Integral multifinger contact and method of making
AssigneeIllinois Tool Works Inc.
InventorsStephen Verner Andersen, Edwin Grant Swick
Life of this patent
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Abstract
An integral multifinger contact with each finger being capable of flexing independently of one another while maximizing the number of independent finger contacts along a given contact line. The method involves the shearing of finger portions and elongating these portions during the shearing operation to provide a positive clearance between adjacent edges of the fingers. One embodiment of the invention being directed to a contact member particularly adapted for a rotary potentiometer while another embodiment has particular use in a linear potentiometer.
Claims3
A one piece electrical wiper brush contact including a base portion adapted for attachment to a carrier, a plurality of slender, resilient, arc-like contact fingers, each extremity thereof integrally joined to the base, said contact fingers merging together at both regions of juncture with the base, the side edges of adjacent arc-like fingers being separated over substantially their entire length by a crescent shaped aperture, dimpled localized contact regions being formed in the fingers and substantially radially aligned thereon.
Dependencies are inferred from the claim text.