Push-button switch units

Details Push-button switch units Push-button switch units

1976-08-25

1978-09-05

Tudor, Harold J.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200159R, 200291, 200322, 200328, H01H 314

Patent

active

041122771

ABSTRACT:
A press-button unit has a push-rod mounted to be axially displaceable in a sleeve. An external surface portion of the push rod is provided with a groove system, with a recess and with a rib member. The rib member extends between a leading portion of the groove system and a leading portion of the recess. The press-button unit is provided with a latching element, which is accessible through an opening in the sleeve and which is capable of co-operating with the groove system to cause the press-button unit to have a latching action. The latching element is selectably positionable relative to the rib member, without even partial disassembly of the unit, to cause a portion of the latching element to enter either the groove system or the recess so that -- in dependence on the selected setting of the latching element -- the press-button unit is selectively operable either with or without latching action.

REFERENCES:
patent: 2956446 (1960-10-01), Ensign, Jr. et al.
patent: 3229548 (1966-01-01), De Rougemont et al.
patent: 3582592 (1971-06-01), Schadow
patent: 3697713 (1972-10-01), Ohkita
patent: 3914570 (1975-10-01), Lockard

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