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US 6,138,699 AGranted
Anti-slip base for a crutch
AssigneeMax Health Corporation
InventorDickson Su
Life of this patent
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Abstract
An anti-slip base for a crutch including a frustro-conical body having a recess at a bottom end thereof, a ball-shaped housing arranged on a top end of the frustro-conical body, a raised camber formed inside the recess with an anti-slip surface thereon, an outlet passage extending between the ball-shaped housing and the anti-slip surface on the raised camber, and a plurality of radial slots formed in a bottom face of the body.
Claims9
An anti-slipping base for a walking aid crutch with an upholding pole, said base comprising:
- a ball-shaped housing at a top of the base for engaging with a ball-shaped end piece with a sleeve which is at an end of the upholding pole;
- a round cover coupled with the base wherein the sleeve is mounted onto the upholding pole so as to engage the pole;
- a circumference, which is near the bottom surface on the base and expanded outward to create a dome-shape;
- screws arranged in holes on the round cover and secured with nuts that are mounted on the base;
- a raised camber on the bottom surface of the base;
- an outlet between the raised camber and the ball-shaped housing;
- a plurality of anti-slipping protuberant granules or rings mounted onto the raised camber;
- a deep slot in-between the circumference of the raised camber and the circumference of the flat bottom;
- and
- a plurality of radial slots positioned on the circumference of the flat bottom and separated from one another.
7 more elements
An anti-slip base for a crutch, comprising:
- a frustro-conical body having a recess at a bottom end thereof;
- a ball-shaped housing arranged on a top end of the frustro-conical body;
- a raised camber formed inside the recess with an anti-slip surface thereon;
- an outlet passage extending between the ball-shaped housing and the anti-slip surface on the raised camber;
- and
- a plurality of radial slots formed in a bottom face of the body.
3 more elements
Dependencies are inferred from the claim text.