US3196974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast acting sensitive pressure switch
Assignee: Texaco Experiment Inc
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Filing: 1961-08-14
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Granted: 1965-07-27
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Expires: 1981-08-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Vernon M Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:34
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/04; H; H01; H01H; H01H35/00; H01H35/24; H01H35/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
A FAST ACTING SENSITIVE PRESSURE SWITCH FOR USE IN SEISMIC SHOOTING AND THE LIKE COMPRISING A FLAT THIN AT LEAST PARTIALLY CONDUCTIVE MATERIAL DIAPHRAGM, SAID DIAPHRAGM BEING ADAPTED TO RESPOND TO SEISMIC WAVES, MEANS FOR ELECTRICALLY CONNECTING SAID DIAPHRAGM SOLELY TO ACT AS ONE CONTACT OF SAID SWITCH, A CENTRALLY LOCATED CONDUCTIVE MATERIAL MEMBER LOCATED VERY CLOSE TO BUT NOT IN CONTACT WITH SAID DIAPHRAGM IN THE ABSENCE OF AWNY SEISMIC WAVE ACTUATION OF THE DIAPHRAGM, AND AN ELONGATED SUPPORT STRUCTURE SPACING THE FOREGOING PRESSURE RESPONSIVE SWITCH ELEMENTS A PREDETERMINED DISTANCE FROM AN EXPLOSIVE CHARGE THAT IS TO BE DETONATED UNDER CONTROL OF THE CLOSING OF SAID SWITCH WHICH DISTANCE IS DETERMINED BY THE INHERENT SWITCH DELAY TIME AND THE SEISMIC VELOCITY OF THE FORMATION BETWEEN SAID SWITCH AND EXPLOSIVE.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |