Patent US3109500A successfully refreshed from Google Patents.
US3109500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pile pulling machine
Assignee: Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
•
Filing: 1959-05-11
•
Granted: 1963-11-05
•
Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Glawon Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:27
CPC Classifications
E; E02; E02D; E02D9/00; E02D9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A MACHINE FOR PULLING PILES, BOARDS, AND THE LIKE: A PULL ROD, A STRIKING PLATE CONNECTED TO SAID PULL ROD, CONNECTING MEANS SUPPORTED BY SAID PULL ROD FOR CONNECTION WITH THE ARTICLE TO BE PULLED, A PLURALITY OF CYLINDER-PISTON SYSTEMS, EACH OF SAID CYLINDER-PISTON SYSTEMS COMPRISING A POWER OPERABLE RECIPROCABLE MEMBER, AND A STRIKING BODY COAXIALLY ARRANGED WITH REGARD TO SAID PULL ROD AND MOVABLE RELATIVE THERETO FOR STRIKING AGAINST SAID STRIKING PLATE TO THEREBY EXERT AN IMPACT ON SAID PULL ROD, SAID
Claim 2
Dependent Claim
84 words
IN A MACHINE FOR PULLING PILES, BOARDS, AND THE LIKE: A PULL ROD, A STRIKING PLATE CONNECTED TO SAID PULL ROD, CONNECTING MEANS SUPPORTED BY SAID PULL ROD FOR CONNECTION WITH THE ARTICLE TO BE PULLED, A PLURALITY OF CYLINDER-PISTON SYSTEMS, EACH OF SAID CYLINDER-PISTON SYSTEMS COMPRISING A POWER OPERABLE RECIPROCABLE MEMBER, AND A STRIKING BODY COAXIALLY ARRANGED WITH REGARD TO SAID PULL ROD AND MOVABLE RELATIVE THERETO FOR STRIKING AGAINST SAID STRIKING PLATE TO THEREBY EXERT AN IMPACT ON SAID PULL ROD, SAID
References Cited (Backward Citations)
US1310408A
Cited
DE510878C
Cited
GB191405924A
Cited
GB765031A
Cited
US2804857A
Cited
US2942590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |