US3558242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump for desalination plant
Assignee: Petersen Candy International Ltd
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Filing: 1969-03-04
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Granted: 1971-01-26
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Expires: 1989-03-04
Abstract
Abstract THE INVENTION COMPRISES A PUMP FOR A DESALINATION PLANT OPERATING BY THE PROCESS OF REVERSE OSMOSIS, WHICH IS DRIVEN BY A PISTON ENGINE OPERATED BY THE PRESSURE OF REJECTED LIQUID OF THE PROCESS, AND MAY BE FORMED WITH A COMMON CYLINDER IN WHICH THE PISTON OF THE ENGINE IS COUPLED TO THE PISTON OF THE PUMP BY A COMMON PISTON ROD. ALTERNATIVELY THE PUMP AND THE ENGINE MAY HAVE A COMMON CYLINDER AND A COMMON PISTON. WHICHEVER IS THE CASE SUITABLE VALVES ARE PROVIDED FOR CONNECTING THE CHAMBERS OF THE ENGINE AND THE PISTON IN APPROPRIATE MANNER AS THE PUMP ROTATES.
Inventors
- 👤 William Dixon Jenkyn-Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:46
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/08; F04B9/10; F04B9/103; F04B9/107; B; B01; B01D; B01D61/00; B01D61/02; B01D61/06; F04B9/02; F04B9/04; F04B9/045; B01D2313/00; B01D2313/24; B01D2313/246; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y02A20/131
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |