Tent – canopy – umbrella – or cane – Umbrella – Runners and notches
Patent
1995-02-24
1996-05-14
Wood, Wynn E.
Tent, canopy, umbrella, or cane
Umbrella
Runners and notches
135 38, 135 39, 135 40, 135 203, A45B 2506
Patent
active
055158781
ABSTRACT:
An umbrella includes: a central shaft having an upper engaging sleeve member generally cylindrically shaped formed on an upper portion of the shaft and a lower engaging sleeve member generally cylindrically shaped formed on a lower portion of the shaft, and a C-shaped retaining ring expansibly held in a runner which is pivotally secured with a stretcher rib pivotally connected to a top rib pivotally secured to an upper notch formed on a top portion of the umbrella, whereby upon an upward movement of the runner to extend the stretcher rib and top rib for opening the umbrella and upon an expansion of the C-shaped ring to be retained on the upper engaging sleeve member, the umbrella will be opened steadily; and upon a folding of the ribs by lowering the runner and upon the expansion of the C-shaped ring to be retained on the lower engaging sleeve member, the umbrella will be closed steadily.
REFERENCES:
patent: 77975 (1868-05-01), Griswold
patent: 144021 (1873-10-01), Dugan et al.
patent: 912163 (1909-02-01), Perpich
patent: 1049360 (1913-01-01), Hoffman
patent: 1068376 (1913-07-01), Weber
patent: 1107835 (1914-08-01), Peterson
patent: 1109736 (1914-09-01), Cartwright
patent: 2528002 (1950-10-01), Katzberg
patent: 3156249 (1964-11-01), Biderman
patent: 3856032 (1974-12-01), Schafer
patent: 5088512 (1992-02-01), Chou et al.
patent: 5427130 (1995-06-01), Yang
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