Electromagnet coil assembly and mounting apparatus and method for use in installing same
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United States of America Patent
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Dec 27, 1994
Grant Date -
N/A
app pub date -
Jun 28, 1993
filing date -
Jun 28, 1993
priority date (Note) -
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Abstract
An improved electromagnetic coil assembly for use with an electromagnetic door locking mechanism is disclosed which electromagnetic coil assembly incorporates an improved housing construction allowing the electromagnetic coil assembly to be easily and conveniently installed in its operating position on the frame of the door utilizing the electromagnetic locking mechanism. The electromagnet core itself is made of a plurality of thin, flat electromagnet core laminations which are placed in a stacked array in a U-shaped channel member, with thin welds between the tops of the legs of the 'U' and the side edges of the stacked electromagnet core laminations being used to maintain the configuration of the array. In the preferred embodiment, an electromagnet housing member containing the electromagnet core is mounted to a mounting plate affixed to a door frame using mounting bolts located within the electromagnet housing member to facilitate both simple installation and quick and easy replacement of the electromagnet coil assembly.
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