Device responsive to unusual temperature change in refrigerant c

Details Device responsive to unusual temperature change in refrigerant c Device responsive to unusual temperature change in refrigerant c

1979-12-14

1982-04-20

Wayner, William E.

Refrigeration

With indicator or tester

Operatively correlated with automatic control

623234, 318473, 361104, F25B 2700, G05B 500, H02H 504

Patent

active

043252222

ABSTRACT:
A device responsive to an unusual temperature change in a refrigerant compressor using an electromagnetic clutch including a magnet coil as an actuating element of the clutch, comprising an overcurrent-responsive element such as a fuse connected in parallel with the magnet coil, a temperature-responsive switch operative to be open when the temperature in the compressor rises beyond a predetermined value, and a switching element such as a transistor which is non-conductive when the temperature-responsive switch is closed and which is made conductive to cause the fuse to melt when the temperature-responsive switch is made to open.

REFERENCES:
patent: 3660720 (1972-05-01), Samm et al.
patent: 3702064 (1972-11-01), Ciolli
patent: 3765191 (1973-10-01), Canter
patent: 4075678 (1978-02-01), Levinn

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