Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Reexamination Certificate
2008-05-20
2008-05-20
Warden, Jill (Department: 1797)
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
C422S067000, C422S091000, C073S864020, C073S864910
Reexamination Certificate
active
07374723
ABSTRACT:
A device, process and system are provided for collecting and releasing a liquid sample, especially saliva. A defined saliva sample, i.e., a filtered, approximately homogeneously mixed saliva sample of a predetermined volume is made available in the simplest possible manner. A sampling tip (2) is provided made of a dimensionally stable and porous material, which is moved with its mouthpiece (4) in the mouth of a test subject for one to two minutes and takes up saliva based on the capillary action. A reagent liquid enters the pores of the sampling tip (2), mixes with the saliva there and is subsequently fed from a reagent depot by the action of pressure. The saliva and the reagent liquid are finally discharged as a droplet (40) in the filtered and mixed state, either into the cavity (10) of the sample collector or into a filter mixer.
REFERENCES:
patent: 3985032 (1976-10-01), Avakian
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patent: 4978504 (1990-12-01), Nason
patent: 5567309 (1996-10-01), Classon et al.
patent: 6129894 (2000-10-01), Rabenecker et al.
patent: 6488894 (2002-12-01), Miethe et al.
Bauch Torben
Mahn Jessica
Polzius Rainer
Wuske Thomas
Dräger Safety AG & Co. KGaA
McGlew and Tuttle , P.C.
Moss Keri A
Warden Jill
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