US3215223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recoilless seismic source
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1962-05-10
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Granted: 1965-11-02
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Expires: 1982-05-10
Abstract
No abstract record available.
Inventors
- 👤 Robert A Kirby
- 👤 Gerald M Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:43
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/104; G01V1/108; G01V1/112
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
AN APPARATUS FOR GENERATING A SEISMIC DISTURBANCE BY STRIKING THE EARTH WITH AN IMPACT PLATE WHICH COMPRISES COMBINATION: A HOUSING; A PISTON SLIDABLY MOUNTED IN SAID HOUSING; A REACTION MASS SLIDABLY MOUNTED IN SAID HOUSING ABOVE SAID PISTON; POWER GENERATING MEANS FOR GENERATING FORCE BETWEEN SAID REACTION MASS AND SAID PISTON; A PISTON ROD CONNECTING SAID PISTON TO THE IMPACT PLATE; DAMPING MEANS OF A CHARACTER TO RESTRICT THE DOWNWARD MOVEMENT OF SAID REACTION MASS TOWARD SAID PISTON; AND MEANS TO PISTON SAID PISTON IN ITS UPPERMOST POSITION; SAID DAMPING MEANS INCLUDING AN EXHAUST PASSAGEWAY THROUGH THE WALL OF AN UPPER PORTION OF SAID HOUSIONG, A CHECK VALVE ION THE EXHAUST PASSAGEWAY AND OF A CHARACTER TO PERMIT FLOW OF FLUID OUTWARDLY ONLY, AND AN ORIFICE IN THE UPPER END OF SAID HOUSING.
References Cited (Backward Citations)
US1867098A
Cited
US2203140A
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US2898084A
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US2854962A
Cited
US3029733A
Cited
US3056104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |