# US 6,293,755 B1 · Electric fan adjustable support

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- Number: US 6,293,755 B1
- Document ID: US6293755B1
- Status: Granted
- Kind: B1
- Application number: 09/491,085
- Filed: 2000-01-24
- Granted: 2001-09-25
- Earliest claimed: 2000-01-24
- Inventors: Chiac Fu
- Web page: https://patentgrep.com/patent/US6293755B1

## CPC

- F16M 11/2014: {around a vertical axis (F16M11/2035 takes precedence)}
- F04D 29/601: {specially adapted for elastic fluid pumps}
- F16M 11/10: around a horizontal axis {(F16M11/12 takes precedence)}
- F16M 2200/027: by friction
- F16M: FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)

## Abstract

An electric fan includes a block disposed on a base, a coupler having a bracket pivotally secured to the block at a pivot shaft, a motor secured on the other end of the coupler, a fan device attached to the spindle of the motor for being driven by the motor. means for securing the coupler to the block. A spring-biased projection is received in the block and engaged with the bracket for adjustably securing the coupler to the block. A net device is secured onto the middle portion of the motor at a peripheral flange.

## Claims

### Claim 1

An electric fan comprising:
a base,
a block disposed on said base,
a coupler including a first end pivotally secured to said block at a pivot shaft, and including a second end,
a motor secured on said second end of said coupler and including a spindle,
a fan device attached to said spindle of said motor for being driven by said motor,
means for securing said coupler to said block, and
means for offsetting a weight of said motor and said fan device.

### Claim 2 (depends on 1)

The electric fan according to claim 1, wherein said block includes a stud provided on top thereof, said first end of said coupler is pivotally secured to said stud of said block at said pivot shaft.

### Claim 3 (depends on 1)

The electric fan according to claim 1, wherein said first end of said coupler includes a bracket pivotally secured to said block at said pivot shaft.

### Claim 4 (depends on 3)

The electric fan according to claim 3, wherein said bracket includes an inverted U-shaped structure.

### Claim 5 (depends on 3)

The electric fan according to claim 3, wherein said bracket includes at least one cavity formed therein, said securing means includes a spring-biased projection received in said block and engaged in said at least one cavity of said bracket for securing said coupler to said block.

### Claim 6 (depends on 1)

The electric fan according to claim 1, wherein said block includes a peripheral groove formed therein, said offsetting means includes a spring received in said peripheral grove of said block and engaged between said block and said coupler for applying a resilient force against said coupler and said motor.

### Claim 7 (depends on 1)

The electric fan according to claim 1, wherein said motor includes a middle portion having a peripheral flange provided thereon, said electric fan further includes a net cover attached to said motor at said peripheral flange.

### Claim 8

An electric fan comprising:
a base,
a block disposed on said base,
a coupler including a first end pivotally secured to said block at a pivot shaft, and including a second end,
a motor secured on said second end of said coupler and including a spindle,
a fan device attached to said spindle of said motor for being driven by said motor,
means for securing said coupler to said block, and
bearing means for rotatably securing said motor to said coupler.

### Claim 9

An electric fan comprising:
a base,
a block disposed on said base,
a coupler including a first end pivotally secured to said block at a pivot shaft, and including a second end,
a motor secured on said second end of said coupler and including a spindle,
a fan device attached to said spindle of said motor for being driven by said motor, and
means for securing said coupler to said block,
wherein said block includes at least one orifice formed therein, said base includes at least one rod extended therefrom and engaged into said at least one orifice of said block for securing said block on said base.