초록 ▼

A device facilitating operation of a doorknob, comprising a tubular body member having a continuous wall with an outer gripping surface and an inner surface defining bore adapted for receiving the doorknob. A plurality of resiliently deformable projections extend inwardly from the inner surface of t

A device facilitating operation of a doorknob, comprising a tubular body member having a continuous wall with an outer gripping surface and an inner surface defining bore adapted for receiving the doorknob. A plurality of resiliently deformable projections extend inwardly from the inner surface of the wall. A distance between opposing projections before installation of the device on the doorknob is smaller than a cross dimension of the knob. Each projection has a pair of spaced end portions formed integrally with the inner surface of the wall. The outer gripping surface of the continuous wall includes a generally curved section between each pair of spaced end portions before the device is installed on the knob. Deformation of the projections upon installation of the device on the knob causes the spaced end portions of each projection to spread apart and embrace an outer periphery of the doorknob.

대표청구항 ▼

[ What is claimed is:] [1.] A device for facilitating turning of a knob, comprising:a tubular body member having a continuous wall defining an inner bore adapted for receiving a knob, the continuous wall including an outer gripping surface and an inner surface; the tubular body member extending betw

[ What is claimed is:] [1.] A device for facilitating turning of a knob, comprising:a tubular body member having a continuous wall defining an inner bore adapted for receiving a knob, the continuous wall including an outer gripping surface and an inner surface; the tubular body member extending between a free end and a front end wall;a plurality of projections positioned at spaced intervals on the inner surface and extending into the bore, each projection is formed with a pair of spaced end portions and having an innermost portion that together define a knob reception opening, the projections being resiliently deformable upon engagement with an outer surface of the knob to thereby frictionally hold the tubular member on the knob; andeach said projection extending between an open portion provided at the free end of the tubular member and a front portion, so that the front portion of each said projection terminates at an individual wall which extends outwardly from the front end wall of the tubular member.