Capillary thermometer containing visible silicone fluid

Details Capillary thermometer containing visible silicone fluid Capillary thermometer containing visible silicone fluid

1979-08-31

1980-10-28

Gill, James J.

Measuring and testing

Muscular force

733682, G01K 512

Patent

active

042299764

ABSTRACT:
An expanding-fluid thermometer of the capillary type is provided wherein the expanding fluid is a silicone fluid containing a coloring amount of 1,4-bis(alkylamino)-9,10-anthraquinone. The thermometer of this invention is useful over a wide temperature range and does not release toxic materials when broken. It thus has particular utility as a cooking thermometer.

REFERENCES:
patent: 2491843 (1949-12-01), Wilcock
patent: 2612048 (1952-09-01), Zemany
patent: 3548308 (1970-12-01), Seabury, Jr.

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