Self-adjusting plier-type locking tool
US6408724B1 · kind B1 · utility
21Cited by
28References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1996 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Mar 18, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B7/123
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An adjustable locking pliers-type tool has a first handle provided with a fixed jaw, a movable jaw pivotally connected to the first handle, a second handle pivotally connected to the movable jaw, and a toggle linkage system cooperatively connected between the two handles. The linkage system includes a toggle link connected to one of a pair of wedges disposed in the first handle and coacts through a shoulder thereon with the second wedge. The two wedges are magnetically attracted into close contact with a floater plate separating the wedges with a force sufficient to prevent formation of oil films between their mating surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.