Patent · US Expired

Spring-tensioning pliers

US5791210A · kind A · utility

26Cited by

6References

3Claims

0Family size

Assignee

wolfcraft GmbH · DE

Inventors

Friedrich Wolff · Scheinfeld, DE
Manfred Lang · Wuppertal, DE

Key dates

Filing date	Oct 10, 1997
Grant date	Aug 11, 1998
Priority date	—
Expiry date	Oct 10, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25B7/04
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Spring-tension pliers are disclosed having two clamping arms (2, 3) mounted see-saw fashion on a pivot pin (1), the arms forming a handle (4) with their legs, the legs being pivotable toward one another against the force of a spring (5) to open a clamping mouth formed by the other ends of the legs (6), with clamping jaws (7) being associated with the free ends of the clamping legs (6). The clamping jaws (7) are pivotable around a pivot axis (8') parallel to the pivot joint axis, end sections (9) of the clamping legs are rounded concentrically with respect to jaw pivot axis (8'), and these rounded areas (11) each fit into a correspondingly rounded recess (10) of the clamping jaws.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.