Patent US3347336A successfully refreshed from Google Patents.
US3347336A
Expired / Lapsed
US
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Seismic wave generator
Assignee: Shell USA Inc
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Filing: 1965-06-29
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Granted: 1967-10-17
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Expires: 1985-06-29
Abstract
No abstract record available.
Inventors
- 👤 Jr David M Nash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:21
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/157; G01V1/04; G01V1/047; Y; Y10; Y10S; Y10S181/00; Y10S181/40; Y10S181/401
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
IN COMBINATION WITH A SEISMIC WAVE GENERATOR OF THE TYPE INCLUDING: A HEAVY, THICK-WALLED DOME ADAPTED TO BE POSITIONED WITH ITS OPEN END JUXTAPOSED THE SURFACE OF THE GROUND, A FLEXIBLE DISPHRAGM CLOSING THE OPEN END OF SAID DOME IN A FLUID-TIGHT MANNER, A FLUID IN SAID DOME ABOVE SAID DIAPHRAGM, A SPARK GAP DEVICE EXTENDING INTO SAID FLUID AND A SOURCE OF HIGH VOLTAGE CONNECTED TO SAID SPARK GAP CAPABLE OF CREATING A DISCHARGE ACROSS SAID GAP SUFFICIENT TO CREATE A PRESSURE PULSE IN SAID FLUID, THE IMPROVEMENT COMPRISING: A RIGID PLATE, SAID RIGID PLATE BEING MOUNTED ACROSS THE OPEN END OF SAID DOME ADJACENT THE OUTER SURFACE OF SAID DIAPHRAGM, SAID RIGID PLATE BEING MOUNTED ON SAID DOME BY MEANS OF A PLURALITY OF ELONGATED STUDS DISTRIBUTED ABOUT THE PERIPHERY OF SAID PLATE AND FIXEDLY SECURED TO SAID PLATE, EACH OF SAID STUDS EXTENDING UPWARDLY THROUGH A RESPECTIVE OPENING IN A LATERALLY EXTENDING FLANGE ON SAID DOME, SAID STUDS BEING FREE TO MOVE ALONG THE AXIS OF SAID OPENINGS, WHEREBY SAID RIGID PLATE IS FREE TO MOVE IN A DIRECTION ALONG THE VERTICAL AXIS OF SAID DOME.
Claim 2
Dependent Claim
189 words
IN COMBINATION WITH A SEISMIC WAVE GENERATOR OF THE TYPE INCLUDING: A HEAVY, THICK-WALLED DOME ADAPTED TO BE POSITIONED WITH ITS OPEN END JUXTAPOSED THE SURFACE OF THE GROUND, A FLEXIBLE DISPHRAGM CLOSING THE OPEN END OF SAID DOME IN A FLUID-TIGHT MANNER, A FLUID IN SAID DOME ABOVE SAID DIAPHRAGM, A SPARK GAP DEVICE EXTENDING INTO SAID FLUID AND A SOURCE OF HIGH VOLTAGE CONNECTED TO SAID SPARK GAP CAPABLE OF CREATING A DISCHARGE ACROSS SAID GAP SUFFICIENT TO CREATE A PRESSURE PULSE IN SAID FLUID, THE IMPROVEMENT COMPRISING: A RIGID PLATE, SAID RIGID PLATE BEING MOUNTED ACROSS THE OPEN END OF SAID DOME ADJACENT THE OUTER SURFACE OF SAID DIAPHRAGM, SAID RIGID PLATE BEING MOUNTED ON SAID DOME BY MEANS OF A PLURALITY OF ELONGATED STUDS DISTRIBUTED ABOUT THE PERIPHERY OF SAID PLATE AND FIXEDLY SECURED TO SAID PLATE, EACH OF SAID STUDS EXTENDING UPWARDLY THROUGH A RESPECTIVE OPENING IN A LATERALLY EXTENDING FLANGE ON SAID DOME, SAID STUDS BEING FREE TO MOVE ALONG THE AXIS OF SAID OPENINGS, WHEREBY SAID RIGID PLATE IS FREE TO MOVE IN A DIRECTION ALONG THE VERTICAL AXIS OF SAID DOME.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |