Controller for controlling electrical heaters

Details Controller for controlling electrical heaters Controller for controlling electrical heaters

1985-10-17

1987-12-15

Goldberg, E. A.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

200 11R, 431254, H01H 316

Patent

active

047135026

ABSTRACT:
A controller has an axially releasable locking unit operable to prevent rotation of a regulating shaft from at least one locking position, without first axially moving the regulating shaft. This push-to-turn or pull-to-turn locking unit is arranged entirely outside of a housing of the controller, and is arranged with mounting particulars matched to those of the controller such that the same controller assembly can be used interchangeably either with a push-to-turn locking unit or without such a unit.

REFERENCES:
patent: 4123633 (1978-10-01), Stevens
patent: 4136324 (1979-01-01), Fischer
patent: 4206344 (1980-06-01), Fischer
patent: 4371764 (1983-02-01), Runion

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