Variable resistor screwshaft retainer

Claim 1

A variable resistor comprising a resistor body having a bore receiving a rotatable actuating screwshaft and a T-shaped recess in the body adjacent the bore, said recess having a trunk portion parallel to said bore and slots extending transversely from the trunk and said recess having walls; a screwshaft disposed in operative position in said bore and having an annular groove disposed adjacent the outer end of said bore and disposed generally transverse of the trunk portion of said recess; and a spring-wire screwshaft retainer disposed outside of said body and having an intermediate arcuate portion engaging said screwshaft in the annular groove therein and having first and second doubly-bent limbs each integral with said arcuate portion and extending away therefrom to said recess and each having a reach portion disposed in the trunk portion of said recess and each of said limbs having a foot portion disposed in a respective one of said slots of said recess and compressively engaging a respective one of said walls, whereby said retainer restrains said screwshaft against axial translation relative to said body while permitting rotation thereof and removal of the retainer and screwshaft from said body without alteration of said body.