Radiant energy – Photocells; circuits and apparatus – Housings
Patent
1992-09-03
1993-10-26
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Housings
250561, 250575, H01J 502
Patent
active
052568733
ABSTRACT:
Light emitting diodes of a through beam photoelectric detector are positioned in a door hinged to a sensor body in which the photodetector diodes are located. The light emitting diodes and photodetector diodes are aligned to establish photoelectric sensors when the door is closed upon the body. A base provides a receptacle for attachment of the sensor, the base having a plug-in electrical terminal half for receiving the connector prongs of a second half of the connector carried by the body. The connector is symmetrical so that the sensor unit may be installed to the base in either of two operating positions spaced 180 degrees apart to enable the hinge to be located at either the right-hand or left-hand side of the sensor unit and of the stations to be sensed. LED indicators for indicating the condition of the material being sensed at any of the stations are connected through printed circuitry to the connector half located within the base so that the indicators correspond to a particular sensing station regardless of the position of the sensor unit on the base.
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Camps Frank W.
Nadolski Gregory L.
Saffari Akbar
Turner Charles J.
Allen S. B.
Eaton Corporation
Nelms David C.
Vande Zande L. G.
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