Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Crutches
Patent
1988-10-18
1989-09-12
Scherbel, David A.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Crutches
135 75, 135 68, A61H 302
Patent
active
048650650
ABSTRACT:
An improved height-adjustable crutch is provided in which the central carrier member, in which is telescopingly received an extensible leg member, is provided with laterally extending ribbed members, defining exterior concave surface, which matingly received therein the cylindrical portions of the diametrically-opposed tubes defining the lower extremity of the crutch proper. Each tube is coupled to a respective one of the ribbed members via a rivet, each rivet being independent of the other, so as to not to obstruct the interior, hollow passageway formed by the central carrier member, to allow for the sliding movement of the leg member in the central carrier member. Each ribbed member defines an arcuate interior opening having a diametric expanse less than that of a detent sphere used for retaining the extensible leg member within the hollow interior at a desired height level thereof, so as to allow for the rotation of the extensible leg member in the hollow interior during readjustment of the extensible leg member to a desired height. Each ribbed member substantially extends along the entire length of the lateral surface of the central carrier member.
REFERENCES:
patent: Re32815 (1989-01-01), Smith
patent: 4509741 (1985-04-01), Smith
patent: 4566474 (1986-01-01), Burke
patent: 4721125 (1988-01-01), Wang-Lee
patent: 4733682 (1988-03-01), Ellena
patent: 4763680 (1988-08-01), Acosta, Sr.
Benn Marvin N.
Cypress Medical Products Ltd.
Gerstein Milton S.
Mai Lan
Scherbel David A.
LandOfFree
Height-adjustable crutch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Height-adjustable crutch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Height-adjustable crutch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-909277