Zee wrench
US4050334A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 1976 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | May 12, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/48
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A wrench adaptable for freeing the jammed rotor of a sink garbage disposal unit. The wrench is in the form of a shaped solid bar formed with a straight shaft section the handle end of which is bent at an acute angle to the axis of the shaft section, with the opposed tool end of the bar bent in the plane of the handle section to lie perpendicular to the axis of the shaft section. The tool end of the bar is formed as a rectangular shaped section of a size to fit about upraised detents or cutting blades on the rotor of the garbage disposal unit so as to rock and free the rotor, when jammed, and the tool is of a size to fit into the drain outlet of the sink to which the disposal unit is attached and to extend beyond the drain, when installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.