Temperature measuring device

Details Temperature measuring device Temperature measuring device

1989-03-24

1990-03-13

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

Mechanical

65 62, 374193, G01K 508

Patent

active

049078968

ABSTRACT:
There is disclosed a maximum reading, temperature measuring device, such as a clinical thermometer, composed of a bulb containing an expandable liquid, such as mercury, an elongated tube with a central bore into which the liquid expands when heated, and a flow control member positioned intermediate the tube and bulb and sealed to each. The flow control member is a short length of tubing having a central bore that is sufficiently small in diameter to form a constriction that inhibits reverse flow of the liquid.

REFERENCES:
patent: 2614431 (1952-10-01), Brady
patent: 2712237 (1955-07-01), Margolis
patent: 3218861 (1965-11-01), Moore et al.
patent: 3739642 (1973-06-01), Klinger

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