US3230781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic impact assembly
Assignee: Individual
•
Filing: 1962-11-09
•
Granted: 1966-01-25
•
Expires: 1982-11-09
Abstract
No abstract record available.
Inventors
- 👤 Dubilier William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:38
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/02; E02D7/06; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18088; Y10T74/18096; Y10T74/18104
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A POWER DRIVEN HAMMER COMPRISING A HAMMER ASSEMBLY INCLUDING A PRIMER MOVER CONNECTED THERETO AND DISPLACEABLE IN CONJUNCTION THEREWITH, A GUIDE STRUCTURE SUPPORTING SAID ASSEMBLY FOR RECIPROCABLE MOTION INTERMEDIATE AN ADVANCED AND RETRACTED POSITION, AND MEANS FOR RECIPROCATING SAID ASSEMBLY, SAID MEANS COMPRISING AN AUTOMATIC DRIVE ELEMENT SELECTIVELY CONNECTABLE BETWEEN SAID PRIME MOVER SAID GUIDE STRUCTURE IN RESPONSE TO THE POSITIONABLE DISPOSITION OF SAID HAMMER ASSEMBLY RELATIVE TO THE LIMITS OF RECIPROCATION THEREOF TO PERIODICALLY DISPLACE SAID ASSEMBLY FROM SAID ADVANCED TO SAID RETRACT-
Claim 2
Dependent Claim
84 words
A POWER DRIVEN HAMMER COMPRISING A HAMMER ASSEMBLY INCLUDING A PRIMER MOVER CONNECTED THERETO AND DISPLACEABLE IN CONJUNCTION THEREWITH, A GUIDE STRUCTURE SUPPORTING SAID ASSEMBLY FOR RECIPROCABLE MOTION INTERMEDIATE AN ADVANCED AND RETRACTED POSITION, AND MEANS FOR RECIPROCATING SAID ASSEMBLY, SAID MEANS COMPRISING AN AUTOMATIC DRIVE ELEMENT SELECTIVELY CONNECTABLE BETWEEN SAID PRIME MOVER SAID GUIDE STRUCTURE IN RESPONSE TO THE POSITIONABLE DISPOSITION OF SAID HAMMER ASSEMBLY RELATIVE TO THE LIMITS OF RECIPROCATION THEREOF TO PERIODICALLY DISPLACE SAID ASSEMBLY FROM SAID ADVANCED TO SAID RETRACT-
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |