Patent · US Expired

Apparatus for removing reels with exposed roll films from cartridges

US4621970A · kind A · utility

8Cited by

2References

20Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Reinhart Wurfel · Munich, DE
Helmut Zangenfeind · Puchheim, DE
Gunther Domges
Raimund Kugel · Munich, DE

Key dates

Filing date	Sep 20, 1985
Grant date	Nov 11, 1986
Priority date	—
Expiry date	Sep 20, 2005

Classification

Technology area (CPC G)Physics
CPC primaryG03D13/001
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Apparatus for expelling reels with convoluted exposed roll films from successive film cartridges has a gate which supports a cartridge at an opening station between an axially movable mandrel and an axially movable pusher. A holder with four or more equidistant idler wheels having sharp edges is adjacent to one end of the shell of the cartridge which is located between the mandrel and the pusher to hold the shell against axial movement with the pusher when the latter is shifted axially toward the mandrel to bear upon the core of the reel in the cartridge and to expel the reel as well as one end wall of the cartridge from the shell while the mandrel transmits or is ready to transmit torque to the core in a direction to wind the film onto the core. The idler rollers are thereupon disengaged from the shell and the gate is retracted so that the shell can leave the opening station by gravity before the next cartridge enters the opening station by gravity feed.

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