Free piston volumetric measuring device and method for measuring

Details Free piston volumetric measuring device and method for measuring Free piston volumetric measuring device and method for measuring

1983-09-12

1985-01-01

Rolla, Joseph J.

Dispensing

Floating piston with plural or alternate discharge

222386, 73239, G01F 1104

Patent

active

044912480

ABSTRACT:
A liquid measuring device for dispensing measured volumes of liquid from a source of liquid under pressure is disclosed and includes a cylinder, a free piston for reciprocal traveling in the cylinder. In accordance with the present invention, the piston has a specific gravity that is adjusted to approximately match the specific gravity of the liquid thus improving the precision and accuracy of the dispensing device.

REFERENCES:
patent: 1144583 (1915-06-01), Brown
patent: 1904829 (1933-04-01), Hurlbrink
patent: 2886214 (1959-05-01), Sturman
patent: 3344667 (1967-10-01), Maltby
patent: 3358888 (1967-12-01), Dawson
patent: 4240291 (1980-12-01), Andersson et al.

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