US3304881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid actuated pump
Assignee: Individual
•
Filing: 1965-03-10
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Granted: 1967-02-21
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Expires: 1985-03-10
Abstract
No abstract record available.
Inventors
- 👤 Frederick G J Grise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:16
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/10; F04B43/113; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A SELF-CYCLING CONTROL VALVE ASSEMBLY RHYTHMICALLY OPERABLE TO CONFINE AND THEN RELEASE A PRESSURIZED FLUID, COMPRISING A VALVE BODY ARRANGED TO BE MOUNTED IN THE WALL OF A CONTAINER, A PASSAGE THROUGH SAID VALVE BODY TERMINATING IN AN OUTLET OPENING, A VALVE MEMBER MOUNTED FOR RECIPROCATING MOVEMENT INTO AND OUT OF A POSITION IN ENGAGEMENT WITH SAID VALVE BODY IN WHICH THE OUTLET OPENING IS CLOSED AND SEALED BY SAID VALVE MEMBER, AN ELONGATED RESILIENT MEMBER FIXEDLY SECURED TO AND PROJECTING FROM SAID VALVE MEMBER, AN INERTIAL WEIGHT SECURED TO SAID ELONGATED RESILIENT MEMBER REMOTE FROM SAID VALVE MEMBER, AND A FIXED STOP MEANS MOUNTED SO THAT IT LIMITS DISPLACEMENT OF SAID VALVE MEMBER FROM ITS POSITION IN ENGAGEMENT WITH SAID VALVE BODY IN WHICH THE OUTLET OPENING IS CLOSED AND SEALED BY SAID VALVE MEMBER, SAID ELONGATED RESILIENT MEMBER BEING ARRANGED
Claim 2
Dependent Claim
142 words
A SELF-CYCLING CONTROL VALVE ASSEMBLY RHYTHMICALLY OPERABLE TO CONFINE AND THEN RELEASE A PRESSURIZED FLUID, COMPRISING A VALVE BODY ARRANGED TO BE MOUNTED IN THE WALL OF A CONTAINER, A PASSAGE THROUGH SAID VALVE BODY TERMINATING IN AN OUTLET OPENING, A VALVE MEMBER MOUNTED FOR RECIPROCATING MOVEMENT INTO AND OUT OF A POSITION IN ENGAGEMENT WITH SAID VALVE BODY IN WHICH THE OUTLET OPENING IS CLOSED AND SEALED BY SAID VALVE MEMBER, AN ELONGATED RESILIENT MEMBER FIXEDLY SECURED TO AND PROJECTING FROM SAID VALVE MEMBER, AN INERTIAL WEIGHT SECURED TO SAID ELONGATED RESILIENT MEMBER REMOTE FROM SAID VALVE MEMBER, AND A FIXED STOP MEANS MOUNTED SO THAT IT LIMITS DISPLACEMENT OF SAID VALVE MEMBER FROM ITS POSITION IN ENGAGEMENT WITH SAID VALVE BODY IN WHICH THE OUTLET OPENING IS CLOSED AND SEALED BY SAID VALVE MEMBER, SAID ELONGATED RESILIENT MEMBER BEING ARRANGED
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |