Patent · US Expired

Processing apparatus

US5198848A · kind A · utility

1Cited by
3References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 17, 1992
Grant dateMar 30, 1993
Priority date
Expiry dateApr 17, 2012

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03D13/02
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Processing apparatus for image-wise exposed light-sensitive sheets of the DTR-type, which comprises a trough (11) for processing liquid, a sloping entry guide plate (17) for guiding a sheet towards its deepest point, a pair of outlet rollers (16) for pulling a sheet at a uniform speed through the apparatus and for squeezing liquid from it and replenishing means for keeping a processing liquid in the trough at a controlled level, which apparatus is provided with a floating cover (25) arranged for floating on the free surface of the processing liquid, and means for maintaining between the rear edge of the floating cover and the rear end of the trough a space (41) sufficient to allow unhindered passage of a processed sheet towards the outlet rollers.

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