Two-step control knob operation

Details Two-step control knob operation Two-step control knob operation

1976-01-02

1977-07-26

Tolin, Gerald P.

Machine element or mechanism

Control lever and linkage systems

Elements

74548, 200324, 1161242A, 200336, H01H 310

Patent

active

040374904

ABSTRACT:
A push-to-turn knob design for a rotary switch to prevent accidental actuation of the switch by requiring a two-step operation sequence. This operating function is obtained without modifying the design of the rotary switch. Hence, a standard rotary switch can be easily converted to a push-to-turn operating sequence.

REFERENCES:
patent: 2501008 (1950-03-01), Schramm
patent: 2704466 (1955-03-01), Way
patent: 2981808 (1961-04-01), Klein

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