US3230715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic-machine system with idling mode
Assignee: Continental Teves AG and Co OHG
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Filing: 1965-01-18
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Granted: 1966-01-25
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Expires: 1985-01-18
Abstract
No abstract record available.
Inventors
- 👤 Klein Hans-Christof
- 👤 Budecker Ludwig
- 👤 Hertell Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:50
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/06; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0854; F01C21/0863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A METHOD OF OPERATING A HYDRAULIC MACHINE WHEREIN A PAIR OF RELATIVELY MOVABLE MEMBERS ARE PROVIDED RESPECTIVELY WITH A PLURALITY OF VARIABLE-STROKE WORKING ELEMENTS ENTRAINED BY ONE OF SAID MEMBERS AND BEARING UPON THE OTHER OF SAID MEMBERS, SAID OTHER MEMBER HAVING A CONTOUR DEFINING THE STROKE OF SAID ELEMENTS, THE IMPROVEMENT WHICH COMPRISES THE STEP OF HYDRAULICALLY BIASING SAID ELEMENTS AWAY FROM SAID CONTOUR IN AN IDLING CONDITION OF THE MACHINE AGAINST THE FORCES URGING THE ELEMENTS IN THE DIRECTION OF THE CONTOUR, THEREBY REDUCING FRICTIONAL INTERENGAGEMENT OF SAID MEMBERS DURING SAID IDLING CONDITION.
Claim 2
Dependent Claim
96 words
IN A METHOD OF OPERATING A HYDRAULIC MACHINE WHEREIN A PAIR OF RELATIVELY MOVABLE MEMBERS ARE PROVIDED RESPECTIVELY WITH A PLURALITY OF VARIABLE-STROKE WORKING ELEMENTS ENTRAINED BY ONE OF SAID MEMBERS AND BEARING UPON THE OTHER OF SAID MEMBERS, SAID OTHER MEMBER HAVING A CONTOUR DEFINING THE STROKE OF SAID ELEMENTS, THE IMPROVEMENT WHICH COMPRISES THE STEP OF HYDRAULICALLY BIASING SAID ELEMENTS AWAY FROM SAID CONTOUR IN AN IDLING CONDITION OF THE MACHINE AGAINST THE FORCES URGING THE ELEMENTS IN THE DIRECTION OF THE CONTOUR, THEREBY REDUCING FRICTIONAL INTERENGAGEMENT OF SAID MEMBERS DURING SAID IDLING CONDITION.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |