Slip-resistant crutch tip
OwnerThomas Fettermaninventor
Life of this patent
Estimating the term…
Abstract
A crutch tip for installation on the lower end of a crutch shaft for engagement with an underlying supportig surface. The crutch tip includes a first material having a first coefficient of friction with respect to the supporting surface and a second material having a second coefficient of friction with respect to the supporting surface. The crutch tip generally includes a radial outer skirt, a ring portion radially inwardly of the skirt, and a center portion. The ring portion may be formed from the first material and the outer skirt may be formed from the second material.
Claims6
A crutch tip for installation on the lower end of a crutch shaft, the crutch tip comprising a tread piece for engagement with an underlying supporting surface, the tread piece comprising a radial outer skirt, a ring portion radially inwardly of the skirt, and a center portion, the ring portion comprising a first material having a first coefficient of friction with respect to the surface and the outer skirt comprising a second material having a second coefficient of friction with respect to the surface, the first coefficient of friction being greater than the second coefficient of friction when the surface is substantially wet and the first coefficient of friction being less than the second coefficient of friction when the surface is substantially dry.
Dependencies are inferred from the claim text.