Apparatus for drawing liquids into, and expelling liquids from a

Details Apparatus for drawing liquids into, and expelling liquids from a Apparatus for drawing liquids into, and expelling liquids from a

1975-09-16

1976-06-15

Knowles, Allen N.

Fluent material handling, with receiver or receiver coacting mea

Filling or refilling of dispensers

By operation of means causing or controlling dispensing

734254P, 222373, B65B 318

Patent

active

039630617

ABSTRACT:
Apparatus for drawing liquids into, and expelling liquids from, a pipette including a housing comprising a hand-held pistol grip to which is connected a pipette-supporting portion. Valve means mounted on the pistol grip beneath two fingers of the user permit selective application of pressure or vacuum to one end of the pipette for drawing the liquid into, and expelling the liquid from, the pipette.

REFERENCES:
patent: 2994349 (1961-08-01), Demos
patent: 3656517 (1972-04-01), Taylor et al.

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