Process for the manufacture of film cartridges

US4867815A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Franz Hoffacker · Langenfeld, DE
• Hermann Luhrig · Leverkusen, DE
• Albert Maier · Tübingen, DE

Key dates

• Filing date: Oct 5, 1987
• Grant date: Sep 19, 1989
• Expiry date: Oct 5, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/1038
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

In a process for the manufacture of film cartridges which have a substantially cyclindrical wall, a film opening extending along a generating line of the cylinder and caps at the ends, one plate per cartridge is separated from a flat strip of material to form the cartridge wall, which strip of material contains the plates for several cartridges and has a width corresponding to the circumference of a cartridge wall, and the said strip of material is fitted continuously with a sealing material along at least one of the edges for the film opening before the plates are separated, the said sealing material being delivered to the strip of material in the form of endless band of sealing strips which are bonded to the strip of material as they pass through a glueing station.