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:
Apr. 12, 1994
Filed:
Jan. 22, 1992
Applicant:
Inventors:
Duane J Farling, Webster, NY (US);
Steven M Bryant, Holley, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03D / ;
U.S. Cl.
CPC ...
354299 ; 354324 ;
Abstract
A compact developing apparatus that can quickly modify processing chemistries is disclosed. A web coated with a photograph emulsion or other photosensitive material forms one wall of a processing chamber and processing chemicals are introduced sequentially into the stationary chamber. The heating of the processing chemicals to their required temperatures is accomplished by applying microwave energy to the chemicals upstream of the chamber. The heating is controlled by a programmed digital computer to provide forward and backward feedback control of the microwave output in response to temperature and flow rate measurements.