Chemistry: physical processes – Physical processes – Crystallization
Patent
1974-08-22
1976-04-06
Reese, Robert M.
Chemistry: physical processes
Physical processes
Crystallization
23253R, 73423A, G01N 114, G01N 118
Patent
active
039486052
ABSTRACT:
A diluter for use in a kinetic analysis apparatus for picking up a serum sample from a container and diluting it into a reaction cup in which a diluter probe mounted for vertical translation and horizontal rotational motion is coupled to a sample pump with the sample pump coupled to a diluter pump and wherein the probe is caused to be lowered into a container of serum sample after which said sample pump draws into said probe a measured amount of sample whereupon said probe is raised, rotated and then lowered to a position over a reaction cup; the diluter pump is then operated to discharge said sample along with a measured amount of diluent. Vertical translation and horizontal rotation of the probe is achieved by means of a pair of coaxially disposed cylindrical cam members one of which is fixed and the other rotatable about the common axis. Cut-out portions in the cam members define respective coacting camming surfaces which are engaged by and control the vertical position of a radial probe-supporting arm as it rotates about the common axis between respective limit positions where the probe overlies the sample container and reaction cup.
REFERENCES:
patent: 2660088 (1953-11-01), Serra
patent: 3197285 (1965-07-01), Rosen
patent: 3427135 (1969-02-01), Pelavin et al.
patent: 3475130 (1969-10-01), Baruch
patent: 3552212 (1971-01-01), Ohlin
patent: 3594129 (1971-07-01), Jones
patent: 3800984 (1974-04-01), Phelan
Atwood John G.
De Mey II Charles F.
Ducret Lucien C.
Conant J. K.
Giarratana S. A.
Masselle F. L.
Reese Robert M.
The Perkin-Elmer Corporation
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