Proximity switch operable without physical contact

Details Proximity switch operable without physical contact Proximity switch operable without physical contact

1981-08-18

1983-12-13

Grimley, A. T.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

174 52R, 200303, 361179, 403 4, H05K 500

Patent

active

044206518

ABSTRACT:
A proximity switch, operable without physical contact and having an elongated columnar housing which has, perpendicular to its principal axis, a cross-sectional shape with two orthogonal axes of symmetry. The housing is divided into at least two parts and the parts are joined at three abutting surfaces. One of the abutting surfaces extends in the plane of the principal axis and the others intersect the first surface, extending at angles of 90.degree. thereto. The greatest length of the first abutting surface, measured in the direction of the principal axis, is the same as the distance between the principal axis and the outer surface of the housing. With this arrangement, it is possible to arrange the sensor head carrying the sensor operating surface so that the operating surface lies on the longitudinal axis or at 90.degree. to the longitudinal axis in such a manner that the sensor surface does not extend beyond a generatrix of the outer surface.

REFERENCES:
patent: 4314310 (1982-02-01), Schmidt

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