Electricity: circuit makers and breakers – Electric switch details – Indicators
Patent
1989-11-13
1990-10-09
Cusick, Ernest G.
Electricity: circuit makers and breakers
Electric switch details
Indicators
200336, 200309, 200296, 200574, 200568, H01H 332, H01H 1960, H01H 916
Patent
active
049622900
ABSTRACT:
A mechanism for providing electrical or pneumatic signals indicative of the rotation position of a rotatable shaft includes a switch housing mounted on a base with a cam shaft passing upward through the base and supporting one or more cam elements for cooperating with electrical switches contained within the housing. The base is especially designed to support a flared drum on the outer surface of which are graphic characters viewable through a window on a fixed indicator cover and visible from above and the sides for visibly displaying the orientation of the rotary shaft. The mounting mechanism including a system of brackets and spacers permits the device to be used with a variety of devices incorporating a rotatable shaft.
REFERENCES:
patent: 3446924 (1969-05-01), Giambertoni
patent: 3754106 (1973-08-01), MacDonald
patent: 3781499 (1973-12-01), Reichert et al.
patent: 3903383 (1975-09-01), Marker
patent: 4107500 (1978-08-01), Distler et al.
patent: 4214133 (1980-07-01), Wolford et al.
patent: 4288671 (1981-09-01), Morrison
Nelson Gerald J.
Rose John
Stommes Wally
Cusick Ernest G.
StoneL Corporation
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