Hand-held tool with shaft lock
US4804048A · kind A · utility
44Cited by
10References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1983 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Feb 4, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/35
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hand-held power screwdriver or like tool includes a spindle which is adapted to receive and retain tool bits for rotation thereon. A collet ring is retained with a recess on the housing for slidable movement along the spindle axis. The collet functions as a selectable spindle locking device whereby the tool may be operated as a manual screwdriver or the like by selectively positioning the collet to rigidly lock the spindle in fixed relationship to the tool housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.