Patent US3168012A successfully refreshed from Google Patents.
US3168012A
Expired / Lapsed
US
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Fluid pressure responsive actuator
Assignee: ROSTRA ENGINEERED COMPONENTS Inc A CORP OF CT
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Filing: 1962-11-07
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Granted: 1965-02-02
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Expires: 1982-11-07
Abstract
No abstract record available.
Inventors
- 👤 Selden T Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:02
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/10; F15B15/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A FLUID PRESSURE RESPONSIVE ACTUATOR COMPRISING (A) A HOLLOW CHAMBER HAVING A HOLE THROUGH ONE WALL THEREOF; (B) A BODY OF ELASTOMERIC MATERIAL CONSISTING OF A MULTIPLICITY OF INTEGRALLY UNITED ELASTICALLY WALLED AND HERMETICALLY CLOSED GAS-CONTAINING CELLS, SAID BODY HAVING A HOLE THERETHROUGH IN LINE WITH SAID HOLE IN THE CHAMBER WALL; (C) MEANS FOR SECURING SAID BODY INSIDE SAID CHAMBER WITH ONE SURFACE WHICH EXTENDS ENTIRELT ACROSS SAID BODY IN A DIRECTION NORMAL TO TH E HOLE IN SAID BODY, BEING ADHESIVELY ATTACHED THROUGHOUT, TO THE INNER SURFACE OF SAID CHAMBER WALL AROUND SAID FIRST HOLE; (D) AN ACTUATOR PIN ATTACHED TO THAT SURFACE OF SAID BODY OPPOSITE SAID ONE SURFACE AND EXTENDING THROUGH SAID HOLE TO THE EXTERIOR OF SAID CHAMBER; AND (E) A CONNECTION TO SAID CHAMBER FOR ADMITTING PRESSURE FLUID TO OR EXHAUSTING IT FROM SAID CHAMBER.
Claim 2
Dependent Claim
141 words
A FLUID PRESSURE RESPONSIVE ACTUATOR COMPRISING (A) A HOLLOW CHAMBER HAVING A HOLE THROUGH ONE WALL THEREOF; (B) A BODY OF ELASTOMERIC MATERIAL CONSISTING OF A MULTIPLICITY OF INTEGRALLY UNITED ELASTICALLY WALLED AND HERMETICALLY CLOSED GAS-CONTAINING CELLS, SAID BODY HAVING A HOLE THERETHROUGH IN LINE WITH SAID HOLE IN THE CHAMBER WALL; (C) MEANS FOR SECURING SAID BODY INSIDE SAID CHAMBER WITH ONE SURFACE WHICH EXTENDS ENTIRELT ACROSS SAID BODY IN A DIRECTION NORMAL TO TH E HOLE IN SAID BODY, BEING ADHESIVELY ATTACHED THROUGHOUT, TO THE INNER SURFACE OF SAID CHAMBER WALL AROUND SAID FIRST HOLE; (D) AN ACTUATOR PIN ATTACHED TO THAT SURFACE OF SAID BODY OPPOSITE SAID ONE SURFACE AND EXTENDING THROUGH SAID HOLE TO THE EXTERIOR OF SAID CHAMBER; AND (E) A CONNECTION TO SAID CHAMBER FOR ADMITTING PRESSURE FLUID TO OR EXHAUSTING IT FROM SAID CHAMBER.
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |