US3360009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic fluid accumulator having separating wall tensioner
Assignee: Hydraulik GmbH
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Filing: 1965-07-02
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Granted: 1967-12-26
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Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 Elmer Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:53
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/18; F15B1/20; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/21; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/40; F15B2201/415; F15B2201/4155; F15B2201/43; F15B2201/435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A HYDRAULIC FLUID ACCUMULATOR COMPRISING A CYLINDRICAL HOUSING HAVING A FIRST END AND A SECOND END WITH MEANS AT SAID SECOND END DEFINING A FITTING WITH A HYDRAULIC OPENING THEREIN, A CYLINDRICAL RESILIENT SEPARATING MEMBER HAVING A STRAIGHT CYLINDER FORMING WALL, SAID MEMBER EXTENDING INTO SAID HOUSING FROM SAID FIRST END AND TERMINATING ON THE INTERIOR OF SAID HOUSING AT ITS INNER END, A CLOSURE LID CLOSING SAID FIRST END OF SAID HOUSING AND SAID MEMBER, AND WALL CLOSURE MEANS ENGAGED WITH THE INNER END OF SAID MEMBER AND BIASING THE PERIPHERY THEREOF TOWARD THE HYDRAULIC OPENING, SAID CLOSURE MEANS BEING OF A WEIGHT TO EXERT A DOWNWARD STRETCHING FORCE ON SAID MEMBER AT LEAST ALWAYS GREATER THAN THE LIFTING ACTION OF THE HYDRAULIC FLUID TO URGE SAID CYLINDER WALL TO MAINTAIN ITS STRAIGHT FORM WITHOUT COLLAPSE.
Claim 2
Dependent Claim
137 words
A HYDRAULIC FLUID ACCUMULATOR COMPRISING A CYLINDRICAL HOUSING HAVING A FIRST END AND A SECOND END WITH MEANS AT SAID SECOND END DEFINING A FITTING WITH A HYDRAULIC OPENING THEREIN, A CYLINDRICAL RESILIENT SEPARATING MEMBER HAVING A STRAIGHT CYLINDER FORMING WALL, SAID MEMBER EXTENDING INTO SAID HOUSING FROM SAID FIRST END AND TERMINATING ON THE INTERIOR OF SAID HOUSING AT ITS INNER END, A CLOSURE LID CLOSING SAID FIRST END OF SAID HOUSING AND SAID MEMBER, AND WALL CLOSURE MEANS ENGAGED WITH THE INNER END OF SAID MEMBER AND BIASING THE PERIPHERY THEREOF TOWARD THE HYDRAULIC OPENING, SAID CLOSURE MEANS BEING OF A WEIGHT TO EXERT A DOWNWARD STRETCHING FORCE ON SAID MEMBER AT LEAST ALWAYS GREATER THAN THE LIFTING ACTION OF THE HYDRAULIC FLUID TO URGE SAID CYLINDER WALL TO MAINTAIN ITS STRAIGHT FORM WITHOUT COLLAPSE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |