Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1978-04-21
1980-10-21
Scovronek, Joseph
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
734256, 222380, B01L 302, G01N 114
Patent
active
042294134
ABSTRACT:
The present invention relates to an adjustable device for distributing liquid samples, comprising a casing incorporating a mechanism for adjusting the volume and a volume indicator unit; a tip member which comprises a lateral supply tube, provided with means allowing the tight adaptation of a reservoir; a measuring chamber arranged in said tip member so as to receive, with a slight clearance, a calibrated piston elastically urged upwardly and the upper end of which cooperates with a stop for limiting the upward stroke, adjustable in position by means of the adjusting mechanism; a control shaft, of which the lower end cooperates with the upper end of the calibrated piston and means ensuring the tightness of the measuring chamber. The invention finds particular application to the continuous distribution of liquid.
REFERENCES:
patent: 3461805 (1969-08-01), Karkow
patent: 3572130 (1971-03-01), Goldsmith
patent: 3800984 (1974-04-01), Phelan
patent: 3827305 (1974-08-01), Gilson et al.
patent: 3948607 (1976-04-01), Atwood et al.
patent: 3955930 (1976-05-01), Shapiro
patent: 4003499 (1977-01-01), Shapiro et al.
patent: 4011685 (1977-03-01), Boyd et al.
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