Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1997-11-26
1999-03-23
Luebke, Renee S.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335251, H01F 300
Patent
active
058866078
ABSTRACT:
The solenoid assembly comprises a frame having first and second sides with respective first and second frame apertures extending through the first and second sides. A coil assembly having a first end, a second end and a cavity extending between the first end and the second end. The coil assembly is received in the frame such that the cavity is substantially aligned with the first frame aperture. A plunger is slideably received through the first frame aperture in the frame and into the cavity of the coil assembly. A stop is engaged with an inner surface of the first frame aperture to secure the coil assembly in the frame such that the stop mates with a mating pole face of the plunger. A biasing member, such as a spring, can be positioned between the plunger and the stop, for biasing the plunger toward a de-energized position. The stop preferably has a tapered outer region, for being inserted through the first frame aperture and into the cavity, a substantially flat outer region, for engaging with the inner surface of the first frame aperture, and a barb formed between the tapered outer region and the substantially flat outer region for engaging against the first side portion of the frame.
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Luebke Renee S.
Nguyen Tuyen T.
WPI Magnetic, Inc.
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