Ceiling fan

• US 20060172688A1
• Filed: 01/13/2005
• Published: 08/03/2006
• Est. Priority Date: 01/13/2005
• Status: Abandoned Application

• Current Assignee: Aaron Johnson
• Original Assignee: Aaron Johnson
• Inventors: Johnson, Aaron
• Application Number:
  US11/034,575
• Publication Number:
  US 20060172688A1
• Time in Patent Office: Days
• US Class Current: 454/254
• CPC Class Codes: F04D 25/088 Ceiling fans
• CPC Class Codes: F04D 29/34 Blade mountings for axial flow compressors F04D29/322
• CPC Class Codes: F04D 29/384 characterised by form

Abstract

A ceiling fan design incorporates a plurality of air-moving blades having a generally vertical orientation. Curvature of the blades causes air to be moved in a generally downward direction. Large blade surface areas are provided to generate desired volumes of air movement at slow speeds.

Claims

1. A ceiling fan, comprising:

a fan stator portion adapted for connection to a ceiling;

a fan rotor portion rotatably connected the stator portion, and adapted to rotate about a substantially vertical axis; and

a plurality of blades connected to and carried by the rotor portion, wherein the blades each have a vertical dimension greater than a horizontal dimension.

2. The ceiling fan of claim 1, wherein each blade is curved so as to have an upper region thereof that is oriented more vertically than a lower region thereof.

3. The fan of claim 1, wherein an inner edge of each blade connects the blade to the rotor portion, and wherein the inner edge is at an angle more than 45 degrees above horizontal.

4. The fan of claim 3, wherein an outer region of each blade is more horizontally oriented than the inner edge.

5. A ceiling fan, comprising:

a fan stator portion adapted for connection to a ceiling;

a fan rotor portion rotatably connected the stator portion, and adapted to rotate about a substantially vertical axis; and

a plurality of blades connected to and carried by the rotor portion, wherein the blades each have a majority of their surface oriented closer to a vertical axis direction than to a horizontal direction.

6. The ceiling fan of claim 5, wherein an angle between a leading edge of each blade and a trailing edge of each blade is greater than 45 degrees above a horizontal plane.

7. The ceiling fan of claim 5, wherein each blade has a vertical dimension greater than a horizontal dimension.

8. The ceiling fan of claim 5, wherein each blade is curved to provide a constantly varying angle to the vertical across the entire surface of the blade.

9. The ceiling fan of claim 5, wherein a lower edge of each blade is more horizontally oriented than an upper edge.