US3353362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pile driving
Assignee: Pan American Petroleum Corp
•
Filing: 1965-10-24
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Granted: 1967-11-21
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Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Lubinski Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:32
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/02; E02D7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE METHOD OF DRIVING A PILE BY A PERIODICALLY IMPACTING HAMMER IN WHICH THE CHARACTERISTIC MECHANICAL IMPEDANCE OF SAID HAMMER IS AT LEAST APPROXIMATELY EQUAL TO THAT OF SAID PILE STRIKING SAID HAMMER AND VARYING THE STRIKING VELOCITY OF SAID HAMMER UNTIL THERE IS LITTLE REBOUND OF SAID HAMMER AND LITTLE MOTION OF SAID PILE AFTER THE INITIAL MOVEMENT FOLLOWING EACH IMPACT AND THEREAFTER CONTINUING DRIVING SAID PILE.
Claim 2
Independent Claim
68 words
THE METHOD OF DRIVING A PILE BY A PERIODICALLY IMPACTING HAMMER IN WHICH THE CHARACTERISTIC MECHANICAL IMPEDANCE OF SAID HAMMER IS AT LEAST APPROXIMATELY EQUAL TO THAT OF SAID PILE STRIKING SAID HAMMER AND VARYING THE STRIKING VELOCITY OF SAID HAMMER UNTIL THERE IS LITTLE REBOUND OF SAID HAMMER AND LITTLE MOTION OF SAID PILE AFTER THE INITIAL MOVEMENT FOLLOWING EACH IMPACT AND THEREAFTER CONTINUING DRIVING SAID PILE.
References Cited (Backward Citations)
US3132706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |