Tap chuck crank
US4968194A · kind A · utility
2Cited by
12References
2Claims
0Family size
Inventor
Key dates
| Filing date | May 9, 1988 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | May 9, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/96
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hand crank for use on a drill press mounted chuck during a tapping operation. The crank comprises a body having an aperture which permits the crank to be installed on and in surrounding relationship to the drill press chuck body. A spring biased pin enters into the wrench anchor hole of the chuck body to secure the crank to the chuck. The illustrated crank has four equally spaced radial arms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.