Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1997-07-02
1998-10-13
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
335250, 335251, 335 78, H01H 6702
Patent
active
058218408
ABSTRACT:
A simplified solenoid assembly has a simplified construction that maintains the mechanical integrity and operating efficiency of the solenoid. The solenoid assembly includes a frame having first and second frame leg portions extending from a frame middle portion. The side region of the first frame leg portion includes an aperture, and the side region of the second frame leg portion defines a frame pole face generally opposite the aperture. A bobbin having first and second bobbin end portions and a generally cylindrical bobbin intermediate portion is "snap-fit" between the frame leg portions. A plunger receiving region formed in the bobbin is aligned with the aperture through the frame, and the second bobbin end portion extends across the plunger receiving region to form a fixed gap between the bobbin and the frame. A plunger is slidably received through the aperture in the frame and into the plunger receiving region within the bobbin.
REFERENCES:
patent: 2975252 (1961-03-01), Juptner
patent: 4553116 (1985-11-01), Bagalini
patent: 4864262 (1989-09-01), Deb
patent: 5075660 (1991-12-01), Ootsuka
Bourque Esq. Daniel J.
Carroll Esq. Kevin J.
Donovan Lincoln
WPI Magnetec, Inc.
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