Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Crutches
Patent
1984-04-13
1986-01-28
Hafer, Robert A.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Crutches
A61H 302
Patent
active
045664749
ABSTRACT:
An improved adjustable convalescent crutch is provided comprising a top pair of spaced vertically extending support members, each support member carrying a plurality of apertures therethrough, telescopical with respect to a bottom portion of the crutch having a pair of vertically extending support members, spaced apart at the top of the bottom portion, each support member carrying a plurality of apertures therethrough, and converging together towards the bottom to be affixedly joined together in a "Y-shaped" configuration whereby only one of the support members continues down to form the foot of the crutch of the same diameter and material as the one support member, comprising the bottom of the "Y-shaped" configuration. A handgrip is provided having a longitudinal hole therethrough for co-operating with the apertures through the support members, whereby the height of the crutch and the position of the handle may be adjusted in a single adjustment of affixedly joining the handgrip between the pair of telescoped support members by a carriage bolt and wing nut.
REFERENCES:
patent: 79305 (1868-06-01), Bowen
patent: 596203 (1897-12-01), Drake
patent: 705741 (1902-07-01), Drew
patent: 909224 (1909-01-01), Rhodes
patent: 987497 (1911-03-01), Shadell et al.
patent: 1225364 (1917-05-01), Sanders
patent: 1262153 (1918-04-01), Wolf
patent: 1499458 (1924-07-01), Hughes
patent: 1501580 (1924-07-01), Beam
patent: 2585730 (1952-02-01), Bodnar
patent: 3858596 (1975-01-01), Thomas
patent: 4476885 (1984-10-01), Stein
Hafer Robert A.
Kramer Arnold W.
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