Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Walker type
Patent
1989-03-23
1990-07-17
Scherbel, David A.
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Walker type
135 72, 135 84, 272 703, A61H 300
Patent
active
049414968
ABSTRACT:
A walker includes a frame which has pair of spaced apart upright members. A cross piece extends between the upright members adjacent the lower end thereof. A handle portion is attached to the upright members at the upper end thereof. The handle portion includes a pair of opposed, vertically disposed segments which are receivable on the upright members. A grip pair is located on top of each vertically disposed segment and includes two grips, located one above the other, which are in vertical alignment with each other. A transverse element extends between the grip pairs. A foot is located on the lower end of each upright member and is perpendicular thereto. Each foot includes a pad which is fixed to the upright member and a wheel which is pivotably hinged to the pad and is flexibly biased to extend linearly from and end of the pad.
REFERENCES:
patent: 2238445 (1941-04-01), Kilstrom
patent: 2757388 (1956-08-01), Chisholm
patent: 2792052 (1957-05-01), Johannesen
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patent: 3455313 (1969-07-01), King
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patent: 4046374 (1977-09-01), Breyley
patent: 4251105 (1981-02-01), Baker
patent: 4411283 (1983-10-01), Lucarelli
patent: 4474202 (1984-10-01), Blechner
patent: 4510956 (1985-04-01), King
patent: 4700730 (1987-10-01), Samuelson et al.
patent: 4742838 (1988-05-01), Muiza et al.
Mai Lan
Scherbel David A.
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