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US 7,063,507 B2Granted
Balance adjusted fan
OwnerHsin-mao Hsiehinventor
Life of this patent
Estimating the term…
Abstract
A balance adjusted fan mainly includes a hub, a shaft and a plurality of blades. The hub has a ring-wall and a top wall, and the shaft is connected to the top wall. The ring-wall has a plurality of socket holes that can be formed on the top edge, the bottom edge or the outside surface of the ring-wall. The blades are formed on the outside surface of the ring-wall. When the fan rotates in unbalance, at least a balance weight can be connected in one of the socket hole in an appropriate position that opposes to the heavier side of the hub to stabilize the rotation balance of the fan.
Claims15
A fan comprising:
- a hub having a ring-wall and a top wall, the ring-wall having a top edge, a bottom edge, an outside surface and an inside surface, a plurality of socket holes are formed on the outside surface of the ring-wall for selectively connecting a balance weight;
- a shaft connected to the top wall;
- and
- a plurality of blades formed on the outside surface of the ring-wall.
1 more element
A fan comprising:
- a hub having a ring-wall and a top wall, the ring-wall having a top edge, a bottom edge, an outside surface and an inside surface, a plurality of socket holes are formed on the ring-wall for selectively connecting a balance weight, wherein the socket holes pass through the outside surface and the inside surface of the ring-wall;
- a shaft connected to the top wall;
- and
- a plurality of blades formed on the outside surface of the ring-wall.
1 more element
A fan comprising:
- a hub having a ring-wall and a top wall, the ring-wall having a top edge, a bottom edge, an outside surface and an inside surface, a plurality of socket holes are formed on the ring-wall for selectively connecting a balance weight, wherein the socket holes pass through the top edge and the bottom edge of the ring-wall;
- a shaft connected to the top wall;
- and
- a plurality of blades formed on the outside surface of the ring-wall.
1 more element
Dependencies are inferred from the claim text.