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. 26, 1994
Filed:
Aug. 21, 1992
Barrie A Freeman, Wilmslow, GB;
Ilford Limited, Cheshire, GB;
Abstract
A photographic material processor which having at least two processing tanks for solutions used in the processing of photographic material, and one positive displacement pump for each processing solution for transferring concentrated processing solution and water to said processing tanks, the processor also comprising means for connecting each pump to a concentrated solution container and to a water source by a two-way valve, means for measuring the area of photographic material processed and means for activating the said pumps when a predetermined area of photographic material has been processed to perform a replenishment cycle, means for directing the liquid flow in each two-way valve so that during each replenishment cycle a predetermined volume of concentrate processing solution and a predetermined volume of water are pumped to the processing tanks by each PUMP.