US3173372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid energy system
Assignee: Arizona Research Foundation Inc
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Filing: 1963-09-25
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Granted: 1965-03-16
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Expires: 1983-09-25
Abstract
No abstract record available.
Inventors
- 👤 Howard A Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:07
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/09; F04B43/095; F04B43/10; F04B43/107; F04B43/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A FLUID ENERGY SYSTEM COMPRISING: (A) A RIGID, HOLLOW CYLINDER OF ONE DIAMETER; (B) AN ELASTIC TUBE OF A SMALLER DIAMETER AXIALLY DISPOSED WITHIN SAID CYLINDER AND HAVING RELATIVELY INELASTIC FIBERS SECURED THERETO IN A LONGITUDINAL DIRECTION; (C) AN ANNULAR MEMBER AT ONE END OF SAID CYLINDER FOR FIXEDLY SUPPORTING THE ADJACENT END OF SAID TUBE AND CLOSING THE SPACE THEREBETWEEN; (D) MEANS ADJACENT SAID ONE END OF SAID CYLINDER PROVIDING A DISCHARGE PORT; (E) MEANS ADJACENT THE OTHER END OF SAID CYLINDER FOR SUPPLYING A FIRST FLUID TO THE SPACE BETWEEN SAID CYLINDER AND SAID TUBE; (F) MEANS FOR FIXEDLY SUPPORTING THE OTHER END OF SAID TUBE; (G) MEANS ADJACENT SAID OTHER END OF SAID TUBE FOR SUPPLYING A PRESSURE-VARYING SECOND FLUID TO THE INTERIOR OF SAID TUBE, (H) WHEREBY A TRAVELING PRESSURE WAVE IS PRODUCED WITHIN SAID TUBE TO CAUSE PUMPING OF SAID FIRST FLUID WITH A DISCHARGE THEREOF VIA SAID PORT.
Claim 2
Dependent Claim
154 words
A FLUID ENERGY SYSTEM COMPRISING: (A) A RIGID, HOLLOW CYLINDER OF ONE DIAMETER; (B) AN ELASTIC TUBE OF A SMALLER DIAMETER AXIALLY DISPOSED WITHIN SAID CYLINDER AND HAVING RELATIVELY INELASTIC FIBERS SECURED THERETO IN A LONGITUDINAL DIRECTION; (C) AN ANNULAR MEMBER AT ONE END OF SAID CYLINDER FOR FIXEDLY SUPPORTING THE ADJACENT END OF SAID TUBE AND CLOSING THE SPACE THEREBETWEEN; (D) MEANS ADJACENT SAID ONE END OF SAID CYLINDER PROVIDING A DISCHARGE PORT; (E) MEANS ADJACENT THE OTHER END OF SAID CYLINDER FOR SUPPLYING A FIRST FLUID TO THE SPACE BETWEEN SAID CYLINDER AND SAID TUBE; (F) MEANS FOR FIXEDLY SUPPORTING THE OTHER END OF SAID TUBE; (G) MEANS ADJACENT SAID OTHER END OF SAID TUBE FOR SUPPLYING A PRESSURE-VARYING SECOND FLUID TO THE INTERIOR OF SAID TUBE, (H) WHEREBY A TRAVELING PRESSURE WAVE IS PRODUCED WITHIN SAID TUBE TO CAUSE PUMPING OF SAID FIRST FLUID WITH A DISCHARGE THEREOF VIA SAID PORT.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |