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US 8,166,990 B2Granted
Crutch assembly
AssigneeCore Consulting, LLC
InventorJesse Daily
Life of this patent
Estimating the term…
Abstract
An improved crutch assembly and walking aid is provided. The crutch assembly can be retrofitted to an existing walking aid and provides spring assisted motion. The assembly includes a ball-in-socket joint and a spring operably connecting the joint to a walking aid shaft.
Claims8
An assembly for attachment to a walking aid, the assembly comprising:
- a ball and socket joint having a substantially spherical ball section being in contact with a socket section, wherein the ball section has an upper end connected to an end of a coiled spring and the socket section is integrally formed with a mount, the ball and socket joint being positioned substantially within the mount, the upper end of the ball section extending outwardly from the mount;
- a gripping sole integrally formed with the mount opposite the ball section, the gripping sole having a gripping surface;
- and
- a spring housing connected to an end of the coiled spring opposite the end of the coiled spring connected to the ball section, the spring housing further configured for releasable attachment to a walking aid shaft,
- wherein the coiled spring is configured to receive an end portion of the walking aid shaft so as to extend around the end portion;
- and
- wherein the socket section of the ball and socket joint moves freely and rotatably with respect to the coiled spring and the ball section.
4 more elements
Dependencies are inferred from the claim text.