Start system for domestic appliance

Details Start system for domestic appliance Start system for domestic appliance

1977-05-27

1979-01-02

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 55, 34133, 200 6164, F26B 1104

Patent

active

041320093

ABSTRACT:
An improved safety start system for use in a domestic appliance. The system includes a drive motor circuit for energizing the drive motor through the drive motor switch and door switch and includes a manually operable start switch connected for energizing both the start and run windings to initiate motor operation. A switch is provided for de-energizing the start winding and locking in the run winding when the motor comes up to speed. The improvement comprises an electrically operated door latch in parallel circuit with the drive motor run winding and is actuated to lock the door closed when the run winding is energized and unlock the door when the run winding is de-energized. An arrangement is also provided to automatically open the door when it is unlocked. By this system for the appliance to operate the door must be manually closed while the start switch is operated.

REFERENCES:
patent: 2180886 (1939-11-01), Thomas
patent: 2858619 (1958-11-01), Hughes
patent: 3857002 (1974-12-01), Lay et al.

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