Lever attachment for a rotary door knob
OwnerAlfred C. Penningtoninventor
Life of this patent
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Abstract
A lever attachment for a rotary door knob comprises an arcuate collar adapted to embrace the knob, the collar terminating at its opposite ends in arms and being formed on an arc such that the arms have a tendency to diverge. The collar is formed of material sufficiently resilient to enable the arms to be moved into engagement with one another, thereby causing radial contraction of the collar and enabling the latter to grip the knob. The arms are releasably maintained in engagement by any one of a number of different kinds of latches.
Claims15
A lever attachment for a rotary knob comprising an arcuate collar having at its opposite ends arms of substantially equal length extending away from said collar and terminating in free ends, said collar being formed on an arc such that said collar may embrace said knob with said arms diverging from said collar, said collar being formed of material sufficiently resilient to enable said collar to be radially contracted and said arms to overlie and engage one another adjacent their free ends, and said collar having a groove in its inner surface flanked by a pair of parallel ribs;
- and latch means remote from said collar and releasably maintaining the free ends of said arms in engagement with each other, thereby maintaining said collar in radially contracted condition.
Dependencies are inferred from the claim text.