Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Tips
Patent
1997-05-13
1998-11-03
Yip, Winnie
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Tips
135 84, 135 68, 135 70, A45B 904
Patent
active
058294635
ABSTRACT:
An improved tip for a crutch or cane includes a heel portion extending rearwardly from the tip at an upward angle such that the bottom surface of the heel portion frictionally engages the floor when the cane is tilted rearwardly from a vertical. The heel is made of rubber or other high friction material and is provided with treads on its bottom surface to enhance frictional engagement of the floor.
REFERENCES:
patent: 3738674 (1973-06-01), Pauls
patent: 4493334 (1985-01-01), Semanchik et al.
patent: 4899771 (1990-02-01), Wilkinson
patent: 5224506 (1993-07-01), Allen et al.
patent: 5236222 (1993-08-01), Fletcher
patent: 5331989 (1994-07-01), Stephens
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