Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1978-05-15
1979-04-10
Serwin, R. E.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
73422R, 422100, G01N 114
Patent
active
041488598
ABSTRACT:
Improvements in a backwash system for diluting apparatus wherein a rinse solution is directed to the fluid transfer valve thereof and thence back to and through the sample pick-up probe to a receptacle and then to a waste depositary. The receptacle is mounted on a carrier, in turn mounted for movement in a track from a recessed condition, along a path directed first outward and then upward to engage the delivery end of the sample probe in a fluid tight sealed coupling. A plunger of an air cylinder effects the movement of the receptacle in the track. A vacuum operated switch is employed to assure that the rinse solution will not be dispensed as backwash unless the sealed coupling is made. Alternatively, a microswitch can be substituted for the vacuum operated switch and presented in the path of the carrier to be actuated when the carrier has moved sufficiently to establish the sealed coupling between the receptacle and the delivery end of the sample probe. In either instance, the switch is scanned to ascertain its state and unless actuated, backwash is prevented.
REFERENCES:
patent: 3567389 (1971-03-01), Coulter et al.
patent: 3567390 (1971-03-01), Rothermel
patent: 3652228 (1972-03-01), Bernard
patent: 3976429 (1976-08-01), Ginsberg
patent: 3990853 (1976-11-01), Godin
patent: 3991055 (1976-11-01), Godin et al.
Cabrera Pedro P.
Simpson Ronald O.
Coulter Electronics Inc.
Serwin R. E.
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