Patent US3198477A successfully refreshed from Google Patents.
US3198477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking valve
Assignee: Akron Brass Co
•
Filing: 1961-12-27
•
Granted: 1965-08-03
•
Expires: 1981-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jr George G Allenbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:18
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A VALVE CONSTRUCTION INCLUDING A VALUE BODY, A PLUG ROTATABLE IN THE VALUE BODY FOR ESTABLISHING FLUID FLOW IN A FIRST POSITION AND BLOCKING FLUID FLOW IN A SECOND POSITION, AND A SHAFT FOR ROTATING THE PLUG, THE IMPROVEMENT COMPRISING LOCKING MEANS CONNECTED TO SAID SHAFT FOR NORMALLY PREVENTING ROTATION THEREOF, SAID LOCKING MEANS INCLUDING WEDGING MEANS OPERATIVE IN OPPOSITE DIRECTIONS OF ROTATION OF SAID SHAFT, DRIVE MEANS OPERATIVELY CONNECTED TO SAID LOCKING MEANS, SAID DRIVE MEANS INCLUDING MEANS FOR SEQUENTIALLY DISENGAGING SAID WEDGING MEANS ANG THEN ROTATING SAID SHAFT, AND HANDLE MEANS ROTATABLY CONNECTED TO SAID VALVE BODY FOR OPERATING SAID DRIVE MEANS.
Claim 2
Dependent Claim
105 words
IN A VALVE CONSTRUCTION INCLUDING A VALUE BODY, A PLUG ROTATABLE IN THE VALUE BODY FOR ESTABLISHING FLUID FLOW IN A FIRST POSITION AND BLOCKING FLUID FLOW IN A SECOND POSITION, AND A SHAFT FOR ROTATING THE PLUG, THE IMPROVEMENT COMPRISING LOCKING MEANS CONNECTED TO SAID SHAFT FOR NORMALLY PREVENTING ROTATION THEREOF, SAID LOCKING MEANS INCLUDING WEDGING MEANS OPERATIVE IN OPPOSITE DIRECTIONS OF ROTATION OF SAID SHAFT, DRIVE MEANS OPERATIVELY CONNECTED TO SAID LOCKING MEANS, SAID DRIVE MEANS INCLUDING MEANS FOR SEQUENTIALLY DISENGAGING SAID WEDGING MEANS ANG THEN ROTATING SAID SHAFT, AND HANDLE MEANS ROTATABLY CONNECTED TO SAID VALVE BODY FOR OPERATING SAID DRIVE MEANS.
References Cited (Backward Citations)
US1473634A
Cited
US1385785A
Cited
DE565023C
Cited
US1983284A
Cited
US2559960A
Cited
US2493966A
Cited
US2531970A
Cited
US2660902A
Cited
US2934188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |