Dispensing – Plural sources – compartment – containers and/or spaced jacket – Three or more diverse sources
Patent
1975-03-12
1976-06-15
Knowles, Allen N.
Dispensing
Plural sources, compartment, containers and/or spaced jacket
Three or more diverse sources
222134, 222137, 23259, B67D 560
Patent
active
039631486
ABSTRACT:
An automatic diluting device draws and dispenses a volume of sample along with a volume of diluent so as to maintain a precise ratio between the volume of sample and the volume of diluent. The device includes a diluent chamber having a plunger therein which is reciprocable between a first and second position for displacing a first volume therein when moved, and at least a first sample chamber having a plunger therein reciprocable between a first and second position for displacing a second volume therein when moved. The first and second volumes are arranged to have a fixed precise ratio with respect to one another for any equal distance moved by said first and second plungers in their chambers. A coupling device couples the plungers together for simultaneously reciprocally moving the plungers an equal distance in the chambers between first and second positions. Reciprocal movement of the plungers between the first and second positions causes a volume of sample and a volume of diluent to be drawn into the device, then both expelled at a common point for allowing mixing of the diluent and sample.
REFERENCES:
patent: 3127062 (1964-03-01), Feichtmeir et al.
patent: 3401839 (1968-09-01), Christie
patent: 3484207 (1969-12-01), Anthon
patent: 3525592 (1970-08-01), Buckley
patent: 3655094 (1972-04-01), Hobbs
patent: 3800984 (1974-04-01), Phelan
patent: 3837534 (1974-09-01), Natelson
Henderson William Taylor
Melnick Loran Vinson
Proni Oscar
Coulter Electronics Inc.
Knowles Allen N.
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