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. 21, 1981
Filed:
Nov. 23, 1979
Otto Stemme, Munich, DE;
Berthold Fergg, Taufkirchen, DE;
Viktor Osegowitsch, Taufkirchen, DE;
Wolfgang Viehrig, Munich, DE;
AGFA-Gevaert, A.G., Leverkusen, DE;
Abstract
An apparatus for exposing and developing film units which have pairs of overlapping positive and negative sheets and must be subjected to a diffusion treatment subsequent to treatment with a liquid developing agent has an exposing unit above a light duct which is disposed above a compartment for cassettes containing stacks of superimposed film units. The compartment is located above a diffusion chamber and is adjacent to a relatively small casing for a developing unit containing a liquid developing agent and provided with pairs of advancing rolls for the transport of freshly exposed film units from the cassette in the compartment, through the casing and the developing agent therein, and thereupon into the diffusion chamber. The developing unit has a device which temporarily separates the sheets of a film unit during transport through the developing agent. The dimensions of the apparatus are sufficiently small to warrant its use in private homes by amateur photographers in order to make enlarged prints of color photographic negatives.