8 in 1 tool bit driver hand tool
US5904080A · kind A · utility
Inventors
Key dates
| Filing date | Nov 24, 1997 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Nov 24, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25F1/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hand tool for torquing a fastener by means of at least one hexagonal cavity in an outer reversible coupling member, and a pair of inner, hexagonal shaped, reversible coupling members having differently sized hexagonal cavities than that of said at least one hexagonal cavity of said outer reversible coupling member. The inner, hexagonal shaped reversible coupling members being removably retained in the at least one hexagonal cavity of said outer coupling member, and a handle having cavity means of a size and shape for removably retaining the outer reversible coupling member, and for driving another differently sized hexagonal fastener; whereby the hand tool is capable of driving differently sized hexagonal fasteners depending upon at least the hexagonal cavities of the outer reversible coupling member and the inner, hexagonal shaped reversible coupling members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.