US3088440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact tools
Assignee: Ingersoll Rand Co
•
Filing: 1960-08-01
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Granted: 1963-05-07
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Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 Richard K Wilmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:27
CPC Classifications
A; A22; A22B; A22B3/00; A22B3/02; B; B25; B25C; B25C1/00; B25C1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
AN IMPACT TOOL COMPRISING A BARREL, MEANS FIXEDLY SECURED IN THE BARREL FORMING A RESERVOIR IN THE BARREL, A VALVE ELEMENT MOVABLY MOUNTED IN THE BARREL, A HANDLE SECURED TO THE BARREL, A CONTROL VALVE MOVABLY MOUNTED IN THE HANDLE, A ROD HAVING ONE END SECURED TO THE CONTROL VALVE AND HAVING ITS OTHER END PROJECTING BEYOND THE FRONT END OF THE BARREL, A SAFETY DEVICE MOVABLY MOUNTED IN THE HANDLE AND IN ONE POSITION LOCKING THE CONTROL VALVE AGAINST MOVEMENT, AND UPON MOVEMENT TO A SECOND POSITION UNLOCKING SAID CONTROL VALVE SO AS TO ALLOW MOVEMENT OF SAID CONTROL VALVE UPON PUSHING THE ROD TOWARD THE HANDLE TO CAUSE THE VALVE ELEMENT TO MOVE AND ALLOW FLUID UNDER PRESSURE FROM THE RESERVOIR TO RUSH IN BEHIND THE PISTON AND DRIVE THE PISTON TOWARD THE FRONT END OF THE BARREL.
Claim 2
Dependent Claim
140 words
AN IMPACT TOOL COMPRISING A BARREL, MEANS FIXEDLY SECURED IN THE BARREL FORMING A RESERVOIR IN THE BARREL, A VALVE ELEMENT MOVABLY MOUNTED IN THE BARREL, A HANDLE SECURED TO THE BARREL, A CONTROL VALVE MOVABLY MOUNTED IN THE HANDLE, A ROD HAVING ONE END SECURED TO THE CONTROL VALVE AND HAVING ITS OTHER END PROJECTING BEYOND THE FRONT END OF THE BARREL, A SAFETY DEVICE MOVABLY MOUNTED IN THE HANDLE AND IN ONE POSITION LOCKING THE CONTROL VALVE AGAINST MOVEMENT, AND UPON MOVEMENT TO A SECOND POSITION UNLOCKING SAID CONTROL VALVE SO AS TO ALLOW MOVEMENT OF SAID CONTROL VALVE UPON PUSHING THE ROD TOWARD THE HANDLE TO CAUSE THE VALVE ELEMENT TO MOVE AND ALLOW FLUID UNDER PRESSURE FROM THE RESERVOIR TO RUSH IN BEHIND THE PISTON AND DRIVE THE PISTON TOWARD THE FRONT END OF THE BARREL.
References Cited (Backward Citations)
GB191302195A
Cited
US2677933A
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US2821170A
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US2854953A
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US2944522A
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US2979725A
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US2960067A
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US2872901A
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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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |