Patent · US Expired

Twist-shearing apparatus

US5065653A · kind A · utility

6Cited by
6References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 23, 1990
Grant dateNov 19, 1991
Priority date
Expiry dateAug 23, 2010

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T83/8805
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

An apparatus for shearing extruded stock includes a stationary die and a rotatable die mounted adjacent one another wherein the rotatable die moves through a limited angle of rotation through the operation of a cam acting on a lever linked to the spindle in which the rotatable die is mounted. The cam undergoes a full 360.degree. of rotation although the rotatable die undergoes a limited angle of rotation. A spring or regulated pneumatic cylinder is provided to bias the rotatable die to the home position after cutting of the extruded stock.

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