Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent
1986-12-22
1988-07-26
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Conductor identification or location
Inaccessible
200DIG1, 361179, G01R 2726, H01G 700
Patent
active
047603267
ABSTRACT:
A protective housing and mounting apparatus for simultaneously protectively enclosing, and mounting to a given surface, a generally cylindrical capacitive-type proximity sensor having a substantially solid and unbroken external surface and an electrode member at one axial end thereof. The protective housing and mounting apparatus comprises a one-piece integrally formed member of a durable, moldable plastics material, including an end surface configured for complementary mounting upon a given surface and a protective body portion extending from this end surface for surroundingly housing an end part of the sensor proximate the axial end thereof at which the electrode member is located. The body portion has a cylindrical open-ended bore therein for receiving an end part of the sensor and this bore extends to a point closely spaced behind the end surface. A quantity of conductive material covers substantially all external surfaces of the body portion and a predetermined portion of the end surface away from the periphery thereof, such that there is no continuity of electrically conductive material between the end surface and the body portion surfaces. An arrangement is provided for establishing electrically conductive contact between the end surface conductive material-covered portion and the electrode of the sensor, such that the end surface conductive portion defines an electrode of selected size and configuration for the sensor.
REFERENCES:
patent: 3047801 (1962-07-01), Dietert
patent: 3586972 (1971-06-01), Tulleners
patent: 3628136 (1971-12-01), Jonas
patent: 4047434 (1977-09-01), Marsh et al.
patent: 4168466 (1979-09-01), Boldt
patent: 4486811 (1984-12-01), Kamiya et al.
Gordon Products, Inc., Bulletin SW-2, Capacitive Proximity Switches, Models PC 131/132 All Material Sensing, 1/1983.
CTB Inc.
Eisenzopf Reinhard J.
Harvey Jack B.
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