Patent · US Expired

Photographic copying machine for use with mobile cassettes

US5132725A · kind A · utility

2Cited by
4References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 13, 1991
Grant dateJul 21, 1992
Priority date
Expiry dateSep 13, 2011

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B27/462
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A photographic copying machine has a copying unit which must receive a web of unexposed photosensitive web material well above the floor level. The web material is confined in cassettes which must be lifted before they reach a level in which the web material which is confined therein can be drawn into the copying unit. In order to facilitate manual manipulation of a relatively heavy and bulky cassette, the latter is provided with handless and with one part of a separable coupling which constitutes a hinge and enables the person in charge to pivot the cassette to an upright position subsequent to manual lifting approximately to the chest level. If necessary, the pivoted cassette is thereupon pushed into a chamber of the copying unit. A cassette for reception and storage of freshly exposed photosensitive web material can be manipulated in the same way.

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