Patent US3420266A successfully refreshed from Google Patents.
US3420266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination magnetic bypass valve and indicator
Assignee: Aero Flow Dynamics Inc
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Filing: 1963-09-20
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Granted: 1969-01-07
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 George T Downey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:24
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D35/147; F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/08; F16K37/00; F16K37/0025; F16K37/0033; F16K37/0041; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
IN COMBINATION: A HOUSING; VALVE MEANS INCLUDINGG A VALVE SEAT WITHIN SAID HOUSING AND A MOVABLE VALVE MEMBER MOUNTED FOR CLOSING AND OPENING MOVEMENT RELATIVE TO SAID VALVE SEAT; MAGNETIC FIELD RESPONSIVE INDICATOR MEANS FOR INDICATING THE POSITION OF SAID VALVE MEMBER RELATIVE TO SAID VALVE SEAT; FIRST MAGNETIC MEANS HAVING POLES OF OPPOSITE POLARITY CLOSELY ADJACENT TO SAID INDICATOR MEANS AND DRIVINGLY CONNECTED TO SAID MOVABLE VALVE MEMBER FOR MOVEMENT PROPORTIONAL TO THE OPENING MOVEMENT OF SAID VALVE MEMBER; SAID INDICATOR MEAN INCLUDING SECOND MAGNETIC MEANS HAVING AT LEAST ONE POLE CLOSELY ADJACENT TO THE POLE OF OPPOSITE POLARITY OF SAID FIRST MAGNETIC MEANS IN ITS NORMAL POSITION CORRESPONDING TO THE CLOSED POSITION OF SAID MOVABLE POSITION CORRESPONDING BEING MOUNTED FOR MOVEMENT RELATIVE TO SAID FIRST MAGNETIC MEANS TO A SECOND VALVE MOVEMENT INDICATING POSITION FOR ACTUATION OF SAID INDICATOR MEANS; SAID FIRST MAGNETIC MEANS BEING MOVABLE DURING THE OPENING MOVEMENT OF SAID MOVABLE VALVE MEMBER TO POSITION ITS OTHER POLE CLOSEDLY ADJACENT TO SAID AT LEAST ONE POLE OF SAID SECOND MAGNETIC MEANS FOR REPELLING SAID SECOND MAGNETIC MEANS FROM ITS NORMAL POSITION TO ITS SECOND POSITION FOR ACTUATING SAID INDICATOR MEANS.
Claim 2
Dependent Claim
194 words
IN COMBINATION: A HOUSING; VALVE MEANS INCLUDINGG A VALVE SEAT WITHIN SAID HOUSING AND A MOVABLE VALVE MEMBER MOUNTED FOR CLOSING AND OPENING MOVEMENT RELATIVE TO SAID VALVE SEAT; MAGNETIC FIELD RESPONSIVE INDICATOR MEANS FOR INDICATING THE POSITION OF SAID VALVE MEMBER RELATIVE TO SAID VALVE SEAT; FIRST MAGNETIC MEANS HAVING POLES OF OPPOSITE POLARITY CLOSELY ADJACENT TO SAID INDICATOR MEANS AND DRIVINGLY CONNECTED TO SAID MOVABLE VALVE MEMBER FOR MOVEMENT PROPORTIONAL TO THE OPENING MOVEMENT OF SAID VALVE MEMBER; SAID INDICATOR MEAN INCLUDING SECOND MAGNETIC MEANS HAVING AT LEAST ONE POLE CLOSELY ADJACENT TO THE POLE OF OPPOSITE POLARITY OF SAID FIRST MAGNETIC MEANS IN ITS NORMAL POSITION CORRESPONDING TO THE CLOSED POSITION OF SAID MOVABLE POSITION CORRESPONDING BEING MOUNTED FOR MOVEMENT RELATIVE TO SAID FIRST MAGNETIC MEANS TO A SECOND VALVE MOVEMENT INDICATING POSITION FOR ACTUATION OF SAID INDICATOR MEANS; SAID FIRST MAGNETIC MEANS BEING MOVABLE DURING THE OPENING MOVEMENT OF SAID MOVABLE VALVE MEMBER TO POSITION ITS OTHER POLE CLOSEDLY ADJACENT TO SAID AT LEAST ONE POLE OF SAID SECOND MAGNETIC MEANS FOR REPELLING SAID SECOND MAGNETIC MEANS FROM ITS NORMAL POSITION TO ITS SECOND POSITION FOR ACTUATING SAID INDICATOR MEANS.
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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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |