US3131633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Velocity-matching seismic charge unit
Assignee: Pan American Petroleum Corp
•
Filing: 1958-12-10
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Granted: 1964-05-05
•
Expires: 1978-12-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Eisler
- 👤 Silverman Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:47
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/04; G01V1/06; G01V1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN ADJUSTABLE DETONATION-TRANSMITTING DELAY UNIT FOR SPACING APART AND OPERATIVELY CONNECTING ADJACENT EXPLOSIVE CHARGES OF AN ELONGATED CHARGE ARRAY ADAPTED TO GENERATE SEISMIC WAVES AND TO MATCH THE DETONATION VELOCITY ALONG THE ARRAY TO THE SEISMIC-WAVE PROPOGATION VELOCITY OF A SURROUNDING MEDIUM, SAID DELAY UNIT COMPRISING A TUBULAR MEMBER OF A SUBSTANTIAL LENGTH AT LEAST EQUAL TO THE SPACING OF SAID ADJACENT CHARGES COUPLED THEREBY, COUPLING MEANS AT EACH END OF SAID MEMBER FOR CONNECTING IT INTO SAID ARRAY, A FLEXIBLE HIGH-DETONATION-VELOCITY DETONATING CORD EXTENDING THROUGH THE INTERIOR OF SAID MEMBER, THE LENGTH OF SAID CORD BEING SUBSTANTIALLY GREATER THAN THE MINIMUM LENGTH OF SAID MEMBER, AND MEANS FOR HOLDING THE ENDS OF SAID CORD SUBSTANTIALLY AT THE ENDS OF SAID MEMBER, ONE OF SAID CORD ENDS BEING MOVABLE RELATIVE TO
Claim 2
Dependent Claim
131 words
AN ADJUSTABLE DETONATION-TRANSMITTING DELAY UNIT FOR SPACING APART AND OPERATIVELY CONNECTING ADJACENT EXPLOSIVE CHARGES OF AN ELONGATED CHARGE ARRAY ADAPTED TO GENERATE SEISMIC WAVES AND TO MATCH THE DETONATION VELOCITY ALONG THE ARRAY TO THE SEISMIC-WAVE PROPOGATION VELOCITY OF A SURROUNDING MEDIUM, SAID DELAY UNIT COMPRISING A TUBULAR MEMBER OF A SUBSTANTIAL LENGTH AT LEAST EQUAL TO THE SPACING OF SAID ADJACENT CHARGES COUPLED THEREBY, COUPLING MEANS AT EACH END OF SAID MEMBER FOR CONNECTING IT INTO SAID ARRAY, A FLEXIBLE HIGH-DETONATION-VELOCITY DETONATING CORD EXTENDING THROUGH THE INTERIOR OF SAID MEMBER, THE LENGTH OF SAID CORD BEING SUBSTANTIALLY GREATER THAN THE MINIMUM LENGTH OF SAID MEMBER, AND MEANS FOR HOLDING THE ENDS OF SAID CORD SUBSTANTIALLY AT THE ENDS OF SAID MEMBER, ONE OF SAID CORD ENDS BEING MOVABLE RELATIVE TO
References Cited (Backward Citations)
US1312212A
Cited
US1493881A
Cited
US1988467A
Cited
US2377151A
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US2468274A
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US2609885A
Cited
US2775200A
Cited
US2823609A
Cited
US2808894A
Cited
US2887053A
Cited
US2755878A
Cited
US2796834A
Cited
US2992611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |