US3302732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact tool
Assignee: Hughes Tool Co
•
Filing: 1963-10-28
•
Granted: 1967-02-07
•
Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Jack A Roll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:15
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/12; E01C23/122; E01C23/124; Y; Y10; Y10S; Y10S173/00; Y10S173/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 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 CONNECTED TO THE HAMMER ASSEMBLY, AT LEAST ONE BEARING FOLLOWER CONNECTED TO SAID SHAFT AND POSITIONED TO MATE WITH SAID CAM TO RETRACT SAID HAMMER ASSEMBLY AS THE DRIVING SHAFT IS ROTATED, SAID CAM HAVING AN INCLINED SURFACE AND AN AXIALLY ALIGNED SHOULDER SURFACE PERMITTING SUDDEN AXIAL TRAVEL OF THE HAMMER ASSEMBLY IN ONE DIRECTION, A SPRING IN SAID HOUSING AND AROUND THE SHAFT URGING SAID HAMMER ASSEMBLY IN SAID ONE DIRECTION TO PROVIDE AN IMPACT, THE IMPROVEMENT COMPRISING,
Claim 2
Dependent Claim
119 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 CONNECTED TO THE HAMMER ASSEMBLY, AT LEAST ONE BEARING FOLLOWER CONNECTED TO SAID SHAFT AND POSITIONED TO MATE WITH SAID CAM TO RETRACT SAID HAMMER ASSEMBLY AS THE DRIVING SHAFT IS ROTATED, SAID CAM HAVING AN INCLINED SURFACE AND AN AXIALLY ALIGNED SHOULDER SURFACE PERMITTING SUDDEN AXIAL TRAVEL OF THE HAMMER ASSEMBLY IN ONE DIRECTION, A SPRING IN SAID HOUSING AND AROUND THE SHAFT URGING SAID HAMMER ASSEMBLY IN SAID ONE DIRECTION TO PROVIDE AN IMPACT, THE IMPROVEMENT COMPRISING,
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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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |