US3133997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-pressure actuated switch
Assignee: Individual
•
Filing: 1961-09-29
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Granted: 1964-05-19
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Expires: 1981-09-29
Abstract
No abstract record available.
Inventors
- 👤 Greene Sanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:53
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34; H01H35/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A FLUID-PRESSURE ACTUATED SWITCH COMPRISING: A SUPPORT; A PAIR OF LONGITUDINALLY EXTENDING SUBSTANTIALLY PARALLEL SPACED FIXED RIGID CONTACT ELEMENTS EXTENDING FROM SAID SUPPORT; AT LEAST TWO LONGITUDINALLY EXTENDING RESILIENT CONTACT FINGERS ELECTRICALLY INTERCONNECTED AND NORMALLY DISPOSED ON OPPOSITE SIDES OF, SUBSTANTIALLY PARALLEL TO, AND IN A PREDETERMINED RELATION TO SAID RIGID CONTACT ELEMENTS; AND FLUID-IMPERVIOUS FLEXIBLE MEMBRANE MEANS ENCLOSING SAID CONTACT ELEMENTS AND WITH SAID SUPPORT FORMING A FLUID-TIGHT ENCLOSURE, WHEREBY THE APPLICATION OF FLUID PRESSURE TO SAID MEMBRANE MEANS CAUSES THE SAME DIRECTLY TO ENGAGE SAID CONTACT FINGERS AND CHANGES THE RELATION BETWEEN SAID FINGERS AND SAID RIGID CONTACT ELEMENTS.
Claim 2
Dependent Claim
101 words
A FLUID-PRESSURE ACTUATED SWITCH COMPRISING: A SUPPORT; A PAIR OF LONGITUDINALLY EXTENDING SUBSTANTIALLY PARALLEL SPACED FIXED RIGID CONTACT ELEMENTS EXTENDING FROM SAID SUPPORT; AT LEAST TWO LONGITUDINALLY EXTENDING RESILIENT CONTACT FINGERS ELECTRICALLY INTERCONNECTED AND NORMALLY DISPOSED ON OPPOSITE SIDES OF, SUBSTANTIALLY PARALLEL TO, AND IN A PREDETERMINED RELATION TO SAID RIGID CONTACT ELEMENTS; AND FLUID-IMPERVIOUS FLEXIBLE MEMBRANE MEANS ENCLOSING SAID CONTACT ELEMENTS AND WITH SAID SUPPORT FORMING A FLUID-TIGHT ENCLOSURE, WHEREBY THE APPLICATION OF FLUID PRESSURE TO SAID MEMBRANE MEANS CAUSES THE SAME DIRECTLY TO ENGAGE SAID CONTACT FINGERS AND CHANGES THE RELATION BETWEEN SAID FINGERS AND SAID RIGID CONTACT ELEMENTS.
References Cited (Backward Citations)
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Cited
US2457153A
Cited
US2632098A
Cited
GB774259A
Cited
US2968707A
Cited
US2885507A
Cited
US2935582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |