US3260502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butterfly valve
Assignee: Parker Hannifin Corp
•
Filing: 1958-04-14
•
Granted: 1966-07-12
•
Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 Mark J Plumer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:46
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/226; F16K1/228; F16K1/2285; F16K1/2261
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A BUTTERFLY VALVE COMPRISING A BODY HAVING A BORE THERETHROUGH, A CLOSURE MEMBER WITHIN SAID BORE, MEANS FOR ROTATING SAID MEMBER TO BORE OPENING AND BORE CLOSING POSITIONS A CONTINUOUS FLEXIBLE SHEET METAL SEALING MEMBER LOOSELY MOUNTED ON SAID CLOSURE MEMBER FOR BODILY MOVEMENT IN RADIAL AND TRANSVERSE DIRECTIONS WITH RESPECT TO SAID CLOSURE MEMBER, SAID SEALING MEMBER BEING CIRCULAR AND HAVING AN INITIAL DIAMETER SLIGHTLY GREATER THAN THE DIAMETER OF SAID BORE AND BEING RADIALLY CONTRACTED BY THE BORE INTO SEALING ENGAGEMENT THEREWITH WHEN THE CLOSURE MEMBER IS IN BORE CLOSING POSITION, AND MEANS FOR ESTABLISHING A SEAL BETWEEN SAID SEALING MEMBER AND SAID CLOSURE MEMBER IN ALL POSITIONS OF SAID SEALING MEMBER TO PREVENT THE PASSAGE OF FLUID THEREBETWEEN.
Claim 2
Dependent Claim
121 words
A BUTTERFLY VALVE COMPRISING A BODY HAVING A BORE THERETHROUGH, A CLOSURE MEMBER WITHIN SAID BORE, MEANS FOR ROTATING SAID MEMBER TO BORE OPENING AND BORE CLOSING POSITIONS A CONTINUOUS FLEXIBLE SHEET METAL SEALING MEMBER LOOSELY MOUNTED ON SAID CLOSURE MEMBER FOR BODILY MOVEMENT IN RADIAL AND TRANSVERSE DIRECTIONS WITH RESPECT TO SAID CLOSURE MEMBER, SAID SEALING MEMBER BEING CIRCULAR AND HAVING AN INITIAL DIAMETER SLIGHTLY GREATER THAN THE DIAMETER OF SAID BORE AND BEING RADIALLY CONTRACTED BY THE BORE INTO SEALING ENGAGEMENT THEREWITH WHEN THE CLOSURE MEMBER IS IN BORE CLOSING POSITION, AND MEANS FOR ESTABLISHING A SEAL BETWEEN SAID SEALING MEMBER AND SAID CLOSURE MEMBER IN ALL POSITIONS OF SAID SEALING MEMBER TO PREVENT THE PASSAGE OF FLUID THEREBETWEEN.
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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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |