Patent US3204664A successfully refreshed from Google Patents.
US3204664A
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Fluid flow regulating valve
Assignee: Individual
•
Filing: 1962-03-16
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Granted: 1965-09-07
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Expires: 1982-03-16
Abstract
No abstract record available.
Inventors
- 👤 Gorchev Dimiter
- 👤 Gorchev Hend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:21
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/75; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A VALVE FOR REGULATING A FLUID FLOW COMPRISING: A SUBSTANTIALLY TUBULAR MEMBER ADAPTED TO BE CONNECTED WITHIN A CONDUIT; A SHAFT MOUNTED COAXIALLY WITHIN SAID MEMBER; A PLUNGER MEMBER SLIDABLE MOUNTED ON SAID SHAFT THEREBY DEFINING A FLUID PASSAGE BETWEEN THE TWO SAID MEMBERS, AT LEAST ONE OF SAID TUBULAR AND PLUNGER MEMBERS, RESPCETIVELY, HAVING A TAPER SUCH THAT MOVEMENT OF THE PLUNGER MEMBER IN THE DIRECTION OF FLOW WILL REDUCE THE SIZE OF SAID FLUID PASSAGE;
Claim 2
Dependent Claim
77 words
A VALVE FOR REGULATING A FLUID FLOW COMPRISING: A SUBSTANTIALLY TUBULAR MEMBER ADAPTED TO BE CONNECTED WITHIN A CONDUIT; A SHAFT MOUNTED COAXIALLY WITHIN SAID MEMBER; A PLUNGER MEMBER SLIDABLE MOUNTED ON SAID SHAFT THEREBY DEFINING A FLUID PASSAGE BETWEEN THE TWO SAID MEMBERS, AT LEAST ONE OF SAID TUBULAR AND PLUNGER MEMBERS, RESPCETIVELY, HAVING A TAPER SUCH THAT MOVEMENT OF THE PLUNGER MEMBER IN THE DIRECTION OF FLOW WILL REDUCE THE SIZE OF SAID FLUID PASSAGE;
References Cited (Backward Citations)
US1635040A
Cited
GB670839A
Cited
US2929402A
Cited
US2925826A
Cited
US2941401A
Cited
US2956583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |