Patent · US Expired

Floating clamp die

US4078411A · kind A · utility

7Cited by
9References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 15, 1976
Grant dateMar 14, 1978
Priority date
Expiry dateNov 15, 1996

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB21D7/024
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A clamp die for urging a tube against a rotatable bend die is mounted for limited translational and rotational motion so that its tube receiving cavity will accommodate and receive a portion of a bend previously made in the tube. Thus, one bend may be started closely adjacent a previous bend and little or no length of the straight and as yet unbent tube need extend forwardly of the point of tangency with the bend die in order to permit gripping by the floating clamp die.

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