US3080820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping system
Assignee: Scott and Williams Inc
•
Filing: 1958-12-19
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Granted: 1963-03-12
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Expires: 1978-12-19
Abstract
No abstract record available.
Inventors
- 👤 Lindsay H Browne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:21
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/06; F04B43/067; F04B43/0009; F04B43/0081; F04B43/009; F04B43/073; F04B43/0736; F04B53/00; F04B53/14; F04B53/142; G; G21; G21C; G21C15/00; G21C15/24; G21C15/243; G21F; G21F7/00; G21F7/06; G21F7/068; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PUMPING SYSTEM COMPRISING A HOUSING, A MOVABLE DIAPHRAGM HAVING SUBSTANTIAL STIFFNESS, SAID HOUSING COOPERATING WITH SAID DIAPHRAGM TO DEFINE A PAIR OF CHAMBERS ON OPPOSITE SIDES OF SAID DIAPHRAGM, MEANS FOR SUPPLYING A PULSATING FLOW OF LIQUID INTO AND OUT OF ONE OF SAID CHAMBERS, PUMPING MEANS DRIVEN BY LIQUID PRESSURE, AND A CONDUIT FILLED WITH LIQUID AND PROVIDING COMMUNICATION BETWEEN THE OTHER SAID CHAMBER AND SAID PUMPING MEANS, A PORTION OF SAID CONDUIT INCLUDING A STANDPIPE EXTENDING UPWARDLY WITH RESPECT TO SAID DIAPHRAGM, THE LIQUID IN SAID STANDPIPE EXERTING A STATIC PRESSURE HEAD ON SAID DIAPHRAGM AND SAID PUMPING MEANS BEING DRIVEN BY LIQUID PRESSURE COMMUNICATED THERETO THROUGH SAID CONDUIT.
Claim 2
Dependent Claim
112 words
A PUMPING SYSTEM COMPRISING A HOUSING, A MOVABLE DIAPHRAGM HAVING SUBSTANTIAL STIFFNESS, SAID HOUSING COOPERATING WITH SAID DIAPHRAGM TO DEFINE A PAIR OF CHAMBERS ON OPPOSITE SIDES OF SAID DIAPHRAGM, MEANS FOR SUPPLYING A PULSATING FLOW OF LIQUID INTO AND OUT OF ONE OF SAID CHAMBERS, PUMPING MEANS DRIVEN BY LIQUID PRESSURE, AND A CONDUIT FILLED WITH LIQUID AND PROVIDING COMMUNICATION BETWEEN THE OTHER SAID CHAMBER AND SAID PUMPING MEANS, A PORTION OF SAID CONDUIT INCLUDING A STANDPIPE EXTENDING UPWARDLY WITH RESPECT TO SAID DIAPHRAGM, THE LIQUID IN SAID STANDPIPE EXERTING A STATIC PRESSURE HEAD ON SAID DIAPHRAGM AND SAID PUMPING MEANS BEING DRIVEN BY LIQUID PRESSURE COMMUNICATED THERETO THROUGH SAID CONDUIT.
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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |