Patent US3822968A successfully refreshed from Google Patents.
US3822968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsating fluid pumping system
Assignee: Individual
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Filing: 1972-03-10
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Granted: 1974-07-09
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Expires: 1992-03-10
Abstract
Abstract The pumping system can be utilized wherever pulsatory fluid pumping is expedient or possible. The system is distinguished by the fact that the positivedisplacement pump employed therein is submerged into the fluid being pumped so, that the hole for fluid ejection is located below the level of this fluid, and the inner space of the pump working chamber permanently communicates with the fluid to be pumped.
Inventors
- 👤 A Khokhlov
- 👤 N Makarov
- 👤 M Maximov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:17
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/10; C; C12; C12M; C12M29/00; C12M29/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
A pulsatory system for pumping liquids comprising: a positive-displacement pump having two chambers divided by an elastic resilient wall, one of said chambers having an opening for the intake and ejection of liquid, the other one of said chambers communicating with a pulsatory pressure source, said opening for the intake and ejection of liquid being submerged into the liquid to be pumped and allowing a predetermined layer of the liquid to be pumped between said opening and a gas medium said liquid to be pumped is located in a storage vessel; an aerator filled with gas and located over said opening so that each batch of liquid to be pumped and ejected due to a pressure pulse on said elastic wall from said opening through said layer of the liquid being pumped, moves onto the walls of said aerator, spills out over said walls of said aerator while saturated with gas, and spills down outside from said aerator gas supply means for supplying said gas to said aerator; gas removal means for removing gas from said aerator; an auxiliary chamber communicating with said aerator and receiving said batch of liquid from said aerator; and piping connected to said auxiliary chamber and communicating with said storage vessel for circulating liquid from said aerator to said storage vessel through said auxiliary chamber and said piping.
Claim 2
Dependent Claim
223 words
A pulsatory system for pumping liquids comprising: a positive-displacement pump having two chambers divided by an elastic resilient wall, one of said chambers having an opening for the intake and ejection of liquid, the other one of said chambers communicating with a pulsatory pressure source, said opening for the intake and ejection of liquid being submerged into the liquid to be pumped and allowing a predetermined layer of the liquid to be pumped between said opening and a gas medium said liquid to be pumped is located in a storage vessel; an aerator filled with gas and located over said opening so that each batch of liquid to be pumped and ejected due to a pressure pulse on said elastic wall from said opening through said layer of the liquid being pumped, moves onto the walls of said aerator, spills out over said walls of said aerator while saturated with gas, and spills down outside from said aerator gas supply means for supplying said gas to said aerator; gas removal means for removing gas from said aerator; an auxiliary chamber communicating with said aerator and receiving said batch of liquid from said aerator; and piping connected to said auxiliary chamber and communicating with said storage vessel for circulating liquid from said aerator to said storage vessel through said auxiliary chamber and said piping.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |