US3302731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Post driving and compacting machine
Assignee: Individual
•
Filing: 1965-09-27
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Granted: 1967-02-07
•
Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 James W Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:33
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/02; E02D7/06; E02D7/14; E02D7/16; E02D3/00; E02D3/02; E02D3/046; E02D7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
IN A POST DRIVING AND COMPACTING MACHINE THE COMBINATION OF: A GROUND SUPPORTED FRAME; FIRST MEANS VERTICALLY MOVABLY MOUNTED ON SAID GROUND SUPPORTED FRAME; A POST HOLDING AND GUIDING FRAME SUSPENDED FROM SAID FIRST MEANS; SUBSTANTIALLY PERPENDICULAR GUIDES ON SAID GUIDING FRAME FOR ENGAGING A POST TO BE DRIVEN INTO THE GROUND; A HAMMER CARRIAGE VERTICALLY MOVABLY MOUNTED ON SAID GUIDING FRAME; A POST ENGAGING MEMBER FIXED TO SAID HAMMER CARRIAGE AND ENGAGEABLE WITH AN UPPER END OF A POST GUIDED BY SAID GUIDES; A SECOND MEANS TENDING TO FORCE SAID HAMMER CARRIAGE DOWNWARDLY RELATIVE TO SAID GUIDING FRAME AND TO FORCE SAID POST ENGAGING MEMBER INTO FIRM CONTACT WITH A POST GUIDED BY SAID GUIDES; A VERTICALLY MOVABLE HAMMER ON SAID HAMMER CARRIAGE; AND POWER OPERATED MEANS DISPOSED TO ACTUATE SAID HAMMER VERTICALLY AND TO THEREBY SUCCESSIVELY CAUSE VERTICAL DOWNWARD IMPACT OF SAID HAMMER RELATIVE TO SAID HAMMER CARRIAGE TO THEREBY CAUSE THE FORCE OF SAID SUCCESSIVE IMPACT TO BE APPLIED TO SAID POST WHILE IT IS ALSO URGED DOWNWARDLY BY SAID SECOND MEANS AND SAID POST ENGAGING MEMBER.
Claim 2
Dependent Claim
180 words
IN A POST DRIVING AND COMPACTING MACHINE THE COMBINATION OF: A GROUND SUPPORTED FRAME; FIRST MEANS VERTICALLY MOVABLY MOUNTED ON SAID GROUND SUPPORTED FRAME; A POST HOLDING AND GUIDING FRAME SUSPENDED FROM SAID FIRST MEANS; SUBSTANTIALLY PERPENDICULAR GUIDES ON SAID GUIDING FRAME FOR ENGAGING A POST TO BE DRIVEN INTO THE GROUND; A HAMMER CARRIAGE VERTICALLY MOVABLY MOUNTED ON SAID GUIDING FRAME; A POST ENGAGING MEMBER FIXED TO SAID HAMMER CARRIAGE AND ENGAGEABLE WITH AN UPPER END OF A POST GUIDED BY SAID GUIDES; A SECOND MEANS TENDING TO FORCE SAID HAMMER CARRIAGE DOWNWARDLY RELATIVE TO SAID GUIDING FRAME AND TO FORCE SAID POST ENGAGING MEMBER INTO FIRM CONTACT WITH A POST GUIDED BY SAID GUIDES; A VERTICALLY MOVABLE HAMMER ON SAID HAMMER CARRIAGE; AND POWER OPERATED MEANS DISPOSED TO ACTUATE SAID HAMMER VERTICALLY AND TO THEREBY SUCCESSIVELY CAUSE VERTICAL DOWNWARD IMPACT OF SAID HAMMER RELATIVE TO SAID HAMMER CARRIAGE TO THEREBY CAUSE THE FORCE OF SAID SUCCESSIVE IMPACT TO BE APPLIED TO SAID POST WHILE IT IS ALSO URGED DOWNWARDLY BY SAID SECOND MEANS AND SAID POST ENGAGING MEMBER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |