Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Crutches
Patent
1979-07-25
1981-03-03
Bell, J. Karl
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Crutches
135 74, A61H 302
Patent
active
042534780
ABSTRACT:
A folding connector mechanism is housed within a single stile which is divided into major and minor parts. The major part constitutes the lower section of the crutch and the minor part is a portion of the upper section of the crutch. When the crutch is in its use position the weight of the user is transmitted by the folding connector mechanism directly from the lower end of the minor part of such stile to the upper end of the major part of such stile and is not carried by any cross pins or the like. The folding connector mechanism includes a lock button for locking the two sections of the crutch together when the crutch is in its use position. The lock button is positioned closely adjacent the handle of the crutch so that the user can grasp the handle with the thumb of such hand on the lock button while grasping the lower section of the crutch with his other hand. He then depresses the button while pulling the two sections of the crutch apart. This moves the folding connector mechanism out from a housed position, permitting its operation for folding the crutch.
REFERENCES:
patent: 39854 (1803-09-01), Wemple
patent: 595637 (1897-12-01), Kuhnke
patent: 1068564 (1913-07-01), Carrington et al.
patent: 1334208 (1920-03-01), Ames
patent: 2484406 (1949-10-01), Gibson
patent: 2707477 (1955-05-01), Chapin
patent: 3239255 (1966-03-01), Murcott
patent: 3492999 (1970-02-01), Boyd
patent: 3655297 (1972-04-01), Bolen et al.
patent: 3886962 (1975-06-01), Diamontis
Barnard Delbert J.
Bell J. Karl
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