Rotary shear valve with cleaning feature and method of using sam

Details Rotary shear valve with cleaning feature and method of using sam Rotary shear valve with cleaning feature and method of using sam

1986-06-09

1989-04-18

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

7386373, 7386412, 251355, G01N 100, B67D 500

Patent

active

048225690

ABSTRACT:
A rotary shear valve comprising two stators and a rotor is filled with specimen in a first rotary position. Movement of the rotor to a second rotary position divides the specimen into aliquots, one or more of which are dispensed in the second rotary position. A cleaning cycle is provided in which cleaning solution is introduced, with the rotor in a third rotary position, into circumferentially-extending arced grooves formed in the rotor faces, which contacts in the third rotary position those portions of the rotor faces likely to contain smeared specimen. The requirement for disassembly for cleaning is thereby reduced.

REFERENCES:
patent: 4587219 (1986-05-01), Claren et al.
patent: 4702889 (1987-10-01), Cabrera et al.
patent: 4726932 (1988-02-01), Feier et al.

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