Patent · US Expired

Clamp apparatus

US6997447B2 · kind B2 · utility

14Cited by
4References
29Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 19, 2003
Grant dateFeb 14, 2006
Priority date
Expiry dateJan 30, 2024

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB25B5/16
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A clamp apparatus converts the rectilinear motion of a cylinder into the rotary motion by means of a toggle mechanism to clamp a workpiece by using an arm. A release projection is covered with a top cover made of metal, preferably with a top cover coated with a material excellent in smoothness. When the arm is going to be unlocked by using the release projection, a tongue of the top cover is lifted upwardly to open the top cover, and the release projection is pushed and moved downwardly.

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