Patent US3134304A successfully refreshed from Google Patents.
US3134304A
Expired / Lapsed
US
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Pressure operated pump
Assignee: Bendix Corp
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Filing: 1962-10-15
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Granted: 1964-05-26
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Expires: 1982-10-15
Abstract
No abstract record available.
Inventors
- 👤 Robert R Hager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:45
CPC Classifications
F; F04; F04B; F04B35/00; F04B35/008; A; A61; A61H; A61H9/00; F04B9/00; F04B9/08; F04B9/12; F04B9/1207; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896; Y10T74/18992
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
FOR USE IN A PUMP HAVING A HOUSING WITH A PRESSURE RESPONSIVE MOTOR CONTROLLING A PRESSURE DEVELOPING CHAMBER, WHICH HOUSING HAS AN ACTUATED MEMBER SUPPORTED FOR SLIDING MOVEMENT, A VALVE OPERATING MEANS COMPRISING: A PAIR OF GENERALLY PARALLEL PINS, ONE OF WHICH IS FIXED TO SAID HOUSING WHILE THE OTHER IS ARRANGED TO MOVE TOWARD AND AWAY FROM SAID FIXED PIN; A LEVER PIVOTALLY MOUNTED ON SAID FIXED PIN, SAID LEVER BEING BIFURCATED INTO A PAIR OF LEGS AT ONE END HAVING A RISING AND FALLING CAM SURFACE WITH A CENTER HIGH POINT FORMED BETWEEN THE PAIR OF LEGS, WHICH CAM SURFACE ENGAGES SAID MOVABLE PIN; AND AT LEAST ONE SPRING BIASING SAID MOVABLE PIN TOWARDS SAID FIXED PIN TO EFFECT SNAP ACTION OF SAID LEVER WHENEVER SAID MOVABLE PIN REACHES THE CENTER HIGH POINT ON SAID CAM SURFACE.
Claim 2
Dependent Claim
139 words
FOR USE IN A PUMP HAVING A HOUSING WITH A PRESSURE RESPONSIVE MOTOR CONTROLLING A PRESSURE DEVELOPING CHAMBER, WHICH HOUSING HAS AN ACTUATED MEMBER SUPPORTED FOR SLIDING MOVEMENT, A VALVE OPERATING MEANS COMPRISING: A PAIR OF GENERALLY PARALLEL PINS, ONE OF WHICH IS FIXED TO SAID HOUSING WHILE THE OTHER IS ARRANGED TO MOVE TOWARD AND AWAY FROM SAID FIXED PIN; A LEVER PIVOTALLY MOUNTED ON SAID FIXED PIN, SAID LEVER BEING BIFURCATED INTO A PAIR OF LEGS AT ONE END HAVING A RISING AND FALLING CAM SURFACE WITH A CENTER HIGH POINT FORMED BETWEEN THE PAIR OF LEGS, WHICH CAM SURFACE ENGAGES SAID MOVABLE PIN; AND AT LEAST ONE SPRING BIASING SAID MOVABLE PIN TOWARDS SAID FIXED PIN TO EFFECT SNAP ACTION OF SAID LEVER WHENEVER SAID MOVABLE PIN REACHES THE CENTER HIGH POINT ON SAID CAM SURFACE.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |