Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1988-05-26
1990-11-27
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
422100, 422 681, 422 81, 422102, 436 63, 436178, 436180, 7386323, 7386383, 7386434, 7386483, G01N 110
Patent
active
049734504
ABSTRACT:
A device for urinalysis, in particular for microscopic quantitative analysis of urinary sediment, consists of a cylindrical specimen container with an opening at the top and a pipette tip at the bottom end, a tubular plunger inserted into this specimen container and moveable therein in a leakproof manner, both parts consisting of transparent material, a stopper for the specimen container at the top end and a sealing cap for the pipette tip, a single-stage or multi-stage filter arrangement being located in the plunger close to the bottom end.
REFERENCES:
patent: 3512940 (1970-05-01), Shapiro
patent: 3846077 (1974-11-01), Ohringer
patent: 4533643 (1985-08-01), Bell et al.
Hoyer GmbH and Company
Kummert Lynn M.
Warden Robert J.
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