H - Electricity – 01 – H
Patent
H - Electricity
01
H
26/120, 306/356,
H01H 50/02 (2006.01) H01H 49/00 (2006.01) H01H 50/14 (2006.01)
Patent
CA 1157502
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 material 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 projecting core section.
368971
Littelfuse Inc.
Macrae & Co.
LandOfFree
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