Electricity: circuit makers and breakers – Electric switch details – Indicators
Patent
1979-10-09
1981-03-03
Shepperd, John W.
Electricity: circuit makers and breakers
Electric switch details
Indicators
200328, 200340, H01H 918, H01H 922
Patent
active
042543177
ABSTRACT:
An illuminated push button actuator for electrical switches is disclosed consisting of a housing, a plunger, and a spring to bias the plunger. The housing and plunger have projections which allow the plunger to be inserted from the front and rotated to latch the plunger in the housing. The housing has an upstanding flange and the plunger has a removable cap which are shaped to allow the plunger to be rotated to the unlatched position only when the cap has been removed.
REFERENCES:
patent: 2668893 (1954-02-01), Vaughan
patent: 3188437 (1965-06-01), Lauren et al.
patent: 3437775 (1969-04-01), Piber
patent: 3596033 (1971-07-01), Wickham
patent: 3598948 (1971-08-01), Bowen
patent: 4112277 (1978-09-01), Kleeb
Firma Georg Schlegel
Shepperd John W.
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