H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/105, 26/120
H01H 50/24 (2006.01)
Patent
CA 1161478
ELECTRICAL DEVICE AND METHOD OF MIXING THE SAME Abstract of Disclosure An electrical device, which preferably forms a plug-in relay unit, includes a terminal board assembly most advantageously formed by a pair of insulating plates made of thermoplastic mater- ial and between which are clamped the intermediate laterally extending portions of terminal blade members having outer portions projecting transversely beyond the outermost plate constituting a base plate and transversely innermost portions projecting beyond the innermost plate constituting a clamp plate. One or more of the terminal blade members carry stationary contacts on the inner ends thereof. The insulating plates are held secured together and a bobbin assembly having thermoplastic pins are passed through apertures in the base assembly and ultrasonically vibrated to weld the same to the walls of the apertures. A core and heel piece sub-assembly is initially mounted for progressive movement upon the bobbin assembly and anchored in place in a given position thereon where the core section thereof projects beyond a core- receiving aperture of the bobbin assembly a given predetermined distance. The core and heel piece sub-assembly includes a core section adjustably mounted in a predetermined position upon a heel piece section before it is mounted on the bobbin assembly. An armature with a movable contact is pivotally mounted on the end of the heel piece section for movement toward and away from the pro- jecting core section.
419375
Littelfuse Inc.
Macrae & Co.
LandOfFree
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