Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Tips
Reexamination Certificate
2007-08-07
2007-08-07
Dunn, David R. (Department: 3636)
Tent, canopy, umbrella, or cane
Canes, sticks, crutches, and walking aids
Tips
C135S078000
Reexamination Certificate
active
10794209
ABSTRACT:
A lightweight metal or plastic framework which has a handle (11) at the top of a vertical shaft (12) with built in arms (13,14) below the handle and a bottom shaft (15) attached to the end of the vertical shaft (12). The said bottom shaft (15) is bent down at both ends on which are attached rubber bumper-pivots (16,17) that act as bumpers for the ends of shaft (15) and lift said wheels from said surface when said framework is leaned toward the user. Two bearing fitted wheels (18,19) are attached on the same side of said framework to said bottom shaft (15) by axles (20,21).
REFERENCES:
patent: 1494508 (1924-05-01), Smith
patent: 2244869 (1941-06-01), Everest et al.
patent: 2683461 (1954-07-01), Kinney
patent: 4962781 (1990-10-01), Kanbar
patent: 5588457 (1996-12-01), Tartaglia
patent: 5692533 (1997-12-01), Meltzer
patent: 6158453 (2000-12-01), Nasco
patent: 2612476 (1988-09-01), None
patent: 9-168414 (1997-06-01), None
patent: 11-196915 (1999-07-01), None
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