US3333602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual safety valve assembly
Assignee: Dole Valve Co
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Filing: 1964-08-04
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Granted: 1967-08-01
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Expires: 1984-08-04
Abstract
No abstract record available.
Inventors
- 👤 Howard L Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:06
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/20; F16K11/24; A; A47; A47L; A47L15/00; A47L15/42; A47L15/4214; A47L15/4217; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692; Y10T137/87917; Y10T137/87981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A FLUID CONTROL VALVE COMPRISNG A VALVE BODY HAVING AN INLET AND AN OUTLET, FIRST AND SECOND ANNULAR CHAMBERS OPENING TO DIFFERENT SIDES OF SAID VALVE BODY, MEANS COMMUNICATING SAID INLET WITH SAID FIRST ANNULAR CHAMBER, A FLOW PASSAGE FORMED CONCENTRICALLY OF AND WITHIN SAID FIRST ANNULAR CHAMBER AND OPENING TO SAID SECOND ANNULAR CHAMBER, A SECOND FLOW PASSAGE FORMED CONCENTRICALLY OF AND WITHIN SAID SECOND ANNULAR CHAMBER AND OPENING TO SAID OUTLET, WALL SECTIONS FORMING A PART OF SAID VALVE BODY AND PARTITIONING THE SAID ANNULAR PASSAGEWAYS FROM THE SAID FLOW PASSAGES AND HAVING LIPS FORMED ABOUT THE OUTER ENDS THEREOF SERVING TO DEFINE SAID PASSAGES, MEANS PROVIDING A CLOSED FLUID PATH BETWEEN SAID ANNULAR PASSAGEWAYS AND SAID PASSAGES, VALVE MEANS COOPERABLE WITH SAID LIPS TO CONTROL THE FLOW OF FLUID THEREPAST, AND ELECTRICALLY ENERGIZABLE VALVE MEANS CONNECTED IN PARALLEL WITH ONE ANOTHER FOR SIMULTANEOUS ENERGIZATION AND COOPERABLE WITH EACH OF SAID LIPS TO CONTROL FLOW OF FLUID THEREPAST.
Claim 2
Dependent Claim
160 words
A FLUID CONTROL VALVE COMPRISNG A VALVE BODY HAVING AN INLET AND AN OUTLET, FIRST AND SECOND ANNULAR CHAMBERS OPENING TO DIFFERENT SIDES OF SAID VALVE BODY, MEANS COMMUNICATING SAID INLET WITH SAID FIRST ANNULAR CHAMBER, A FLOW PASSAGE FORMED CONCENTRICALLY OF AND WITHIN SAID FIRST ANNULAR CHAMBER AND OPENING TO SAID SECOND ANNULAR CHAMBER, A SECOND FLOW PASSAGE FORMED CONCENTRICALLY OF AND WITHIN SAID SECOND ANNULAR CHAMBER AND OPENING TO SAID OUTLET, WALL SECTIONS FORMING A PART OF SAID VALVE BODY AND PARTITIONING THE SAID ANNULAR PASSAGEWAYS FROM THE SAID FLOW PASSAGES AND HAVING LIPS FORMED ABOUT THE OUTER ENDS THEREOF SERVING TO DEFINE SAID PASSAGES, MEANS PROVIDING A CLOSED FLUID PATH BETWEEN SAID ANNULAR PASSAGEWAYS AND SAID PASSAGES, VALVE MEANS COOPERABLE WITH SAID LIPS TO CONTROL THE FLOW OF FLUID THEREPAST, AND ELECTRICALLY ENERGIZABLE VALVE MEANS CONNECTED IN PARALLEL WITH ONE ANOTHER FOR SIMULTANEOUS ENERGIZATION AND COOPERABLE WITH EACH OF SAID LIPS TO CONTROL FLOW OF FLUID THEREPAST.
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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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |