Electricity: circuit makers and breakers – Electric switch details – Actuators
Patent
1980-06-18
1982-01-19
Little, Willis
Electricity: circuit makers and breakers
Electric switch details
Actuators
H01N 312, H01N 1314
Patent
active
043118941
ABSTRACT:
A pushbutton switch of the type wherein a pushbutton is depressed to operate a switch mechanism and which pushbutton is engaged and depressed by an adjustment screw extending through a moving device. The pushbutton includes a central contact portion which is engagable with the central end portion of the screw. A circumferential groove is disposed about the central contact portion of the pushbutton to provide clearance for the edge end portions of the screw so that the central end portion of the screw remains in contact with the central contact portion of the pushbutton. This relationship provides for precise adjustment of said screw in controlling the operation of the switch mechanism.
REFERENCES:
patent: 631892 (1899-08-01), Johnson
patent: 664667 (1900-12-01), Nathans
patent: 4094396 (1978-06-01), Greenwald
patent: 4127758 (1978-11-01), Lowthorp
Greenwald Electro-Mechanical Consultants, Inc.
Little Willis
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