Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Walker type
Patent
1984-10-16
1986-10-28
Hafer, Robert A.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Walker type
135DIG9, 403235, 403399, A61H 300, F16L 4108
Patent
active
046192824
ABSTRACT:
An invalid device comprises four vertically disposed support legs, each support leg including a pair of adjustable inner and outer telescoping leg portions; at least one cross member extending between the vertically disposed support legs; and at least one clamp for connecting each end of the cross members to the vertically disposed support legs, each clamp including a first section having a bore extending entirely therethrough for receiving the outer telescoping leg portion of a support leg and a slit extending therealong for connecting the exterior of the first section with the bore, two flange members connected along the first section on opposite sides of the slit for receiving at least one cross member, and each flange member including a through aperture such that a bolt, rivet or the like extending through the cross member and the through apertures will bias the flange members toward each other so as to fixedly retain the at least one cross member between the flange members and so as to compress the first section about the outer telescoping leg portion of the support leg to fixedly retain the latter within the bore.
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Hafer Robert A.
Jackson David A.
Kramer Arnold W.
Tubular Fabricators Industry, Inc.
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