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.

Date of Patent:
Aug. 23, 1988

Filed:

Apr. 20, 1987
Applicant:
Inventor:

Rex S Larsen, Rodovre, DK;

Assignee:

Eskofot A/S, Ballerup, DK;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03D / ;
U.S. Cl.
CPC ...
354302 ; 354299 ; 354320 ; 354338 ;
Abstract

A developing tray for feeding a sheet of positive material and a sheet of negative material through a bath of developer. A lid is mounted above the bath for reducing the evaporation of developer. Feed rollers are provided both at the input opening and at the output opening. The bottom of the tray is provided with ribs extending substantially in the feeding direction of the sheets. A wetting roller at the output opening is actuated by the feed rollers and is partly immersed in the developer. The evaporation from the output rollers and the wetting roller thereby provides a cooling compensating for the heat produced by the motor during the developing process. In this way a substantially constant temperature is maintained in the bath without special temperature adjusting devices as the cooling is proportional to the period of operation of the motor.


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Larsen, Rex. (1988). Developing tray (U.S. Patent No. 4766454). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4766454

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