US3330301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swingable armature solenoid operated rotary valve
Assignee: MAC Valves Inc
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Filing: 1964-09-23
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Granted: 1967-07-11
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Expires: 1984-09-23
Abstract
No abstract record available.
Inventors
- 👤 Walter D Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:55
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/10; F16K31/105; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/86638
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A REVERSING FLUID CONTROL VALVE, THE COMBINATION COMPRISING: (A) A VALVE BODY HAVING A COMPARTMENT; (B) A VALVE SEAT IN SAID COMPARTMENT; (C) A VALVE ELEMENT ROTATABLY MOUNTED ON SAID VALVE SEAT IN SAID COMPARTMENT AND ROTATABLE BETWEEN A FIRST FLUID FLOW CONTROL POSITION AND A SECOND FLUID FLOW CONTROL POSITION; (D) A PLURALITY OF FLUID PASSAGES IN SAID VALVE BODY COMMUNICATING WITH A PLURALITY OF OPENINGS IN SAID VALVE SEAT FOR CONVEYING FLUID TO AND FROM SAID COMPARTMENT UNDER THE CONTROL OF SAID VALVE ELEMENT; (E) ANTIFRICTION MEANS ROTABLE SUPPORTING AND CENTERING THE VALVE ELEMENT IN SAID COMPARTMENT; AND,
Claim 2
Dependent Claim
101 words
IN A REVERSING FLUID CONTROL VALVE, THE COMBINATION COMPRISING: (A) A VALVE BODY HAVING A COMPARTMENT; (B) A VALVE SEAT IN SAID COMPARTMENT; (C) A VALVE ELEMENT ROTATABLY MOUNTED ON SAID VALVE SEAT IN SAID COMPARTMENT AND ROTATABLE BETWEEN A FIRST FLUID FLOW CONTROL POSITION AND A SECOND FLUID FLOW CONTROL POSITION; (D) A PLURALITY OF FLUID PASSAGES IN SAID VALVE BODY COMMUNICATING WITH A PLURALITY OF OPENINGS IN SAID VALVE SEAT FOR CONVEYING FLUID TO AND FROM SAID COMPARTMENT UNDER THE CONTROL OF SAID VALVE ELEMENT; (E) ANTIFRICTION MEANS ROTABLE SUPPORTING AND CENTERING THE VALVE ELEMENT IN SAID COMPARTMENT; AND,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |