Two-ended screwdriver bits
US6352011B1 · kind B1 · utility
57Cited by
0References
15Claims
0Family size
Inventor
Key dates
| Filing date | Aug 11, 2000 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Aug 11, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B15/001
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A two-ended screwdriver bit sized and configured to fit and lock in chucks that accept bits complying with American National Standards Institute specification ANSI B107.4-1982 for ¼ inch hexagonal bits. The two-ended bit has a hexagonal shank with two circumferentially-extending grooves in the screwdriver tip at each end of the shank. The length from the midpoint of each groove to the end of its adjacent screwdriver is ⅜ inches, permitting either end of the bit to be seated in a standard chuck.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.