAVING LATERALLY AND OPPOSITELY EXTENDING VALVE STEMS THEREON MOVABLY DISPOSED IN SAID CHAMBER, ONE OF SAID STEMS HAVING A LONGITUDINALLY EXTENDING PASSAGEWAY THERETHROUGH, THE SAID VALVE ELEMENT ALSO HAVING AN ANNULAR SHOULDER ON ONE END THEREOF ADAPTED TO SEAT ON SAID FLAT VALVE SEAT AND THE OTHER END OF SAID ELEMENT BEING CONE SHAPED TO SEAT IN THE FUNNEL SHAPED SEAT OF SAID BODY, AND THE SAID VALVE ELEMENT BEING PROVIDED WITH RADIALLY DISPOSED HOLES OF DIFFERENT DIAMETERS TO PROVIDE FOR REGULATION OF FLUID PASSING THROUGH THE SAID VALVE ELEMENT, THE SAID HOLES COMMUNICATING WITH ONE END OF THE PASSAGEWAY FORMED IN ONE OF SAID VALVE STEMS; A CLOSURE MEANS ASSOCIATED WITH SAID VALVE ELEMENT FOR SELECTIVELY CLOSING THE HOLES THEREIN, AND A COILED SPRING SURROUNDING EACH OF SAID VALVE STEMS AND BEARING AGAINST SAID VALVE ELEMENT FOR MAINTAINING THE SAME DURING NORMAL OPERATION OF THE DEVICE IN A POSITION TO PROVIDE FOR FREE FLOW OF FLUID THERETHROUGH.
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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |