Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With housing or support means
Patent
1989-12-14
1992-07-21
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
With housing or support means
335 78, 200293, H01H 902
Patent
active
051326531
ABSTRACT:
The present invention is directed to an electromagnetic switch that includes a casing in which are received a yoke, a bobbin, a coil, a plunger, and contacts. The plunger is formed of an electrically conductive material and the casing is formed of an insulating material. The casing comprises a square box-shaped body and a covering member fitted in an open end of the body. The yoke includes a sheet member having a generally U-shaped section and having opposite end portions between which a portion of the covering member is interposed. The opposite end portions are formed in part into at least one pair of inwardly extending lugs force-fitted in the above portion of the covering member. The covering member has a recess formed in a side surface thereof opposed to the contacts. The covering member has a partition wall formed thereon and separating the contacts from leader ends of the coil.
REFERENCES:
patent: 4725801 (1988-02-01), Snyder
patent: 4887056 (1989-12-01), Kajino et al.
Inohara Yoshimi
Kurita Tsutom
Nakatake Yoshiteru
Uehara Mitsuru
Donovan Lincoln
Picard Leo P.
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