Electric fan adjustable support

Fluid reaction surfaces (i.e. – impellers) – Support mounting – carrier or fairing structure

Reexamination Certificate

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Details

C416S246000

Reexamination Certificate

active

06293755

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a fan, and more particularly to an electric fan having an adjustable support.
2. Description of the Prior Art
Typical electric fans comprise a fan motor directly and rotatably secured on top of a support, such that the fan motor may be rotated about a vertical axis of the support only. In addition, the fan motor and the electric fan may not be easily disassembled for storing or transportation purposes.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional electric fans.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an electric fan having a configuration to be easily assembled and disassembled.
In accordance with one aspect of the invention, there is provided an electric fan comprising a block disposed on a base, a coupler including a first end pivotally secured to the block at a pivot shaft, a motor secured on a second end of the coupler, a fan device attached to a spindle of the motor, and means for securing the coupler to the block.
The block includes a stud provided on top thereof, the first end of the coupler is pivotally secured to the stud of the block at the pivot shaft. The first end of the coupler includes a bracket pivotally secured to the block at the pivot shaft. The bracket includes an inverted U-shaped structure. The bracket includes at least one cavity formed therein, the securing means includes a spring-biased projection received in the block and engaged in the cavity of the bracket for securing the coupler to the block.
The block includes a peripheral groove formed therein, and a spring is received in the peripheral grove of the block and engaged between the block and the coupler for applying a resilient force against the coupler and the motor.
The motor includes a middle peripheral flange for supporting a net cover. A bearing device is further provided for rotatably securing the motor to the coupler. The block includes at least one orifice formed therein, the base includes at least one rod extended therefrom and engaged into the orifice of the block for securing the block on the base.
Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.


REFERENCES:
patent: Re. 34551 (1994-02-01), Coup et al.
patent: 1597871 (1926-08-01), Reynders
patent: 2652974 (1953-09-01), Fettel
patent: 3713346 (1973-01-01), Chamberlain et al.
patent: 4732539 (1988-03-01), Shin-Chin
patent: 5558501 (1996-09-01), Wang et al.
patent: 6015262 (2000-01-01), Huang

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