C-shaped failure detector for steam traps

Details C-shaped failure detector for steam traps C-shaped failure detector for steam traps

1986-05-19

1987-09-01

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

Mechanical

340584, 340594, 340603, 374205, G01K 0570

Patent

active

046905707

ABSTRACT:
A C-shaped failure detector for steam traps includes a curved temperature sensitive bi-metal strip positionable against the external surface of a steam or condensate pipe, and two thermally insulative arms, one extending from each end of the strip. The contiguous surface area between the bi-metal strip and pipe varies with the pipe surface temperature, resulting in an amplified response, both in expansion and contraction. A threaded rod is pivotally mounted to one of the arms, and a sleeve threadedly engages the free end of the rod and extends freely through an opening in the other arm. The sleeve is rotated on the rod to selectively position the sleeve with respect to the second arm. The arms move angularly toward or away from each other responsive to temperature changes in the bi-metal strip. The resulting relative movement of the sleeve and second arm, visually displayed by markings on the sleeve, indicates the temperature deviation from a select bi-metal strip temperature corresponding to the select position of the sleeve.

REFERENCES:
patent: 527034 (1894-10-01), Weston
patent: 2641800 (1953-06-01), Myers
patent: 3214278 (1965-10-01), Mylo
patent: 3924468 (1975-12-01), Persson
patent: 4169381 (1979-10-01), Skopil
patent: 4369728 (1983-01-01), Nelson
patent: 4575258 (1986-03-01), Wall

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