US3094307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circulating valve
Assignee: Individual
•
Filing: 1960-01-15
•
Granted: 1963-06-18
•
Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Alley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:50
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/14; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86791; Y10T137/86799
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
308 words
IN A SLEEVE VALVE ARRANGEMENT WHEREIN A SLEEVE VALVE HAVING AN UNRESTRICTED PASSAGE LONGITUDINALLY THEREOF FROM END TO END, AND WHICH VALVE IS CARRIED BY A PORTED CONDUIT AND MOVABLE RELATIVE TO THE CONDUIT TO OPEN AND CLOSE THE PORTS FOR FLOW THROUGH THE PORTS OF THE CONDUIT AND THROUGH SAID UNRESTRICTED PASSAGE IN SAID SLEEVE VALVE, AND WHEREIN SEAL MEANS ARE CARRIED BY THE CONDUIT ON EACH SIDE OF THE PORTS TO SEAL OFF BETWEEN THE CONDUIT AND SLEEVE VALVE WHEN THE SLEEVE VALVE IS POSITIONED TO CLOSE OFF FLOW THROUGH THE PORTS, THE SEAL MEANS ON ONE SIDE OF THE PORTS BEING COVERED BY THE VALVE WHEN IT IS IN POSITION TO CLOSE OFF FLOW THROUGH THE PORTS AND ALSO WHEN THE SLEEVE VALVE IS MOVED TO OPEN THE PORTS FOR FLOW THERETHROUGH, AND THE SEAL MEANS ON THE OTHER SIDE OF THE PORTS BEING COVERED BY THE VALVE WHEN IT IS IN POSITION TO CLOSE OFF FLOW THROUGH THE PORTS BUT NOT COVERED BY THE VALVE WHEN THE VALVE IS MOVED TO OPEN THE PORTS FOR FLOW THERETHROUGH, THE INVENTION COMPRISING, MEANS CARRIED BY THE CONDUIT AND MOVABLE LONGITUDINALLY OF THE CONDUIT AS THE VALVE IS MOVED TO COVER THE SEAL MEANS WHICH ARE UNCOVERED BY MOVEMENT OF THE VALVE TO PROTECT THEM FROM FLUID FLOW, MEANS IN THE SLEEVE VALVE TO EQUALIZE THE PRESSURE ACROSS THE SEAL MEANS UNCOVERED AS THE SLEEVE VALVE IS MOVED TO OPEN THE PORTS FOR FLOW THERETHROUGH, AND MEANS NORMALLY URGING SAID SEAL COVERING MEANS LONGITUDINALLY OF THE CONDUIT IN THE DIRECTION IN WHICH THE SLEEVE VALVE IS MOVED TO OPEN THE PORTS SO THAT WHEN THE SLEEVE VALVE IS MOVED LONGITUDINALLY TO OPEN THE PORTS, SAID SEAL COVERING MEANS ABUTS AND FOLLOWS THE SLEEVE VALVE TO COVER THE SEAL MEANS AS THEY ARE UNCOVERED BY THE SLEEVE VALVE.
Claim 2
Dependent Claim
308 words
IN A SLEEVE VALVE ARRANGEMENT WHEREIN A SLEEVE VALVE HAVING AN UNRESTRICTED PASSAGE LONGITUDINALLY THEREOF FROM END TO END, AND WHICH VALVE IS CARRIED BY A PORTED CONDUIT AND MOVABLE RELATIVE TO THE CONDUIT TO OPEN AND CLOSE THE PORTS FOR FLOW THROUGH THE PORTS OF THE CONDUIT AND THROUGH SAID UNRESTRICTED PASSAGE IN SAID SLEEVE VALVE, AND WHEREIN SEAL MEANS ARE CARRIED BY THE CONDUIT ON EACH SIDE OF THE PORTS TO SEAL OFF BETWEEN THE CONDUIT AND SLEEVE VALVE WHEN THE SLEEVE VALVE IS POSITIONED TO CLOSE OFF FLOW THROUGH THE PORTS, THE SEAL MEANS ON ONE SIDE OF THE PORTS BEING COVERED BY THE VALVE WHEN IT IS IN POSITION TO CLOSE OFF FLOW THROUGH THE PORTS AND ALSO WHEN THE SLEEVE VALVE IS MOVED TO OPEN THE PORTS FOR FLOW THERETHROUGH, AND THE SEAL MEANS ON THE OTHER SIDE OF THE PORTS BEING COVERED BY THE VALVE WHEN IT IS IN POSITION TO CLOSE OFF FLOW THROUGH THE PORTS BUT NOT COVERED BY THE VALVE WHEN THE VALVE IS MOVED TO OPEN THE PORTS FOR FLOW THERETHROUGH, THE INVENTION COMPRISING, MEANS CARRIED BY THE CONDUIT AND MOVABLE LONGITUDINALLY OF THE CONDUIT AS THE VALVE IS MOVED TO COVER THE SEAL MEANS WHICH ARE UNCOVERED BY MOVEMENT OF THE VALVE TO PROTECT THEM FROM FLUID FLOW, MEANS IN THE SLEEVE VALVE TO EQUALIZE THE PRESSURE ACROSS THE SEAL MEANS UNCOVERED AS THE SLEEVE VALVE IS MOVED TO OPEN THE PORTS FOR FLOW THERETHROUGH, AND MEANS NORMALLY URGING SAID SEAL COVERING MEANS LONGITUDINALLY OF THE CONDUIT IN THE DIRECTION IN WHICH THE SLEEVE VALVE IS MOVED TO OPEN THE PORTS SO THAT WHEN THE SLEEVE VALVE IS MOVED LONGITUDINALLY TO OPEN THE PORTS, SAID SEAL COVERING MEANS ABUTS AND FOLLOWS THE SLEEVE VALVE TO COVER THE SEAL MEANS AS THEY ARE UNCOVERED BY THE SLEEVE VALVE.
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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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |