US3157200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating control valve
Assignee: Honeywell Inc
•
Filing: 1961-12-26
•
Granted: 1964-11-17
•
Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 William J Rowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:08
CPC Classifications
F; F16; F16K; F16K39/00; F16K39/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
139 words
A BALANCED VALVE FOR REGULATING THE FLOW OF A FLUID, COMPRISING A HOLLOW CAGE HAVING A CHAMFERED INNER EDGE SEAT FORMED ON AN INNER CYLINDRICAL END WALL PORTION THEREOF, AN ELONGATED PLUG SEALINGLY MOUNTED WITHIN SAID CAGE FOR SLIDING ENGAGEMENT TOWARD, INTO ENGAGEMENT AND AWAY FROM THE SEAT, THE PLUG BEING CONSTRUCTED OF A RIDGESHAPED CROSS-SECTION ALONG AN ENTIRE CIRCUMFERENTIAL OUTERSIDE WALL SURFACE PORTION THEREON WHOSE APEX IS POSITIONED TO BE BROUGHT INTO LINE ENGAGEMENT WITH THE SEAT, A PLURALITY OF PASSAGEWAYS EXTENDING FROM ONE INNER END PORTION OF THE PLUG TO AN OPPOSITE EXTREME END PORTION TO PERMIT THE FREE PASSAGE OF THE FLUID THERETHROUGH, THE PORTIONS OF SAID PLUG FORMING OPPOSITE ENDS THEREOF AGAINST WHICH THE PRESSURE OF THE FLUID IS APPLIED BEING OF SUBSTANTIALLY THE SAME AREA TO THEREBY MAINTAIN THE PLUG IN A BALANCED POSITION.
References Cited (Backward Citations)
US442465A
Cited
US1208590A
Cited
US1384567A
Cited
US1570568A
Cited
FR706587A
Cited
US2069297A
Cited
US2742921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |