Uni-hex key wrench
US6314844A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Apr 4, 2000 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Apr 4, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25G1/063
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A wrench comprising two driving stems pivotally connected with each other. One of the driving stems has a main body and a flat portion, protruding from the main body with a hole at a center thereof. The other driving stem has the other main body and the other flat portion protruding from the other main body with at a center thereof. A pair of hinges having two holes aligned with the holes of the flat portions protruding from the main bodies of the driving stems, respectively, is used. Two sets of bolts and nuts are used to be threaded through the holes of the hinges, the flat portion protruding from main bodies of the first and the second driving stems, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.