US3122045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid powered device
Assignee: Unisys Corp
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Filing: 1961-12-22
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Granted: 1964-02-25
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Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Saul N Zilberfarb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26D; B26D5/00; B26D5/08; B26D5/12; F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1423; F15B15/1447; F15C; F15C1/00; F15C1/001; G; G06; G06K; G06K1/00; G06K1/02; Y; Y10; Y10S; Y10S73/00; Y10S73/08; Y10T; Y10T83/00; Y10T83/869; Y10T83/8788; Y10T83/8821; Y10T83/8858; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9428
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
APPARATUS FOR CONVERTING FLUID PRESSURE INTO MECHANICAL MOTION WHICH COMPRISES: AN ELONGATED CHAMBER HAVING ONE END ADAPTED TO ADMIT A FLUID UNDER PRESSURE, AND A PISTON SLIDABLY LOCATED WITHIN SAID CHAMBER AND LOOSELY FITTED THEREWITH TO PROVIDE A CLEARANCE BETWEEN ITS PERIPHERAL SURFACE AND SAID CHAMBER WHICH HAS A CROSS-SECTIONAL AREA TO PERMIT FLUID FLOW FROM SAID CHAMBER ONE END TO BE SUBSTANTIALLY MAINTAINED THERETHROUGH IN THE DIRECTION OF THE CHAMBER OPPOSITE END AT RELATIVELY HIGH VELOCITY FOR THE ENTIRE AXIAL LENGTH OF AT LEAST A PORTION OF SAID PISTON PERIPHERAL SURFACE, WHERE SAID PISTON PERIPHERAL SURFACE PORTION HAS FORMED THEREIN AT LEAST ONE CIRCUMFERENTIAL GROOVE INTO WHICH A PORTION OF SAID CLEARANCE FLUID ENTERS TO STRIKE ITS INTERIOR IN A DIRECTION TOWARDS SAID CHAMBER OPPOSITE END AT RELATIVELY HIGH VELOCITY AND THEREBY CONTINUOUSLY APPLY AN UNBALANCED DYNAMIC FORCE TO SAID PISTON IN THE DIRECTION OF SAID CHAMBER OPPOSITE END FOR THE DURATION OF FLUID ADMISSION TO SAID CHAMBER ONE END.
Claim 2
Dependent Claim
161 words
APPARATUS FOR CONVERTING FLUID PRESSURE INTO MECHANICAL MOTION WHICH COMPRISES: AN ELONGATED CHAMBER HAVING ONE END ADAPTED TO ADMIT A FLUID UNDER PRESSURE, AND A PISTON SLIDABLY LOCATED WITHIN SAID CHAMBER AND LOOSELY FITTED THEREWITH TO PROVIDE A CLEARANCE BETWEEN ITS PERIPHERAL SURFACE AND SAID CHAMBER WHICH HAS A CROSS-SECTIONAL AREA TO PERMIT FLUID FLOW FROM SAID CHAMBER ONE END TO BE SUBSTANTIALLY MAINTAINED THERETHROUGH IN THE DIRECTION OF THE CHAMBER OPPOSITE END AT RELATIVELY HIGH VELOCITY FOR THE ENTIRE AXIAL LENGTH OF AT LEAST A PORTION OF SAID PISTON PERIPHERAL SURFACE, WHERE SAID PISTON PERIPHERAL SURFACE PORTION HAS FORMED THEREIN AT LEAST ONE CIRCUMFERENTIAL GROOVE INTO WHICH A PORTION OF SAID CLEARANCE FLUID ENTERS TO STRIKE ITS INTERIOR IN A DIRECTION TOWARDS SAID CHAMBER OPPOSITE END AT RELATIVELY HIGH VELOCITY AND THEREBY CONTINUOUSLY APPLY AN UNBALANCED DYNAMIC FORCE TO SAID PISTON IN THE DIRECTION OF SAID CHAMBER OPPOSITE END FOR THE DURATION OF FLUID ADMISSION TO SAID CHAMBER ONE END.
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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |