Safety circuit for commercial washing machines

Details Safety circuit for commercial washing machines Safety circuit for commercial washing machines

1997-02-25

2000-01-25

Coe, Philip R.

Textiles: fluid treating apparatus

Machines

Single tub and automatic sequential operation mechanism

68 1227, 68 17R, 68207, 137566, 2221445, 222651, D06F 3902

Patent

active

060166711

ABSTRACT:
A safety circuit for washing machines prevents an accidental simultaneous feed of bleach and sour due to a malfunction of the machine's controller, by interposing a normally open contact and a normally closed contact of a relay, respectively, in the sour pump power line and the bleach pump power line. The coil of the relay is powered by the controller's power output for the pump in whose power circuit the normally open contact is located.

REFERENCES:
patent: 4213313 (1980-07-01), Kiefer et al.
patent: 5208930 (1993-05-01), Chabard

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