Patent US3072232A successfully refreshed from Google Patents.
US3072232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary impact tool
Assignee: Airetool Manufacturing Co
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Filing: 1960-12-02
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Granted: 1963-01-08
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Expires: 1980-12-02
Abstract
No abstract record available.
Inventors
- 👤 Paul W Martin
- 👤 Robert E Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:31
CPC Classifications
B; B25; B25B; B25B21/00; B25B21/02; B25B21/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
IN A ROTARY IMPACT TOOL; A CASING, A ROTARY SPINDLE EXTENDING INTO THE CASING AT ONE END, A HAMMER MEMBER OF SUBSTANTIAL MASS ROTATABLE IN THE CASING AND SURROUNDING THE INNER END OF THE SPINDLE, SAID HAMMER HAVING A LATERAL BORE RECTANGULAR IN CROSS-SECTION, A RING-LIKE ENGAGEMENT CAM MEMBER ALSO RECTANGULAR IN CROSS SECTION FREELY SLIDABLY FITTING SAID BORE AND HAVING A SMALLER DIMENSION LATERALLY THAN THE DIMENSION OF THE HAMMER SO AS TO BE LATERALLY SLIDABLE IN SAID BORE, SAID ENGAGEMENT CAM MEMBER SURROUNDING THE INNER END OF THE SPINDLE AND SAID CAM AND SPINDLE HAVING COOPERATING GENERALLY RADIAL ABUTMENT SURFACES ENGAGEABLE IN ONE LATERALLY SHIFTED POSITION OF SAID ENGAGEMENT CAM MEMBER AND BEING DISENGAGED IN THE OTHER LATERALLY SHIFTED POSITION OF SAID ENGAGEMENT CAM MEMBER, THE ABUTMENT SURFACE MEANS ON SAID ENGAGEMENT CAM MEMBER BEING PARALLEL TO THE SIDES THEREOF THAT ENGAGE THE AXIAL SURFACES OF THE BORE IN THE HAMMER, A ROTARY ACTUATOR IN THE BORE IN SAID HAMMER BETWEEN ONE END WALL OF THE BORE AND THE ADJACENT END OF SAID CAM MEMBER, SAID ACTUATOR HAVING RADIALLY EXTENDING DRIVE WING MEANS THEREON HAVING AN-
Claim 2
Dependent Claim
188 words
IN A ROTARY IMPACT TOOL; A CASING, A ROTARY SPINDLE EXTENDING INTO THE CASING AT ONE END, A HAMMER MEMBER OF SUBSTANTIAL MASS ROTATABLE IN THE CASING AND SURROUNDING THE INNER END OF THE SPINDLE, SAID HAMMER HAVING A LATERAL BORE RECTANGULAR IN CROSS-SECTION, A RING-LIKE ENGAGEMENT CAM MEMBER ALSO RECTANGULAR IN CROSS SECTION FREELY SLIDABLY FITTING SAID BORE AND HAVING A SMALLER DIMENSION LATERALLY THAN THE DIMENSION OF THE HAMMER SO AS TO BE LATERALLY SLIDABLE IN SAID BORE, SAID ENGAGEMENT CAM MEMBER SURROUNDING THE INNER END OF THE SPINDLE AND SAID CAM AND SPINDLE HAVING COOPERATING GENERALLY RADIAL ABUTMENT SURFACES ENGAGEABLE IN ONE LATERALLY SHIFTED POSITION OF SAID ENGAGEMENT CAM MEMBER AND BEING DISENGAGED IN THE OTHER LATERALLY SHIFTED POSITION OF SAID ENGAGEMENT CAM MEMBER, THE ABUTMENT SURFACE MEANS ON SAID ENGAGEMENT CAM MEMBER BEING PARALLEL TO THE SIDES THEREOF THAT ENGAGE THE AXIAL SURFACES OF THE BORE IN THE HAMMER, A ROTARY ACTUATOR IN THE BORE IN SAID HAMMER BETWEEN ONE END WALL OF THE BORE AND THE ADJACENT END OF SAID CAM MEMBER, SAID ACTUATOR HAVING RADIALLY EXTENDING DRIVE WING MEANS THEREON HAVING AN-
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |