Self adjusting utility pliers
US6311588A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2000 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Jan 14, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B7/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Self-adjusting pliers including first and second members each handle portions and jaw portions. The first member defines a rack having a plurality of teeth. A rack engagement structure is mounted to an intermediate portion of the second member and positioned adjacent the rack. During initial manual movement of the handle portions towards one another, the rack engagement structure travels in disengaged, spaced relation with respect to the rack. Then, after the jaw portions engage opposing sides of a workpiece, continued movement of the handle portions towards one another causes movement of the rack engagement structure toward the rack until the rack engagement structure engages the rack. The rack engagement structure has a movement restrictive portion being cooperable with the rack so as to limit the movement of the rack engagement structure toward the rack when the jaw portions contact one another in the absence of a workpiece therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.