Device for drawing, holding and dispensing liquid

Details Device for drawing, holding and dispensing liquid Device for drawing, holding and dispensing liquid

1982-08-20

1985-02-12

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

Filling or refilling of dispensers

By operation of means causing or controlling dispensing

141242, 141258, 7386413, 7386418, 222108, 2223865, 222571, 422100, B65B 304

Patent

active

044985100

ABSTRACT:
A device for drawing, holding and dispensing a plurality of distinct, relatively low volume, liquid masses. A plunger plate with an array of plungers is received in a draw tube plate with an array of draw tubes. A piston tip is sealingly disposed in the draw tubes and the plungers are connected thereto. The draw tube plate can be received by a reservoir plate such that the draw tubes extend into an array of wells in the reservoir plate. By finger pressure the plunger plate can be reciprocated with respect to the draw tube plate to move the pistons in the draw tubes for drawing, holding and dispensing a plurality of distinct liquid masses. Preferably the pistons have an inverted concave, conical tip shape and mate with an inner, lower surface of the draw tubes.

REFERENCES:
patent: 2241840 (1941-05-01), Achtziger
patent: 3738539 (1973-06-01), Beich
patent: 3855868 (1974-12-01), Sudvaniemi
patent: 4056360 (1977-11-01), Risch
patent: 4298575 (1981-11-01), Berglund

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