Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Distally supported on radial arm
Reexamination Certificate
2000-10-06
2002-05-07
Verdier, Christopher (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Distally supported on radial arm
C416S20400A, C416S205000, C416S22000A
Reexamination Certificate
active
06382918
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a blade bracket mounting system, and more particularly to a blade bracket mounting system for a ceiling fan.
2. Description of the Related Art
A conventional blade bracket mounting system for a ceiling fan in accordance with the prior art shown in
FIG. 6
comprises a motor rotor
60
defining a plurality of screw holes
62
, a plurality of blade brackets
61
each secured on the support base
60
and each having an extension
64
defining a plurality of through holes
640
, and a plurality of screws
63
each extending through the through hole
640
and screwed into the screw hole
62
, thereby securing the blade brackets
61
to the support base
60
.
However, the user has to respectively extend each of the screws
63
through the respective through hole
640
of the extension
64
of each of the blade brackets
61
and to respectively screw each of the screws
63
into the respective screw hole
62
of the support base
60
so that the user needs much manual work and has to spend a great deal of time. In addition, the user has to additionally provide a tool such as a screwdriver for operating the screws
63
, thereby causing inconvenience to the user.
SUMMARY OF THE INVENTION
The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional blade bracket mounting system for a ceiling fan.
In accordance with one aspect of the present invention, there is provided a blade bracket mounting system for a ceiling fan comprising:
a support base including an annular flange defining an axial hole, and a plurality of locking portions each located beside the annular flange, each of the locking portions including three locking slots each having a first end defining a wide portion and a second end defining a narrow portion;
a plurality of blade brackets each secured on the support base and each having one distal end provided with a connection secured on a respective locking portion of the support base, the connection defining a cavity and provided with three slide blocks each slidably mounted in a respective locking slot of the locking portion, three locking screws each screwed in a respective one of the three slide blocks to slide therewith and each slidably rested on a wall of a respective locking slot of the locking portion, each of the three locking screws having a dimension greater than that of the narrow portion of the locking slot so that the locking screw is detachably urged on a wall of the narrow portion of the locking slot; and
a fastening ring secured on the support base and including a ring portion mounted on the annular flange of the support base and defining a fitting hole for receiving the annular flange, the ring portion of the fastening ring having an outer periphery provided with a plurality of limit lugs and defining a plurality of openings between the limit lugs, two adjacent limit lugs each having a corner secured in the cavity of the connection of the blade bracket so that the blade bracket is rigidly secured on the support base.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
REFERENCES:
patent: 5927945 (1999-07-01), Chen
patent: 6010306 (2000-01-01), Bucher et al.
patent: 6042339 (2000-03-01), Blateri et al.
patent: 6048173 (2000-04-01), Chen
patent: 6095753 (2000-08-01), Hsu
patent: 6139276 (2000-10-01), Blateri et al.
patent: 6261064 (2001-07-01), Tang
Baxley Charles E.
Verdier Christopher
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