Pipe thawing apparatus

Details Pipe thawing apparatus Pipe thawing apparatus

H - Electricity

05

B

309/4

H05B 1/02 (2006.01) E03B 7/14 (2006.01) G05B 11/16 (2006.01) H02H 3/08 (2006.01)

Patent

CA 1210798

ABSTRACT A pipe thawing apparatus incorporating various safety features is disclosed. The pipe thawing apparatus includes an a.c. generator from which can be obtained various voltage levels from 12 volts upwards for applying to a frozen pipe circuit. One important safety feature prevents the appli- cation of a relatively high voltage to the circuit unless at a lower voltage level, for example 20 volts, it has been established that the circuit is a good one. If the circuit is not good, when the operator switches to a higher voltage level a danger sign is illuminated. An automatic tripping feature can also be built in.

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