US3133171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure switch
Assignee: CUSTOM COMPONENT SWITCHES Inc
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Filing: 1961-06-15
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Granted: 1964-05-12
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Expires: 1981-06-15
Abstract
No abstract record available.
Inventors
- 👤 Donald L Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:47
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
IN A SNAP ACTION PRESSURE SWITCH MEANS, A HOLLOW, TUBULAR BODY MEMBER OPEN AT ONE END AND HAVING AN END WALL AT THE OTHER END THEREOF, A PORT AFFORDING CONNECTION TO A SOURCE OF FLUID PRESSURE PROJECTING OUTWARDLY FROM SAID END WALL AND EXTENDING THROUGH SAID END WALL INTO THE INTERIOR OF SAID BODY MEMBER, A FLEXIBLE DIAPHRAGM DISPOSED ON THE INNER FACE OF SAID END WALL AND CLOSING SAID PORT WITH RESULTANT FORMATION OF A PRESSURE CHAMBER AT THE INNER END OF SAID PORT, MEANS CLAMPING SAID DIAPHRAGM AGAINST SAID END WALL FACE AND FORMING A BACKUP WALL FOR SAID DIAPHRAM, A PLUNGER HAVING AN END FACE ENGAGING THE SIDE OF SAID DIAPHRAGM ENGAGED
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |