Patent · US Expired

Multipart die for attachment of a metal clip

US4339940A · kind A · utility

16Cited by
7References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 5, 1980
Grant dateJul 20, 1982
Priority date
Expiry dateJun 5, 2000

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/53783
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A three part die forms a metal clip into a fixed diameter, circular configuration about a workpiece. The die is comprised of three separate die members which move radially toward and away from a fixed center point that defines the center of a first circle. A die engaging groove or channel is defined in the surface of each die member for cooperation with the metal clip. When the die is closed, the die channel defines a second circle which is concentric to the first circle.

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