Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1981-06-26
1983-08-02
Rolla, Joseph J.
Measuring and testing
Sampler, sample handling, etc.
Capture device
222 43, 222309, B01L 302
Patent
active
043959210
ABSTRACT:
An adjustable volume dispenser comprises a barrel assembly having an internally threaded tubular portion, an adjustable stop formed with external threads engaged with the internal threaded tubular portion of said assembly, and a sleeve coaxially mounted within the tubular portion and rotatable therein, said sleeve being connected to the adjustable stop for imparting rotation thereto but allowing said stop to move axially thereon. A finger engageable wheel connects to the sleeve for rotating the adjustable stop relative to the barrel assembly, a plurality of numbered wheels being coaxially connected to the finger engageable wheel for indicating the position of the stop and the volume of liquid to be dispensed. A plunger assembly is provided including a rod reciprocally removeable within the barrel assembly, said rod extending coaxially through the adjustable stop, the sleeve and said wheels. The rod carries a fixed stop which cooperates with the adjustable stop, limiting the reciprocating throw of the plunger assembly.
REFERENCES:
patent: 2771217 (1956-11-01), Brown et al.
patent: 3827305 (1974-08-01), Gilson et al.
patent: 4096751 (1978-06-01), Withers et al.
Rolla Joseph J.
Scientific Manufacturing Industries, Inc.
Stormer R.
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