US3186498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact tool
Assignee: ALBRITTON ENGINEERING Corp
•
Filing: 1961-10-02
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Granted: 1965-06-01
•
Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Jack A Roll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:47
CPC Classifications
B; B25; B25D; B25D11/00; B25D11/06; B25D11/10; B25D11/102; E; E01; E01C; E01C23/00; E01C23/06; E01C23/12; E01C23/122; E01C23/124; B25D2211/00; B25D2211/06; B25D2211/062; B25D2211/065; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
IN AN IMPACT TOOL HAVING A HOUSING, A DRIVING SHAFT MOUNTED IN THE HOUSING FOR ROTATION RELATIVE TO SAID HOUSING, A HAMMER ASSEMBLY IN THE HOUSING AND POSITIONED ABOUT THE SHAFT FOR AXIAL MOVEMENT RELATIVE TO SAID SHAFT, A CAM IN THE HOUSING ASSEMBLY, AT LEAST ONE ROLLER BEARING CONNECTED TO SAID SHAFT IN POSITION TO MATE WITH SAID CAM, A SPRING IN SAID HOUSING AND AROUND THE SHAFT URGING SAID HAMMER ASSEMBLY IN ONE DIRECTION TO PROVIDE AN IMPACT, THE IMPROVEMENT IN THE CAM COMPRISING, SAID CAM HAVING AN INCLINED SURFACE AND AN AXIALLY ALIGNED SHOULDER SURFACE PERMITTING SUDDEN AXIAL TRAVEL OF THE HAMMER ASSEMBLY IN SAID ONE DIRECTION, THE CAM SURFACE BETWEEN THE INCLINED SURFACE AND THE AXIALLY ALIGNED SHOULDER FORMING A SUBSTANTIALLY CON-
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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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |