Locking pliers with movable torque-increasing jaw section
US11247308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2018 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Dec 25, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/5058
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Pliers are provided. Pliers include an upper handle, a lower handle, an upper jaw coupled to the upper handle, and a lower jaw coupled to the lower handle. In general, the upper jaw includes workpiece engagement surface, such a first set of teeth configured to engage a workpiece, and the lower jaw includes a workpiece engagement surface, such as a second set of teeth and a third set of teeth. The lower jaw opposes the upper jaw such that the first set of teeth faces the second set of teeth and the third set of teeth. At least a section of the workpiece engagement surface of the lower jaw is movably coupled to the lower jaw such that it moves relative to the lower as torque is applied to a workpiece, thereby increasing torque applied to the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.