H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 9/02 (2006.01) H01H 71/02 (2006.01)
Patent
CA 2343492
The secondary cover of a molded case power switch housing is removably secured in place to enclose cavities in the insulative resin of a primary cover by an attachment assembly which includes metal attachment members or inserts seated in recesses in the primary cover. These inserts have tapped apertures aligned with mounting holes in the secondary cover through which screw fasteners are inserted and threaded into the tapped apertures. Such metal to metal connections can be repeatedly coupled and decoupled without significant wear as the secondary cover is removed and reinstalled to gain access to auxiliary devices mounted in the cavities in the primary cover. The inserts have second mounting apertures through which self tapping screws extend into the primary cover or through mounting holes in the primary cover and into the resin of the base to mount the inserts on the primary cover and to secure the primary cover to the base.
Humbert Joseph Bell
Zindler Mark Owen
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Corporation Eaton
LandOfFree
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