Measured volume dispenser

Details Measured volume dispenser Measured volume dispenser

1985-05-30

1987-01-13

Rolla, Joseph J.

Dispensing

With discharge assistant

Plural

222305, 222361, 222404, 222367, 222434, G01F 1100, G01F 1110, G01F 1128

Patent

active

046358293

ABSTRACT:
A dispensing apparatus for dispensing discrete measured amounts of fluent material. A dispenser body includes a horizontal tubular chamber having an upper inlet port and a lower outlet port in communication with the tubular chamber. A reservoir communicates with the inlet port. A piston having a plurality of vertical and horizontal measuring holes is disposed within the horizontal tubular chamber and configured for rotational and reciprocal linear sliding engagement with the tubular chamber and each of the measuring holes can alternatively communicate with the inlet port and the outlet port when so aligned. The amount of fluent material dispensed is determined by the volume of the measuring hole. Another embodiment involves measuring holes open at one end only, with the piston rotatable to alternatively communicate the measuring hole with the inlet port and the outlet port.

REFERENCES:
patent: 502596 (1893-08-01), Suddoth
patent: 743686 (1903-11-01), Buehne
patent: 2761588 (1956-09-01), Shields
patent: 2765957 (1956-10-01), Andres
patent: 3669358 (1972-06-01), Waldman
patent: 4084729 (1978-04-01), Epple
patent: 4531658 (1985-07-01), Galopin

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