Shock absorbing crutch

Details Shock absorbing crutch Shock absorbing crutch

1996-08-08

1997-05-13

Mai, Lanna

Tent, canopy, umbrella, or cane

Canes, sticks, crutches, and walking aids

Crutches

135 69, 135 75, A61H 302

Patent

active

056283350

ABSTRACT:
A shock absorbing crutch includes two support shafts having an upper end, a lower end, and a plurality of apertures, an arm rest including two bores positioned on the upper ends of each support rod, two screws being positioned through the bores to secure the arm rest in place, a hand grip being positioned between the support shafts and including an axial aperture extending therethrough, a bolt being positioned through the apertures in the support bars and hand grip; two stabilizing shafts each having a lower end and an upper end being positioned within the lower end of the support shaft, an extension tab being affixed to the upper end of the stabilizing shaft and positioned within an aperture of the support shaft; a shock absorber with an upper section including a spring and a lower section, the lower section being positioned within the upper section, a mounting plate coupling the shock absorber to the stabilizing shafts; and a lower shaft being positioned within the upper shaft and secured in place by the extension tab, a user positioning the hand grip and shafts at an appropriate height and securing the shafts with the extension tabs.

REFERENCES:
patent: 39854 (1863-09-01), Wemple
patent: D318366 (1991-07-01), Goldstein et al.
patent: D322713 (1991-12-01), Daniels
patent: 1296728 (1919-03-01), Yates
patent: 2554653 (1951-05-01), Wisecarver
patent: 3016060 (1962-01-01), Beattie, Sr.
patent: 3492999 (1970-02-01), Boyd
patent: 3730198 (1973-05-01), Johnston et al.
patent: 4476885 (1984-10-01), Stein
patent: 4625743 (1986-12-01), Harker
patent: 5411045 (1995-05-01), Davis
patent: 5445175 (1995-08-01), Cho

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