B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
95/90
B01F 15/02 (2006.01) B01F 15/04 (2006.01)
Patent
CA 1126563
Abstract of the Disclosure A fluid mixing system and method is disclosed for automatically mixing precise concentrations of photo- graphic processing chemistry to be used in an X-ray film processor. The system produces a fresh batch of mixed solution whenever a previous batch has been reduced to a predetermined minimum volume. A pair of substantially identically constructed mixing units are provided to produce both developer and fixer solutions for film processing. Each unit has: a chemical supply structure for supplying chemicals from containerized supplied; a storage and mixing tank structure which underlies the chemical supply structure and defines a reservoir for mixing the chemistry with water; a water input valve for selectively introducing water under pressure into the tank structure; control apparatus for conditionally controlling operation of the water valve; and a chemical release assembly which is coupled to and actuated by the water valve. The chemical release assembly is operated by the pressure of the water as the water is admitted through the water valve. Operation of the release assembly causes piercing of the containers, allowing the chemistry to drain into the reservoir. The pressurized water creates a swirl for agitating and thoroughly mixing the chemistry and the water.
375033
Picker Corporation
Ridout & Maybee Llp
LandOfFree
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