US3329390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable orifice valve
Assignee: Individual
•
Filing: 1965-02-18
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Granted: 1967-07-04
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Expires: 1985-02-18
Abstract
No abstract record available.
Inventors
- 👤 Eldon E Hulsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:42
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A VARIABLE ORIFICE VALVE, COMPRISING, A TUBULAR BODY HAVING AN AXIAL BORE DEFINING A FLOW PASSAGE THERETHROUGH, FIRST AND SECOND COLLAR MEMBERS COAXIALLY DISPOSED IN LONGITUDINALLY SPACED RELATION IN SAID BORE, SAID FIRST COLLAR MEMBER BEING ARRANGED FOR LONGITUDINAL MOVEMENT AND SAID SECOND COLLAR MEMBER FOR ROTARY MOVEMENT IN SAID BORE, A FLEXIBLY DEFORMABLE SLEEVE MEMBER COAXIALLY DISPOSED IN SAID BORE AND HAVING ITS ENDS FIXEDLY SECURED TO THE RESPECTIVE COLLAR MEMBERS, DRIVE MEANS FOR ROTATING SAID SECOND COLLAR MEMBER RELATIVE TO THE FIRST COLLAR MEMBER WHEREBY TO TWIST ONE END OF SAID SLEEVE MEMBER RELATIVE TO THE OTHER AND THEREBY TO PROPORTIONALLY CHANGE THE CROSS-SECTIONAL AREA OF THE BORE OF SAID SLEEVE MEMBER; MEANS RESILIENTLY BIASING SAID FIRST COLLAR MEMBER LONGITUDINALLY AWAY FROM SAID SECOND COLLAR MEMBER WHEREBY TO MAINTAIN TENSION ON SAID SLEEVE MEMBER, MEANS SEALING BETWEEN THE RESPECTIVE COLLAR MEMBERS AND THE SURROUNDING WALL OF SAID BODY AND DEFINING A SEALED ANNULAR SPACE SURROUNDING SAID SLEEVE MEMBER, AND A PRESSURE-EQUALIZING PASSAGE COMMUNICATING THE UPSTREAM END OF SAID FLOW PASSAGE WITH SAID ANNULAR SPACE.
Claim 2
Dependent Claim
176 words
A VARIABLE ORIFICE VALVE, COMPRISING, A TUBULAR BODY HAVING AN AXIAL BORE DEFINING A FLOW PASSAGE THERETHROUGH, FIRST AND SECOND COLLAR MEMBERS COAXIALLY DISPOSED IN LONGITUDINALLY SPACED RELATION IN SAID BORE, SAID FIRST COLLAR MEMBER BEING ARRANGED FOR LONGITUDINAL MOVEMENT AND SAID SECOND COLLAR MEMBER FOR ROTARY MOVEMENT IN SAID BORE, A FLEXIBLY DEFORMABLE SLEEVE MEMBER COAXIALLY DISPOSED IN SAID BORE AND HAVING ITS ENDS FIXEDLY SECURED TO THE RESPECTIVE COLLAR MEMBERS, DRIVE MEANS FOR ROTATING SAID SECOND COLLAR MEMBER RELATIVE TO THE FIRST COLLAR MEMBER WHEREBY TO TWIST ONE END OF SAID SLEEVE MEMBER RELATIVE TO THE OTHER AND THEREBY TO PROPORTIONALLY CHANGE THE CROSS-SECTIONAL AREA OF THE BORE OF SAID SLEEVE MEMBER; MEANS RESILIENTLY BIASING SAID FIRST COLLAR MEMBER LONGITUDINALLY AWAY FROM SAID SECOND COLLAR MEMBER WHEREBY TO MAINTAIN TENSION ON SAID SLEEVE MEMBER, MEANS SEALING BETWEEN THE RESPECTIVE COLLAR MEMBERS AND THE SURROUNDING WALL OF SAID BODY AND DEFINING A SEALED ANNULAR SPACE SURROUNDING SAID SLEEVE MEMBER, AND A PRESSURE-EQUALIZING PASSAGE COMMUNICATING THE UPSTREAM END OF SAID FLOW PASSAGE WITH SAID ANNULAR SPACE.
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |