Patent · US Expired

Tool set for connecting superposed sheet metal work pieces

US4928370A · kind A · utility

6Cited by

6References

16Claims

0Family size

Inventors

Gerd-Jurgen Eckold · Braunlage, DE
Hans Maass

Key dates

Filing date	Mar 17, 1989
Grant date	May 29, 1990
Priority date	—
Expiry date	Mar 17, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/53709
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A press-driven tool set for joining sheet metal work pieces comprises a die member and a punch member. The die member includes an anvil spaced by a deep gap from a forming member. Deformed material may flow into the gap without filling it so as to cope with thickness tolerances. Debris, such as oil and chips, may collect in the gap. The forming member may be comprised of segments which can be spread apart, facilitating removal of connected work pieces.

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