Patent US3105518A successfully refreshed from Google Patents.
US3105518A
Expired / Lapsed
US
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Multi-port valve operator
Assignee: Individual
•
Filing: 1959-03-23
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Granted: 1963-10-01
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Robert H Kunz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:31
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413; Y10T137/86493; Y10T137/86863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN A VALVE, A MULTI-CHAMBER BODY MEMBER, A ROTATABLE VALVE ELEMENT, A DRIVE SHAFT CONNECTED TO SAID VALVE ELEMENT, A PORTION OF SAID SHAFT ON THE PERIPHERY OF WHICH IS FORMED A HELICAL THREAD, MEANS CONCENTRIC TO SAID SHAFT AND CO-ACTING WITH SAID THREAD FOR ROTATING SAID SHAFT AND SAID VALVE ELEMENT IN ONE DIRECTION, SAID MEANS AXIALLY MOVABLE AND RESPONSIVE TO PRESSURE DIFFERENCES THEREON, WEDGE MEANS RESPONSIVE TO AXIAL MOVEMENT OF SAID MEANS FOR ROTATING SAID SHAFT FOR MOVING
Claim 2
Dependent Claim
80 words
IN A VALVE, A MULTI-CHAMBER BODY MEMBER, A ROTATABLE VALVE ELEMENT, A DRIVE SHAFT CONNECTED TO SAID VALVE ELEMENT, A PORTION OF SAID SHAFT ON THE PERIPHERY OF WHICH IS FORMED A HELICAL THREAD, MEANS CONCENTRIC TO SAID SHAFT AND CO-ACTING WITH SAID THREAD FOR ROTATING SAID SHAFT AND SAID VALVE ELEMENT IN ONE DIRECTION, SAID MEANS AXIALLY MOVABLE AND RESPONSIVE TO PRESSURE DIFFERENCES THEREON, WEDGE MEANS RESPONSIVE TO AXIAL MOVEMENT OF SAID MEANS FOR ROTATING SAID SHAFT FOR MOVING
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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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |