The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 1978
Filed:
Nov. 16, 1976
Applicant:
Inventor:
Klaus Kummerl, Nuremberg, DE;
Assignee:
Durst AG. Fabrik Fototechnischer Apparate, Bolzano-Bozen, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03D / ;
U.S. Cl.
CPC ...
354321 ; 354338 ; 134 / ; 1341 / ; 118424 ;
Abstract
A closed container for wet processing photographic strip or sheet materials such as film or printing paper has a cover piece which rests upon several of the conveying rollers. The cover piece has indentations in its lower surface which correspond to the outer surfaces of the rollers to smoothly engage them with intermediate portions of the cover piece being submerged in the processing liquid. This minimizes the contact of the air in the container with the wet surfaces of the rollers partially submerged in the liquid and inbetween them, which thus minimizes oxidation of the processing baths.