Patent US3172485A successfully refreshed from Google Patents.
US3172485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Downcrowding arrangement for pile driving and the like
Assignee: Raymond International Inc
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Filing: 1963-05-07
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Granted: 1965-03-09
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Expires: 1983-05-07
Abstract
No abstract record available.
Inventors
- 👤 Ernst W Spannhake
- 👤 George J Gendron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:59
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN APPARATUS FOR DRIVING OBJECTS INTO THE EARTH BY THE USE OF DRIVING MEANS WHICH APPLIES DRIVING IMPLUSES THERETO: CABLE MEANS EXTENDING DOWNWARDLY UNDER TENSION FROM THE DRIVING MEANS FOR APPLYING A DOWNCROWDING FORCE THERETO; WINCH MEANS FOR WINDING THE CABLE MEANS AND RETAINING SAME UNDER TENSION; MEANS THROUGH WHICH THE CABLE IS REEVED PRIOR TO PASSING TO SAID WINCH MEANS; AND HYDRAULIC MEANS FOR CONTROLLING THE TENSION OF THE CABLE MEANS IN SAID REEVING MEANS TO TAKE UP SLACK IN THE
Claim 2
Dependent Claim
82 words
IN APPARATUS FOR DRIVING OBJECTS INTO THE EARTH BY THE USE OF DRIVING MEANS WHICH APPLIES DRIVING IMPLUSES THERETO: CABLE MEANS EXTENDING DOWNWARDLY UNDER TENSION FROM THE DRIVING MEANS FOR APPLYING A DOWNCROWDING FORCE THERETO; WINCH MEANS FOR WINDING THE CABLE MEANS AND RETAINING SAME UNDER TENSION; MEANS THROUGH WHICH THE CABLE IS REEVED PRIOR TO PASSING TO SAID WINCH MEANS; AND HYDRAULIC MEANS FOR CONTROLLING THE TENSION OF THE CABLE MEANS IN SAID REEVING MEANS TO TAKE UP SLACK IN THE
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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |