Patent · US Expired

Apparatus for opening film cassettes

US4087033A · kind A · utility

2Cited by

6References

11Claims

0Family size

Assignee

AGFA-Gervaert AG · DE

Inventors

Gunther Domges
Hartmut Scheller
Helmut Zangenfeind · Puchheim, DE

Key dates

Filing date	Jul 19, 1976
Grant date	May 2, 1978
Priority date	—
Expiry date	Jul 19, 1996

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T225/325
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Apparatus for opening substantially rigid synthetic plastic film cassettes of the type having a pay-out section and a film take-up section which are connected by a film-guiding web section of U-shaped cross-section, has first instrumentalities which engage and immovably hold the take-up section, and second instrumentalities which exert upon the pay-out and/or web sections a force sufficient to displace these sections relative to the take-up section to an extent adequate to cause the cassette to crack open.

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