US3177952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact tool
Assignee: Cambridge Thermionic Corp
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Filing: 1961-08-08
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Granted: 1965-04-13
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Expires: 1981-08-08
Abstract
No abstract record available.
Inventors
- 👤 Warren H West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:55
CPC Classifications
B; B25; B25D; B25D5/00; H; H01; H01R; H01R43/00; H01R43/26; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53174; Y10T29/53796; Y10T29/53839; Y10T29/53909; Y10T29/5393
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
AN IMPACT TOOL COMPRISING: AN ELONGATE FRAME; A SHAFT LONGITUDINALLY SLIDABLE RELATIVE TO SAID FRAME AND HAVING IMPACT ABUTMENTS; UNITARY HAMMER MEANS MOVABLE LONGITUDINALLY OF SAID SHAFT INTERMEDIATE SAID ABUTMENTS AND CAPABLE OF DELIVERING HAMMER BLOWS IN EITHER DIRECTION AGAINST SAID ABUTMENTS; OPPOSING SPRING MEANS INTERMEDIATE SAID FRAME AND SAID HAMMER MEANS CAPABLE OF EXERTING A FORCE TO INITIATE SAID BLOWS; UNITARY LATCH MEANS FOR LOCKING SAID SHAFT TO SAID HAMMER MEANS IN A NORMAL POSITION AND UPON MOVEMENT FROM SAID POSITION IN EITHER DIRECTION FOR GIVEN SPRING TENSIONING DISTANCES; AND MEANS FOR RELEASING SAID LATCH MEANS UPON DISPLACEMENT OF FRAME AND SHAFT THROUGH ONE OF SAID DISTANCES, INITIATING A SPRING BLOW WHOSE FORCE IS DIRECTED OPPOSITE TO THE DISPLACEMENT OF THE SHAFT.
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |