초록

Compact ceiling fans having fan blades with a longitudinal axis extending substantially vertically and ceiling fans having one or more fan blades are extend under the housing of the fan across the span of the fan and are suspended only at the distal ends of radially extending arms.

대표청구항 ▼

1. A ceiling fan suspended by a down rod held by a hanger bracket, comprising: a. a down rod having a longitudinal axis and comprising at least one member;b. a motor having a non-moving portion affixed to the down rod, the motor further having a moving portion affixed to a drive shaft extending down

1. A ceiling fan suspended by a down rod held by a hanger bracket, comprising: a. a down rod having a longitudinal axis and comprising at least one member;b. a motor having a non-moving portion affixed to the down rod, the motor further having a moving portion affixed to a drive shaft extending down from the moving portion of the motor, the drive shaft positioned coaxially with the down rod, and the drive shaft comprising at least one coaxial member;c. a housing that encloses at least a portion of the motor; andd. a plurality of blades rotationally driven by the downwardly extending drive shaft, each blade comprising an upper end, a lower end, a fan blade body longitudinally extending between the upper end and the lower end, a radially inner edge extending longitudinally, and a radially outer edge, the radially inner edge of each blade having a concave shape to accommodate the housing, and each of the blades extends outward radially from the drive shaft at the lower end, curves up and around at least a portion of the housing, and curves back inward radially to meet at a central point with the upper end above the motor and proximate the down rod. 2. The ceiling fan according to claim 1, wherein the drive shaft extends down through an opening in the housing to connect to the lower ends of the plurality of fan blades. 3. The ceiling fan according to claim 2, wherein there is a central bracket rotationally connected to the down rod above the motor, wherein the plurality of blades curve back inward radially to meet at the central bracket, and wherein the central bracket supports the plurality of blades at their upper ends. 4. The ceiling fan according to claim 3, wherein a majority of the radially inner edge of each of the plurality of fan blades is less than a quarter of an inch from the housing. 5. The ceiling fan according to claim 1, wherein there is a central bracket rotationally connected to the down rod above the motor, wherein the plurality of blades curve back inward radially to meet at the central bracket, and wherein the central bracket supports the plurality of blades at their upper ends. 6. The ceiling fan according to claim 1, wherein the body of each of the fan blades is planar. 7. The ceiling fan according to claim 1, wherein the body of each of the fan blades curves between the upper end and the lower end. 8. The ceiling fan according to claim 1, wherein a majority of the radially inner edge of each of the plurality of fan blades is less than a quarter of an inch from the housing. 9. A ceiling fan suspended by a down rod held by a hanger bracket, comprising: a. a down rod having a longitudinal axis and comprising at least one member;b. a motor having a non-moving portion affixed to the down rod, the motor further having a moving portion that rotates at least one of a drive shaft and a plurality of blades around a drive axis of the motor;c. a housing that encloses at least a portion of the motor; andd. wherein the plurality of blades each comprises an upper end, a lower end, a fan blade body longitudinally extending between the upper end and the lower end, a radially inner edge extending longitudinally, and a radially outer edge, the radially inner edge of each blade having a concave shape to accommodate the housing; ande. wherein the upper end of each of the plurality of fan blades is proximate at least one of the housing, the down rod, and the drive shaft;f. wherein the lower end of each of the plurality of fan blades is proximate at least one of the housing, the down rod, and the drive shaft; andg. wherein a majority of the radially inner edge of each of the plurality of fan blades is less than an inch from the housing. 10. The ceiling fan according to claim 9, further comprising a collar affixed to the blades driven by the motor to rotate the plurality of fan blades; and wherein at least 90% of the radially inner edge of each of the plurality of fan blades is less than an inch from the housing. 11. The ceiling fan according to claim 10, wherein there is a central bracket rotationally connected to the down rod above the motor, wherein the plurality of blades curve back inward radially to meet at the central bracket, and wherein the central bracket supports the plurality of blades at their upper ends. 12. The ceiling fan according to claim 9, wherein a portion of the housing rotates with the plurality of fan blades and further wherein all of the radially inner edge of each of the plurality of fan blades is less than an inch from the housing. 13. The ceiling fan according to claim 12, wherein there is a central bracket rotationally connected to the down rod above the motor, wherein the plurality of blades curve back inward radially to meet the a central bracket, and wherein the central bracket supports the plurality of blades at their upper ends. 14. The ceiling fan according to claim 13, wherein a majority of the radially inner edge of each of the plurality of fan blades is less than a quarter of an inch from the housing. 15. The ceiling fan according to claim 9, wherein there is a central bracket rotationally connected to the down rod above the motor, wherein the plurality of blades curve back inward radially to meet at the central bracket, and wherein the central bracket supports the plurality of blades at their upper ends. 16. The ceiling fan according to claim 9, wherein each of the fan blades is supported in a central portion and the upper end and lower end is free. 17. The ceiling fan according to claim 9, wherein each of the fan blades is supported in a central portion and the upper end and lower end is free and further wherein and further wherein a majority of the radially inner edge of each of the plurality of fan blades is less than a quarter of an inch from the housing. 18. The ceiling fan according to claim 9, wherein a majority of the radially inner edge of each of the plurality of fan blades is less than a quarter of an inch from the housing. 19. A ceiling fan suspended by a down rod held by a hanger bracket, comprising: a. a down rod having a longitudinal axis and comprising at least one member;b. a motor having a non-moving portion affixed to the down rod, the motor further having a moving portion that rotates at least first and second arms around a drive axis of the motor;c. a housing that encloses at least a portion of the motor, the arms extending radially outward; andd. a fan blade having first and second ends supported by the first and second arms, respectively, the first arm extending outward radially to support a first distal end of the fan blade and the second arm extending outward radially to support a second distal end of the fan blade with the distal ends of the fan blade being supported by distal ends of the first and second arms, the first distal end of the fan blade affixed to the distal end of the first arm, and the second distal end of the fan blade affixed to the distal end of the second arm; ande. the fan blade extending down from the distal end of the first arm, extending under the housing, and extending back up to the distal end of the second arm, the fan blade being unsupported by the housing and unsupported by the motor. 20. The ceiling fan according to claim 19, wherein the fan blade is unsupported by the arms, except at their respective distal ends.