Antifreeze tester

Details Antifreeze tester Antifreeze tester

1977-11-04

1978-11-21

Ruehl, Charles A.

Measuring and testing

Specific gravity or density of liquid or solid

Multiple floats of graduated density

73441, G01N 910

Patent

active

041260449

ABSTRACT:
A specific gravity tester for antifreeze solutions including a transparent tube, a bulb on one end, and a sample-collecting hose on the other end; the transparent tube being of molded plastic and defining an interior guideway with broad, flat surfaces having projecting ribs to maintain the floats in spaced relation to the surfaces, the sidewalls of the tube having flat inner surfaces defining the guideway and rounded convex exterior surfaces to provide the sidewalls of the transparent tube with a magnifying lens characteristic.

REFERENCES:
patent: 398726 (1889-02-01), Hicks
patent: 1424730 (1922-08-01), Linebarger

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