Patent ID: 7267027

Claim:
A handwheel for stable, reversible engagement with an engagement end of a shaft of a member to be operated, the shaft having an opposing end opposite the engagement end, comprising: a stem having a free end and an operation end; a cavity provided in the stem for cooperating with the engagement end of the shaft, the cavity comprising an open end proximate the free end of the stem and remote from the operation end of the stem, the engagement end of the shaft being received within the cavity via insertion through the open end such that the opposing end of the shaft does not extend beyond the operation end; an elastic ring; a first seat accommodating the elastic ring, the first seat being located proximate to the open end of the cavity; a retaining washer retaining the elastic ring; and a second seat accommodating the retaining washer, the second seat being located proximate to the open end of the cavity.