US3190229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for conveying liquids
Assignee: Individual
•
Filing: 1962-06-07
•
Granted: 1965-06-22
•
Expires: 1982-06-07
Abstract
No abstract record available.
Inventors
- 👤 Turowski Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:57
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/09; F04B53/00; F04B53/10; F04B53/1037; F04B53/1047; F04B53/1057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A SYSTEM FOR PUMPING FLUID MEDIA COMPRISING: A CONDUIT FOR RECEIVING THE MEDIA TO BE PUMPED, SAID CONDUIT INCLUDING A FIRST SECTION OF AN ELASTIC MATERIAL AND A SECOND ELASTIC MATERIAL SECTION WHICH HAS A CROSS SECTIONAL FLOW AREA WHICH IS NORMALY CONSTRICTED RELATIVE TO THE CROSS SECTIONAL FLOW AREA OF SAID FIRST SECTION; AND MEANS FOR REPETITIVELY APPLYING FORCE TO SAID FIRST SECTION TO REDUCE THE FLOW AREA THEREOF TO PRESSURIZE THE FLUID MEDIA AND ENABLE THE PRESSURIZED MEDIA TO EXPAND THE NORMALLY CONSTRICTED FLOW AREA OF SAID SECOND SECTION FOR FLOW OF FLUID MEDIA FROM SAID FIRST SECTION TO SAID SECOND SECTION AND THROUGH THE EXPANDED CONSTRICTED FLOW AREA OF THE LATTER, SAID CONSTRICTED FLOW AREA, UPON RELEASE OF THE PRESSURE ON SAID FIRST SECTION, SUBSTANTIALLY INHIBITING RETURN FLOW OF FLUID MEDIA TO SAID FIRST SECTION, SAID NORMALLY CONSTRICTED FLOW AREA OF SAID SECOND SECTION BEING PRODUCED BY AND ADJUSTABLE FORCE SPRING ACTING ON SAID SECOND SECTION.
Claim 2
Independent Claim
159 words
A SYSTEM FOR PUMPING FLUID MEDIA COMPRISING: A CONDUIT FOR RECEIVING THE MEDIA TO BE PUMPED, SAID CONDUIT INCLUDING A FIRST SECTION OF AN ELASTIC MATERIAL AND A SECOND ELASTIC MATERIAL SECTION WHICH HAS A CROSS SECTIONAL FLOW AREA WHICH IS NORMALY CONSTRICTED RELATIVE TO THE CROSS SECTIONAL FLOW AREA OF SAID FIRST SECTION; AND MEANS FOR REPETITIVELY APPLYING FORCE TO SAID FIRST SECTION TO REDUCE THE FLOW AREA THEREOF TO PRESSURIZE THE FLUID MEDIA AND ENABLE THE PRESSURIZED MEDIA TO EXPAND THE NORMALLY CONSTRICTED FLOW AREA OF SAID SECOND SECTION FOR FLOW OF FLUID MEDIA FROM SAID FIRST SECTION TO SAID SECOND SECTION AND THROUGH THE EXPANDED CONSTRICTED FLOW AREA OF THE LATTER, SAID CONSTRICTED FLOW AREA, UPON RELEASE OF THE PRESSURE ON SAID FIRST SECTION, SUBSTANTIALLY INHIBITING RETURN FLOW OF FLUID MEDIA TO SAID FIRST SECTION, SAID NORMALLY CONSTRICTED FLOW AREA OF SAID SECOND SECTION BEING PRODUCED BY AND ADJUSTABLE FORCE SPRING ACTING ON SAID SECOND SECTION.
References Cited (Backward Citations)
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FR850942A
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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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |