Patent US3194164A successfully refreshed from Google Patents.
US3194164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump
Assignee: Individual
•
Filing: 1963-04-26
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Granted: 1965-07-13
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Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 Fink Abraham Arthur
- 👤 John J Sandmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:59
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/10; F04B43/107; A; A61; A61M; A61M60/00; A61M60/10; A61M60/104; A61M60/117; A61M60/20; A61M60/247; A61M60/253; A61M60/258; A61M60/30; A61M60/31; A61M60/40; A61M60/424; A61M60/427; A61M60/438; A61M60/441; A61M60/50; A61M60/508; A61M60/80; A61M60/835; A61M60/837; A61M60/435; Y; Y10; Y10S; Y10S128/00; Y10S128/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A PUMP: A RIGID SHELL AND A FLEXIBLE DIAPHRAGM EXTENDING ACROSS THE EDGE OF THE SHELL FORMING A HOLLOW BODY ADAPTED TO CONTAIN A SUBSTANTIALLY INCOMPRESSIBLE LIQUID; A FLEXIBLE BAG IN SAID BODY PROVIDED WITH AN INLET CONDUIT AND AN OUTLET CONDUIT EXTENDING THROUGH THE SHELL TO THE EXTERIOR THEREOF, THERE BEING A CHECK VALVE IN EACH OF SAID CONDUITS, SAID LIQUID COMPLETELY FILLING THE BODY EXTERIORLY OF THE BAG; A RECIPROCABLE MEMBER CONNECTED WITH SAID DIAPHRAGM AND EXTENDING AWAY FROM SAID BODY; AND MEANS OPERABLY COUPLED WITH SAID MEMBER FOR RECIPROCATING THE LATTER TO FLEX THE DIAPHRAGM AGAINST AND AWAY FROM SAID LIQUID TO COLLAPSE AND EXPAND THE BAG, WHEREBY TO PUMP A FLUID INTO AND OUT OF THE LATTER.
Claim 2
Dependent Claim
122 words
IN A PUMP: A RIGID SHELL AND A FLEXIBLE DIAPHRAGM EXTENDING ACROSS THE EDGE OF THE SHELL FORMING A HOLLOW BODY ADAPTED TO CONTAIN A SUBSTANTIALLY INCOMPRESSIBLE LIQUID; A FLEXIBLE BAG IN SAID BODY PROVIDED WITH AN INLET CONDUIT AND AN OUTLET CONDUIT EXTENDING THROUGH THE SHELL TO THE EXTERIOR THEREOF, THERE BEING A CHECK VALVE IN EACH OF SAID CONDUITS, SAID LIQUID COMPLETELY FILLING THE BODY EXTERIORLY OF THE BAG; A RECIPROCABLE MEMBER CONNECTED WITH SAID DIAPHRAGM AND EXTENDING AWAY FROM SAID BODY; AND MEANS OPERABLY COUPLED WITH SAID MEMBER FOR RECIPROCATING THE LATTER TO FLEX THE DIAPHRAGM AGAINST AND AWAY FROM SAID LIQUID TO COLLAPSE AND EXPAND THE BAG, WHEREBY TO PUMP A FLUID INTO AND OUT OF THE LATTER.
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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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |