Patent US3091506A successfully refreshed from Google Patents.
US3166168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact tool torsion bar
Assignee: Ingersoll Rand Co
•
Filing: 1961-04-10
•
Granted: 1965-01-19
•
Expires: 1981-04-10
Abstract
No abstract record available.
Inventors
- 👤 Hornschuch Hanns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:19
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/145; B25B23/1453; F; F16; F16D; F16D2300/00; F16D2300/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
FOR AN IMPACT TOOL HAVING A MOTOR, A ROTARY HAMMER, A ROTARY ANVIL, SAID MOTOR, HAMMER AND ANVIL BEING COAXIAL AND CENTRALLY APERTURED TO FORM A CONTINUOUS PASSAGE THERETHROUGH, MEANS COOPERATIVE WITH SAID HAMMER AND SAID ANVIL TO CAUSE SAID HAMMER TO IMPACT SAID ANVIL ROTATIVELY, A TORQUE LIMITING MEANS COMPRISING A RIGID TUBULAR MEMBER FIXEDLY ATTACHED TO SAID ANVIL AND EXTENDING THROUGH SAID PASSAGEWAY, A FLEXIBLE ROD EXTENDING THE LENGTH OF SAID IMPACT TOOL SUPPORTED BY SAID ANVIL AND EXTENDING THROUGH SAID TUBE TO RECEIVE A WRENCH SOCKETS, SCREWDRIVER BLADE AND THE LIKE, AND COUPLED TO SAID TUBE ADJACENT SUCH SOCKET, AND MEANS TO TWIST SAID FLEXIBLE ROD AT SAID ANVIL TO A PREDETERMINED TORQUE VALUE WITH RESPECT TO SAID TUBE.
Claim 2
Dependent Claim
122 words
FOR AN IMPACT TOOL HAVING A MOTOR, A ROTARY HAMMER, A ROTARY ANVIL, SAID MOTOR, HAMMER AND ANVIL BEING COAXIAL AND CENTRALLY APERTURED TO FORM A CONTINUOUS PASSAGE THERETHROUGH, MEANS COOPERATIVE WITH SAID HAMMER AND SAID ANVIL TO CAUSE SAID HAMMER TO IMPACT SAID ANVIL ROTATIVELY, A TORQUE LIMITING MEANS COMPRISING A RIGID TUBULAR MEMBER FIXEDLY ATTACHED TO SAID ANVIL AND EXTENDING THROUGH SAID PASSAGEWAY, A FLEXIBLE ROD EXTENDING THE LENGTH OF SAID IMPACT TOOL SUPPORTED BY SAID ANVIL AND EXTENDING THROUGH SAID TUBE TO RECEIVE A WRENCH SOCKETS, SCREWDRIVER BLADE AND THE LIKE, AND COUPLED TO SAID TUBE ADJACENT SUCH SOCKET, AND MEANS TO TWIST SAID FLEXIBLE ROD AT SAID ANVIL TO A PREDETERMINED TORQUE VALUE WITH RESPECT TO SAID TUBE.
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) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |