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:
Feb. 19, 1991
Filed:
Mar. 16, 1990
Applicant:
Inventors:
Douglas O Hall, Canadaigua, NY (US);
Bruce R Muller, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354324 ; 354322 ;
Abstract
Factors affecting the quality of the development of a photosensitive material include the characteristics of a processing fluid flow in contact with the material. A uniform turbulent fluid flow is created in a photographic processing apparatus by utilizing the height of the fluid in a tank for retaining the processing fluid. The height of the fluid creates a fluid pressure which is utilized in determining the flowrate of the fluid in the processing apparatus. An uncomplicated, low friction fluid flow is also created which allows for a more efficient, lower cost photographic processing apparatus.