Thermally responsive control for a vacuum cleaner motor

Details Thermally responsive control for a vacuum cleaner motor Thermally responsive control for a vacuum cleaner motor

1975-04-02

1976-10-05

Miller, J D

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With longitudinally expansible solid element

317 40R, 317 13B, 337 54, 337 90, 337367, 15339, H02H 708

Patent

active

039847357

ABSTRACT:
A control unit for an electric motor in a vacuum cleaner which stops the motor when the motor temperature exceeds a certain level. The control unit is utilized with a vacuum cleaner having a low voltage circuit for controlling the motor speed and is simple and inexpensive, as well as safe in operation.

REFERENCES:
patent: 2213890 (1940-09-01), Schaefer
patent: 2322235 (1943-06-01), Howard
patent: 2323266 (1943-06-01), Wilson
patent: 2519025 (1950-08-01), Crise
patent: 2570222 (1951-10-01), Ell
patent: 2729717 (1956-01-01), Visos
patent: 3200274 (1965-08-01), Munier
patent: 3207877 (1965-09-01), Chinn
patent: 3600635 (1971-08-01), Neilson

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