Patent US3131716A successfully refreshed from Google Patents.
US3131716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control valves
Assignee: Griswold Controls LLC
•
Filing: 1961-03-16
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Granted: 1964-05-05
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Expires: 1981-03-16
Abstract
No abstract record available.
Inventors
- 👤 David E Griswold
- 👤 James L Wingert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:02
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/0006; G01P13/0013; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; G05D7/0133; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7791; Y10T137/7837; Y10T137/785; Y10T137/7854; Y10T137/7857; Y10T137/7869; Y10T137/8158; Y10T137/8359
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A FLOW CONTROL VALVE, COMPRISING: A VALVE BODY HAVING AN INLET AND AN OUTLET; AN ORIFICE PLATE IN SAID BODY DISPOSED BETWEEN SAID INLET AND OUT; A CUP ELEMENT HAVING A CYLINDRICAL BODY FLOATINGLY DISPOSED IN SAID ORIFICE PLATE FOR AXIAL MOVEMENT RELATIVE THERETO AND HAVING A FLANGE PORTION ENGAGEABLE WITH THE SIDE OF SAID ORIFICE PLATE NEAREST TO SAID OUTLET; AND A COMPRESSION SPRING BETWEEN SAID FLANGE AND SAID OUTLET FOR YIELDABLY OPPOSING MOVEMENT OF SAID CUP IN A DIRECTION TOWARD SAID OUTLET, SAID CUP HAVING A SIDE WALL WITH AXIALLY ELONGATED OPENINGS EXTENDING THERETHROUGH COOPERATING WITH SAID ORIFICE
Claim 2
Dependent Claim
100 words
A FLOW CONTROL VALVE, COMPRISING: A VALVE BODY HAVING AN INLET AND AN OUTLET; AN ORIFICE PLATE IN SAID BODY DISPOSED BETWEEN SAID INLET AND OUT; A CUP ELEMENT HAVING A CYLINDRICAL BODY FLOATINGLY DISPOSED IN SAID ORIFICE PLATE FOR AXIAL MOVEMENT RELATIVE THERETO AND HAVING A FLANGE PORTION ENGAGEABLE WITH THE SIDE OF SAID ORIFICE PLATE NEAREST TO SAID OUTLET; AND A COMPRESSION SPRING BETWEEN SAID FLANGE AND SAID OUTLET FOR YIELDABLY OPPOSING MOVEMENT OF SAID CUP IN A DIRECTION TOWARD SAID OUTLET, SAID CUP HAVING A SIDE WALL WITH AXIALLY ELONGATED OPENINGS EXTENDING THERETHROUGH COOPERATING WITH SAID ORIFICE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |