Patent · US Expired

Cutting tool for longitudinally cutting continuous sheets of film

US3977285A · kind A · utility

3Cited by

3References

3Claims

0Family size

Assignee

AGFA-Gervaert AG · DE

Inventors

Albert Perztsch
Anton Riedel
Werner Wilke · Cologne, DE
Michael Mehltretter · Munich, DE

Key dates

Filing date	Feb 3, 1975
Grant date	Aug 31, 1976
Priority date	—
Expiry date	Feb 3, 1995

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T83/9403
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A cutting tool consists of circular, rotatably mounted upper and lower blades, the upper blade extending past the periphery of the cutting shoulder of the lower blade and bearing resiliently against it. The thickness of the cutting shoulder of the lower blade is less than the distance of the said extending of the upper blade, and the material hardness of the upper blade is greater than that of the lower blade.

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