Tent – canopy – umbrella – or cane – Umbrella – Runners and notches
Reexamination Certificate
2000-02-17
2001-10-09
Stephan, Beth A. (Department: 3635)
Tent, canopy, umbrella, or cane
Umbrella
Runners and notches
C135S031000, C135S037000, C135S038000, C135S041000
Reexamination Certificate
active
06298867
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a hub and rib assembly for umbrella, by which the cost is reduced and the safety is enhanced.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, a conventional umbrella has a plurality of lower ribs
10
a
connected to a lower hub
11
a
movably arranged on a shank
12
a
. The lower hub
11
a
is moved upward and downward to expand or shrink the lower ribs
10
a
. Moreover, a plurality of upper ribs
14
a
are connected to an upper hub
13
a
movably arranged on top of the shank
12
a
. A handle
15
a
is provided on the bottom of the shank
12
a.
As shown in
FIG. 2
, the conventional ribs
10
a
(
14
a
) are assembled on the hub
11
a
(
13
a
) by tying metal wire
16
a
through each rib. However, the tying operation is cumbersome and the sharp metal wire
16
a
is dangerous to user.
It is the object of the present invention to provide a rib and hub assembly for an umbrella, wherein the ribs and hub of the assembly are integrally formed by ductile materials. The assembling thereof is convenient and does not require other tools, whereby cost is reduced and safety is enhanced.
To achieve above object, the present invention provides a hub and rib assembly for umbrella, comprising a hub and a plurality of ribs, all made of ductile material. Each rib has an end integrally formed and connected with the hub.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing, in which:
REFERENCES:
patent: 4407317 (1983-10-01), Crandall
patent: 5738129 (1998-04-01), Vogt
patent: 5794637 (1998-08-01), Figueroa
patent: 5911233 (1999-06-01), Wu
patent: 5941261 (1999-08-01), Kouvaras
patent: 6076540 (2000-06-01), You
Rosenberg , Klein & Lee
Stephan Beth A.
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