US3174559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque control mechanism for impact tools
Assignee: Ingersoll Rand Co
•
Filing: 1963-06-20
•
Granted: 1965-03-23
•
Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Jack S Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:25
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/145; B25B23/1453
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A PNEUMATIC POWER TOOL HAVING AN AIR MOTOR AND A HAMMER MEANS WHICH IS CONSTRUCTED AND ARRANGED TO DELIVER INTERMITTENT ROTARY IMPACT BLOWS ON AN ANVIL, A TORQUE CONTROL MECHANISM COMRPISING (A) AN ELONGATED TORSION MEANS DISPOSED COAXIALLY WITHIN SAID AIR MOTOR AND CONNECTED AT ONE END FOR COJOINED ROTATION WITH THE HAMMER MEANS AND AT THE OPPOSITE END FREE TO ROTATE RELATIVE TO THE HAMMERS MEANS, (B) MASS MEANS CONNECTED TO SAID FREE END OF SAID TORSION MEANS TO CAUSE THE TORSION MEANS TO TWIST UPON IMPACT AND DECELERATION OF THE HAMMER MEANS, (C) SAID MASS MEANS INCLUDING CAM MEANS AND INERTIA MEANS, (D) SAID INERTIA MEANS BEING SUBJECT TO ROTATE ACCELERATION UPON UNTWISTING OF SAID TORSION MEANS AND FREE TO OVERRIDE SAID TORSION MEANS AFTER THE LATTER HAS UNTWISTED,
Claim 2
Dependent Claim
132 words
IN A PNEUMATIC POWER TOOL HAVING AN AIR MOTOR AND A HAMMER MEANS WHICH IS CONSTRUCTED AND ARRANGED TO DELIVER INTERMITTENT ROTARY IMPACT BLOWS ON AN ANVIL, A TORQUE CONTROL MECHANISM COMRPISING (A) AN ELONGATED TORSION MEANS DISPOSED COAXIALLY WITHIN SAID AIR MOTOR AND CONNECTED AT ONE END FOR COJOINED ROTATION WITH THE HAMMER MEANS AND AT THE OPPOSITE END FREE TO ROTATE RELATIVE TO THE HAMMERS MEANS, (B) MASS MEANS CONNECTED TO SAID FREE END OF SAID TORSION MEANS TO CAUSE THE TORSION MEANS TO TWIST UPON IMPACT AND DECELERATION OF THE HAMMER MEANS, (C) SAID MASS MEANS INCLUDING CAM MEANS AND INERTIA MEANS, (D) SAID INERTIA MEANS BEING SUBJECT TO ROTATE ACCELERATION UPON UNTWISTING OF SAID TORSION MEANS AND FREE TO OVERRIDE SAID TORSION MEANS AFTER THE LATTER HAS UNTWISTED,
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |