US3103338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-magnetically operated pilot valve
Assignee: Robertshaw US Holding Corp
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Filing: 1960-10-14
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Granted: 1963-09-10
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Expires: 1980-10-14
Abstract
No abstract record available.
Inventors
- 👤 Anthony B Marmo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:27
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/40; F16K31/402; F16K31/404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
IN A VALVE MECHANISM COMPRISING A VALVE BODY HAVING A CHAMBER INCLUDING AN INLET AND AN OUTLET, A MAIN FLOW PORT IN SAID CHAMBER CONNECTED WITH SAID OUTLET, A VALVE MEMBER ARRANGED TO CLOSE ON SAID MAIN PORT, A DIAPHRAGM FOR ACTUATING SAID VALVE MEMBER, SAID DIAPHRAGM SEPARATING SAID CHAMBER INTO TWO COMPARTMENTS, ONE COMPARTMENT INCLUDING SAID INLET AND SAID MAIN VALVE PORT, A PILOT VALVE MEANS INCLUDING A PORT LEADING FROM THE OTHER COMPARTMENT TO SAID OUTLET, A PILOT VALVE MEMBER FOR CONTROLLING FLOW THROUGH SAID PILOT PORT, AND MEANS FORMING A FLUID CONNECTION BETWEEN SAID TWO COMPARTMENTS COMPRISING A CORRUGATION FORMED IN SAID DIAPHRAGM AND HAVING RESILIENT WALLS, A FLAT BACKING PLATE HAVING AN IMPERFORATE PORTION CLOSING THE OPEN SIDE OF SAID CORRUGATION, A FLUID OPENING IN THE WALLS OF SAID CORRUGATION TO PROVIDE COMMUNICATION WITH SAID ONE COMPARTMENT, AND A FLUID PASSAGE LEADING FROM SAID CORRUGATION TO BEYOND THE OUTER EDGE OF SAID PLATE INTO THE SAID OTHER COMPARTMENT.
Claim 2
Dependent Claim
162 words
IN A VALVE MECHANISM COMPRISING A VALVE BODY HAVING A CHAMBER INCLUDING AN INLET AND AN OUTLET, A MAIN FLOW PORT IN SAID CHAMBER CONNECTED WITH SAID OUTLET, A VALVE MEMBER ARRANGED TO CLOSE ON SAID MAIN PORT, A DIAPHRAGM FOR ACTUATING SAID VALVE MEMBER, SAID DIAPHRAGM SEPARATING SAID CHAMBER INTO TWO COMPARTMENTS, ONE COMPARTMENT INCLUDING SAID INLET AND SAID MAIN VALVE PORT, A PILOT VALVE MEANS INCLUDING A PORT LEADING FROM THE OTHER COMPARTMENT TO SAID OUTLET, A PILOT VALVE MEMBER FOR CONTROLLING FLOW THROUGH SAID PILOT PORT, AND MEANS FORMING A FLUID CONNECTION BETWEEN SAID TWO COMPARTMENTS COMPRISING A CORRUGATION FORMED IN SAID DIAPHRAGM AND HAVING RESILIENT WALLS, A FLAT BACKING PLATE HAVING AN IMPERFORATE PORTION CLOSING THE OPEN SIDE OF SAID CORRUGATION, A FLUID OPENING IN THE WALLS OF SAID CORRUGATION TO PROVIDE COMMUNICATION WITH SAID ONE COMPARTMENT, AND A FLUID PASSAGE LEADING FROM SAID CORRUGATION TO BEYOND THE OUTER EDGE OF SAID PLATE INTO THE SAID OTHER COMPARTMENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |