US20080107527A1 - Ceiling fan - Google Patents
Ceiling fan Download PDFInfo
- Publication number
- US20080107527A1 US20080107527A1 US11/557,161 US55716106A US2008107527A1 US 20080107527 A1 US20080107527 A1 US 20080107527A1 US 55716106 A US55716106 A US 55716106A US 2008107527 A1 US2008107527 A1 US 2008107527A1
- Authority
- US
- United States
- Prior art keywords
- assembly
- motor
- downrod
- ceiling fan
- fan blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/088—Ceiling fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
- F04D29/054—Arrangements for joining or assembling shafts
Definitions
- the invention is directed to a ceiling fan.
- a typical ceiling fan includes a down rod assembly suspended from the ceiling with a motor shaft connected to a lower portion of the down rod assembly.
- a motor body rotates about the motor shaft.
- Blade mounting arms also referred to as blade irons, are connected to the motor body and extend out of an opening of the motor housing or below the motor housing.
- Motors used in the art tend to be proximate to the fan blades. Typically, fan blades are connected to the motor via blade irons. However, motors tend to be cumbersome and unattractive causing manufacturers to encase or mask the motor within a housing. Unfortunately, the bulk of the motor limits the aesthetics of the ceiling fan housing. Furthermore, when the downrod assembly positions the ceiling fan a distance from the ceiling, horizontal movement of the ceiling fan may occur during operation.
- a ceiling fan comprising a motor assembly, a shaft having a first end and a second end, and a hub having a fan blade assembly wherein the first end of the shaft is coaxially coupled to the motor assembly and the second end of the shaft is coaxially coupled to the fan blade assembly, and wherein the motor assembly rotates the shaft and the shaft rotates the fan blade assembly.
- the motor assembly and fan blade assembly may be substantially remote to each other.
- the shaft is coupled to the motor assembly via a first attachment mechanism and the shaft is coupled to the fan blade assembly via a second attachment mechanism.
- the first attachment mechanism comprises a coupling interface.
- the second attachment mechanism comprises a mechanical fastener.
- Some embodiments of the invention provide a system for attaching a light kit to a ceiling fan assembly having a motor, a motor housing, a fan blade assembly and a downrod, and comprising an inner downrod, an outer downrod, and a sleeve wherein the sleeve and the inner downrod are stationary during operation, and wherein the outer downrod is coupled to the fan blade assembly and rotates with the motor, and the light kit is coupled to the inner downrod.
- a system for minimizing horizontal movement of a ceiling fan assembly having a motor and a fan blade assembly comprising a support ring, one or more cables, and a hub wherein the support ring couples the ceiling fan assembly to the ceiling, and wherein the cables couple the support ring to the hub is provided.
- the cable further comprises a tensioning mechanism for tightening or lessening the tension in the cables.
- the hub is further coupled to the fan blade assembly and the hub is stationary during operation and the fan blade assembly rotates with the motor during operation.
- FIG. 1 shows a side elevation view of an embodiment of the invention.
- FIG. 2 shows an enlarged cut-away view of the embodiment in FIG. 1 .
- the ceiling fan 10 is connected to the ceiling via the mounting assembly 12 .
- the mounting assembly 12 connects to the ceiling, or other support surface, on one side and couples to the motor assembly 14 on the other side. Electrical wires for powering and controlling the ceiling fan 10 pass through the mounting assembly 12 to the motor assembly 14 .
- the mounting assembly 12 may be an interface plate that connects to a junction box in the ceiling. The interface plate also supports some of the weight of the ceiling fan 10 . Although an interface plate is illustrated as connecting the ceiling fan 10 to the ceiling, other commonly known mechanical methods of coupling the ceiling fan 10 to the ceiling or other support surface are contemplated as being included in the present invention, and include, without limitation, mechanical fasteners, and the like.
- the motor assembly 14 includes a housing 100 and a rotor 102 .
- the rotor 102 may be situated within the housing 100 .
- the housing 100 remains stationary while the rotor 102 rotates.
- the housing 100 also supports some of the weight of the ceiling fan 10 .
- the rotor 102 further includes a shaft (not shown) that passes through the rotor 102 and does not rotate during operation.
- the shaft is a passageway for allowing a plurality of electric wires 106 to pass therethrough.
- the motor assembly 14 is coupled to the downrod assembly 16 .
- the rotor 102 is coupled to the downrod assembly 16 .
- the downrod assembly 16 consists of an inner downrod 28 , an outer downrod 30 and a sleeve 32 .
- the downrod assembly 16 may be any suitable length for operation of the ceiling fan 10 . In alternate embodiments, the downrod assembly 16 is any length that one skilled in the art is able to design and engineer having structural support and aesthetic appeal.
- the inner downrod 28 has a first end 34 coupled to the shaft which passes through the rotor 102 .
- the inner downrod 28 remains stationary during operation and has a passageway therethrough for passing the plurality of electrical wires 106 through to the light kit 20 .
- the electrical wires 106 may be used for powering and controlling the light kit 20 .
- the inner downrod 28 is coupled at the first end 34 to the shaft by any commonly known mechanical attachment methods, such as, but not limited to couplings, pins, screws, snap fits, spring loaded connectors and the like, including a plurality of mechanical fasteners.
- Opposite the first end 34 is a second end 36 of the inner downrod 28 that is coupled to the light kit 20 .
- a mechanical fastener is illustrated as coupling the inner downrod 28 to the light kit 20
- other commonly known mechanical methods of coupling the inner downrod 28 to the light kit 20 are contemplated as being included in the present invention, and include, without limitation, couplings, pins, screws, snap fits, spring loaded connectors and the like including a plurality of mechanical fasteners.
- the light kit 20 does not rotate about an axis defined by the downrod assembly 16 during operation.
- the outer downrod 30 rotates with the rotor 102 during operation via the coupling assembly 22 .
- the coupling assembly 22 may be a mating interface.
- the coupling assembly 22 also includes one or more couplings.
- the mating interface includes a first interface 24 on the rotor 102 and a second interface 26 on the outer downrod 30 of the downrod assembly 16 .
- the first interface 24 and the second interface 26 interconnect with each other.
- the first interface 24 may be an attachment to the rotor 102 .
- the first interface 24 is coupled to the rotor 102 by a plurality of fasteners.
- any commonly known mechanical fastener may be used to couple the first interface to the rotor 102 , such as, but not limited to mechanical fasteners, pins, screws, spring loaded connectors and the like.
- the second interface 26 may be molded as part of the outer downrod 30 or may be coupled to the outer downrod 30 .
- the second interface 26 may also include one or more bearing assemblies 108 .
- the second interface 26 of the coupling assembly 22 is typically on a first end 38 of the outer downrod 30 .
- the second interface 26 is coupled to the outer downrod 30 by a plurality of fasteners.
- any commonly known mechanical fastener may be used to couple the second interface 26 is coupled to the outer downrod 30 , such as, but not limited to mechanical fasteners, pins, screws, spring loaded connectors and the like.
- the hub 18 includes an upper portion 46 which remains stationary during operation of the ceiling fan and a fan blade assembly 120 which rotates during operation of the ceiling fan. Opposite the first end 38 of the outer downrod 30 is a second end 40 which is coupled to the fan blade assembly 120 .
- a mechanical fastener 200 such as a set screw, is illustrated as coupling the second end 40 of the outer downrod 30 to the fan blade assembly 120
- other commonly known mechanical methods of coupling the outer downrod 30 to the fan blade assembly 120 are contemplated as being included in the present invention, and include, without limitation, pins, screws, threaded connectors, spring loaded connectors and the like, including a plurality of fasteners 200 .
- the outer downrod 30 encircles the inner downrod 28 .
- the outer downrod 30 and the inner downrod 28 are not fixedly coupled, allowing them to operate independently. In some embodiments, there may be one or more bearing assemblies between the outer downrod 30 and the inner downrod 28 .
- Both the outer downrod 30 and the inner downrod 28 are encased by the sleeve 32 .
- the sleeve 32 has a first end 42 and a second end 44 .
- the first end 42 of the sleeve 32 is coupled to the motor housing 100 .
- the sleeve 32 remains stationary during operation.
- a mechanical fastener 202 such as a screw, is illustrated as coupling the first end 42 of the sleeve 32 to the motor housing 100
- other commonly known mechanical methods of coupling the first end 42 of the sleeve 32 to the motor housing 100 are contemplated as being included in the present invention, and include, without limitation, pins, screws, spring loaded connectors and the like, including a plurality of mechanical fasteners.
- the second end 44 of the sleeve 32 is coupled to the upper portion 46 of the hub 18 .
- the upper portion 46 of the hub 18 remains stationary during operation.
- a mechanical fastener 58 is illustrated as coupling the upper portion 46 of the hub 18 to the sleeve 32
- other methods of coupling the upper portion 46 of the hub 18 to the sleeve 32 are contemplated as being included in the present invention, and include, without limitation, pins, screws, spring loaded connectors and the like, including a plurality of mechanical fasteners 58 .
- one or more bearing assemblies 60 may be placed between the second end 44 of the sleeve 32 adjacent to the fan blade assembly 18 .
- a bearing assembly 62 may be placed adjacent to the second end 40 of the inner downrod 28 .
- a plurality of cables 48 couple the upper portion 46 of the hub 18 to a support ring 50 .
- the support ring 50 is coupled to the mounting assembly 12 .
- a nut and bolt assembly is illustrated as coupling the support ring 50 to the mounting assembly 12
- other commonly known mechanical methods of attaching the support ring 50 to the mounting assembly 12 may be used and include without limitations, mechanical fasteners, screws, bolts, studs and the like.
- the number of cables 48 may be determined by one skilled in the art based on mechanical and decorative considerations. Mechanical considerations include removing all degrees of freedom in the horizontal plane for the hub 18 . Decorative considerations are based upon aesthetic appeal. In a preferred embodiment, there are three (3) cables 48 .
- the cables 48 may be used to minimize the amount of horizontal movement of the ceiling fan 10 during operation.
- the cables 48 have a first section 52 and a second section 54 .
- the second section 54 includes a tensioning mechanism 56 for tightening or lessening the tension in the cables 48 .
- a tensioning mechanism 56 is illustrated in the Figures, other methods of lessening or minimizing the horizontal movement are contemplated as being included in the present invention, and include, without limitation, spring loaded connectors, turnbuckles and the like.
- a plurality of cables 48 are illustrated in the Figures, other methods of lessening or minimizing the horizontal movement are contemplated as being included in the present invention, and include, without limitation, guidewires, chains, and the like.
- the ceiling fan 10 is further coupled to a light source 20 .
- the light source 20 is electrically powered.
- Such a device may be generally referred to as an electrical device.
- An electrical device is defined herein as a device powered by alternating current or direct current, for example, or any other conventional electrical power source.
- the light source 20 is connected in a fixed manner to the second end 36 of the inner downrod 28 , i.e., not rotating relative to the motor.
Abstract
The invention relates generally to fans, and in particular to ceiling fans. The ceiling fan includes a motor with a shaft that rotates with the rotation of the motor. A fan blade assembly is coaxially coupled to the motor shaft. The motor and fan blade assembly are substantially remote to each other.
Description
- Not applicable.
- Not applicable.
- Not applicable.
- The invention is directed to a ceiling fan.
- A typical ceiling fan includes a down rod assembly suspended from the ceiling with a motor shaft connected to a lower portion of the down rod assembly. A motor body rotates about the motor shaft. Blade mounting arms, also referred to as blade irons, are connected to the motor body and extend out of an opening of the motor housing or below the motor housing.
- Motors used in the art tend to be proximate to the fan blades. Typically, fan blades are connected to the motor via blade irons. However, motors tend to be cumbersome and unattractive causing manufacturers to encase or mask the motor within a housing. Unfortunately, the bulk of the motor limits the aesthetics of the ceiling fan housing. Furthermore, when the downrod assembly positions the ceiling fan a distance from the ceiling, horizontal movement of the ceiling fan may occur during operation.
- Some embodiments of the invention provide a ceiling fan comprising a motor assembly, a shaft having a first end and a second end, and a hub having a fan blade assembly wherein the first end of the shaft is coaxially coupled to the motor assembly and the second end of the shaft is coaxially coupled to the fan blade assembly, and wherein the motor assembly rotates the shaft and the shaft rotates the fan blade assembly. In such embodiments of the invention, the motor assembly and fan blade assembly may be substantially remote to each other. In some embodiments of the invention, the shaft is coupled to the motor assembly via a first attachment mechanism and the shaft is coupled to the fan blade assembly via a second attachment mechanism. In yet other embodiments of the invention, the first attachment mechanism comprises a coupling interface. In yet other embodiments of the invention, the second attachment mechanism comprises a mechanical fastener.
- Some embodiments of the invention provide a system for supporting a ceiling fan assembly having a motor, a motor housing, a fan blade assembly and a downrod, the system comprising coupling means for coupling the ceiling fan assembly to a support surface and supporting at least some of the weight of the ceiling fan assembly, and stability means for reducing the amount of horizontal movement of the ceiling fan assembly. In some of such embodiments, the stability means comprise a plurality of cables. In some embodiments of the invention, the cables extend from the coupling means to an upper portion of a hub which is coupled to the fan blade assembly. In yet other embodiments of the invention, the upper portion of the hub is static during the operation of the ceiling fan. In yet other embodiments of the invention, the cables comprise a tensioning mechanism which adjusts to secure the ceiling fan assembly to the coupling means and the upper portion of the hub.
- Some embodiments of the invention provide a system for attaching a light kit to a ceiling fan assembly having a motor, a motor housing, a fan blade assembly and a downrod, and comprising an inner downrod, an outer downrod, and a sleeve wherein the sleeve and the inner downrod are stationary during operation, and wherein the outer downrod is coupled to the fan blade assembly and rotates with the motor, and the light kit is coupled to the inner downrod.
- In yet other embodiments of the invention a system for minimizing horizontal movement of a ceiling fan assembly having a motor and a fan blade assembly, the system comprising a support ring, one or more cables, and a hub wherein the support ring couples the ceiling fan assembly to the ceiling, and wherein the cables couple the support ring to the hub is provided. In some such embodiments the cable further comprises a tensioning mechanism for tightening or lessening the tension in the cables. In some embodiments of the invention, the hub is further coupled to the fan blade assembly and the hub is stationary during operation and the fan blade assembly rotates with the motor during operation.
- The accompanying drawings, which are incorporated in and constitute a part of this specification, exemplify the invention and together with the description, serve to explain the principles of the invention.
-
FIG. 1 shows a side elevation view of an embodiment of the invention. -
FIG. 2 shows an enlarged cut-away view of the embodiment inFIG. 1 . - Reference will now be made in detail to embodiments of the invention, an example of which is illustrated in the accompanying drawings.
- Referring to
FIGS. 1 and 2 showing an embodiment of the invention, aceiling fan 10 generally includes amounting assembly 12, amotor assembly 14, adownrod assembly 16, ahub assembly 18, and alight kit 20. In a preferred embodiment, themotor assembly 14 and thehub assembly 18 are coaxially coupled via thedownrod assembly 16. - The
ceiling fan 10 is connected to the ceiling via themounting assembly 12. Themounting assembly 12 connects to the ceiling, or other support surface, on one side and couples to themotor assembly 14 on the other side. Electrical wires for powering and controlling theceiling fan 10 pass through themounting assembly 12 to themotor assembly 14. Themounting assembly 12 may be an interface plate that connects to a junction box in the ceiling. The interface plate also supports some of the weight of theceiling fan 10. Although an interface plate is illustrated as connecting theceiling fan 10 to the ceiling, other commonly known mechanical methods of coupling theceiling fan 10 to the ceiling or other support surface are contemplated as being included in the present invention, and include, without limitation, mechanical fasteners, and the like. - Referring to
FIG. 2 , themotor assembly 14 includes ahousing 100 and arotor 102. Therotor 102 may be situated within thehousing 100. During operation, thehousing 100 remains stationary while therotor 102 rotates. Thehousing 100 also supports some of the weight of theceiling fan 10. Therotor 102 further includes a shaft (not shown) that passes through therotor 102 and does not rotate during operation. The shaft is a passageway for allowing a plurality ofelectric wires 106 to pass therethrough. - The
motor assembly 14 is coupled to thedownrod assembly 16. In some embodiments, therotor 102 is coupled to thedownrod assembly 16. Thedownrod assembly 16 consists of aninner downrod 28, anouter downrod 30 and asleeve 32. Thedownrod assembly 16 may be any suitable length for operation of theceiling fan 10. In alternate embodiments, thedownrod assembly 16 is any length that one skilled in the art is able to design and engineer having structural support and aesthetic appeal. - The
inner downrod 28 has afirst end 34 coupled to the shaft which passes through therotor 102. Theinner downrod 28 remains stationary during operation and has a passageway therethrough for passing the plurality ofelectrical wires 106 through to thelight kit 20. Theelectrical wires 106 may be used for powering and controlling thelight kit 20. Theinner downrod 28 is coupled at thefirst end 34 to the shaft by any commonly known mechanical attachment methods, such as, but not limited to couplings, pins, screws, snap fits, spring loaded connectors and the like, including a plurality of mechanical fasteners. Opposite thefirst end 34 is asecond end 36 of theinner downrod 28 that is coupled to thelight kit 20. Although a mechanical fastener is illustrated as coupling theinner downrod 28 to thelight kit 20, other commonly known mechanical methods of coupling theinner downrod 28 to thelight kit 20 are contemplated as being included in the present invention, and include, without limitation, couplings, pins, screws, snap fits, spring loaded connectors and the like including a plurality of mechanical fasteners. Thelight kit 20 does not rotate about an axis defined by thedownrod assembly 16 during operation. - The
outer downrod 30 rotates with therotor 102 during operation via thecoupling assembly 22. Thecoupling assembly 22 may be a mating interface. In a preferred embodiment, thecoupling assembly 22 also includes one or more couplings. The mating interface includes afirst interface 24 on therotor 102 and asecond interface 26 on theouter downrod 30 of thedownrod assembly 16. Thefirst interface 24 and thesecond interface 26 interconnect with each other. Although a mating interface which includes a plurality of couplings is illustrated as coupling therotor 102 to theouter downrod 30, other commonly known mechanical methods of coupling therotor 102 to theouter downrod 30 are contemplated as being included in the present invention, and include, without limitation, mechanical fasteners, pins, screws, spring loaded connectors and the like. Thefirst interface 24 may be an attachment to therotor 102. In a preferred embodiment, thefirst interface 24 is coupled to therotor 102 by a plurality of fasteners. In alternate embodiments, any commonly known mechanical fastener may be used to couple the first interface to therotor 102, such as, but not limited to mechanical fasteners, pins, screws, spring loaded connectors and the like. Thesecond interface 26 may be molded as part of theouter downrod 30 or may be coupled to theouter downrod 30. Thesecond interface 26 may also include one ormore bearing assemblies 108. - The
second interface 26 of thecoupling assembly 22 is typically on afirst end 38 of theouter downrod 30. In a preferred embodiment, thesecond interface 26 is coupled to theouter downrod 30 by a plurality of fasteners. In alternate embodiments, any commonly known mechanical fastener may be used to couple thesecond interface 26 is coupled to theouter downrod 30, such as, but not limited to mechanical fasteners, pins, screws, spring loaded connectors and the like. - The
hub 18 includes anupper portion 46 which remains stationary during operation of the ceiling fan and afan blade assembly 120 which rotates during operation of the ceiling fan. Opposite thefirst end 38 of theouter downrod 30 is asecond end 40 which is coupled to thefan blade assembly 120. Although amechanical fastener 200, such as a set screw, is illustrated as coupling thesecond end 40 of theouter downrod 30 to thefan blade assembly 120, other commonly known mechanical methods of coupling theouter downrod 30 to thefan blade assembly 120 are contemplated as being included in the present invention, and include, without limitation, pins, screws, threaded connectors, spring loaded connectors and the like, including a plurality offasteners 200. Theouter downrod 30 encircles theinner downrod 28. Theouter downrod 30 and theinner downrod 28 are not fixedly coupled, allowing them to operate independently. In some embodiments, there may be one or more bearing assemblies between the outer downrod 30 and theinner downrod 28. - Both the outer downrod 30 and the
inner downrod 28 are encased by thesleeve 32. Thesleeve 32 has afirst end 42 and asecond end 44. Thefirst end 42 of thesleeve 32 is coupled to themotor housing 100. Thesleeve 32 remains stationary during operation. Although amechanical fastener 202, such as a screw, is illustrated as coupling thefirst end 42 of thesleeve 32 to themotor housing 100, other commonly known mechanical methods of coupling thefirst end 42 of thesleeve 32 to themotor housing 100 are contemplated as being included in the present invention, and include, without limitation, pins, screws, spring loaded connectors and the like, including a plurality of mechanical fasteners. Thesecond end 44 of thesleeve 32 is coupled to theupper portion 46 of thehub 18. Theupper portion 46 of thehub 18 remains stationary during operation. Although amechanical fastener 58 is illustrated as coupling theupper portion 46 of thehub 18 to thesleeve 32, other methods of coupling theupper portion 46 of thehub 18 to thesleeve 32 are contemplated as being included in the present invention, and include, without limitation, pins, screws, spring loaded connectors and the like, including a plurality ofmechanical fasteners 58. To reduce the friction between theupper portion 46 of thehub 18 and theouter downrod 30, one ormore bearing assemblies 60 may be placed between thesecond end 44 of thesleeve 32 adjacent to thefan blade assembly 18. To reduce the friction between thefan blade assembly 120 and theinner downrod 28, a bearingassembly 62 may be placed adjacent to thesecond end 40 of theinner downrod 28. - In some embodiments, a plurality of
cables 48 couple theupper portion 46 of thehub 18 to asupport ring 50. Thesupport ring 50 is coupled to the mountingassembly 12. Although a nut and bolt assembly is illustrated as coupling thesupport ring 50 to the mountingassembly 12, other commonly known mechanical methods of attaching thesupport ring 50 to the mountingassembly 12 may be used and include without limitations, mechanical fasteners, screws, bolts, studs and the like. The number ofcables 48 may be determined by one skilled in the art based on mechanical and decorative considerations. Mechanical considerations include removing all degrees of freedom in the horizontal plane for thehub 18. Decorative considerations are based upon aesthetic appeal. In a preferred embodiment, there are three (3)cables 48. In other embodiments, there are one, two ormore cables 48. Thecables 48 may be used to minimize the amount of horizontal movement of theceiling fan 10 during operation. In a preferred embodiment, thecables 48 have afirst section 52 and asecond section 54. Thesecond section 54 includes atensioning mechanism 56 for tightening or lessening the tension in thecables 48. Although atensioning mechanism 56 is illustrated in the Figures, other methods of lessening or minimizing the horizontal movement are contemplated as being included in the present invention, and include, without limitation, spring loaded connectors, turnbuckles and the like. Although a plurality ofcables 48 are illustrated in the Figures, other methods of lessening or minimizing the horizontal movement are contemplated as being included in the present invention, and include, without limitation, guidewires, chains, and the like. - In some embodiments, the
ceiling fan 10 is further coupled to alight source 20. Typically thelight source 20 is electrically powered. Such a device may be generally referred to as an electrical device. An electrical device is defined herein as a device powered by alternating current or direct current, for example, or any other conventional electrical power source. Thelight source 20 is connected in a fixed manner to thesecond end 36 of theinner downrod 28, i.e., not rotating relative to the motor. - While the invention has been described with reference to one or more particular embodiments, those skilled in the art will recognize that many modifications may be made thereto without departing from the spirit and scope of the invention. Each of these embodiments, and obvious variations thereof, is contemplated as falling within the spirit and scope of the claimed invention, which is set forth in the following claims.
Claims (14)
1. A ceiling fan comprising:
a motor assembly;
a shaft having a first end and a second end; and
a hub comprising a fan blade assembly;
wherein the first end of the shaft is coaxially coupled to the motor assembly and the second end of the shaft is coaxially coupled to the fan blade assembly,
wherein the motor assembly rotates the shaft and the shaft rotates the fan blade assembly.
2. The ceiling fan of claim 1 , wherein the motor assembly and fan blade assembly are substantially remote to each other.
3. The ceiling fan of claim 1 , wherein the shaft is coupled to the motor assembly via a first attachment mechanism and the shaft is coupled to the fan blade assembly via a second attachment mechanism.
4. The ceiling fan of claim 3 , wherein the first attachment mechanism comprises a coupling interface.
5. The ceiling fan of claim 3 , wherein the second attachment mechanism comprises a mechanical fastener.
6. A system for supporting a ceiling fan assembly having a motor, a motor housing, a fan blade assembly and a downrod, the system comprising:
a. coupling means for coupling the ceiling fan assembly to a support surface and supporting at least some of the weight of the ceiling fan assembly; and
b. stability means for reducing the amount of horizontal movement of the ceiling fan assembly.
7. The system of claim 6 , wherein the stability means comprises a plurality of cables.
8. The system of claim 7 further comprising a support ring and wherein the cables extend from the support ring to an upper portion of a hub which is coupled to the fan blade assembly.
9. The system of claim 8 , wherein the upper portion of the hub is static during the operation of the ceiling fan.
10. The system of claim 7 , wherein the cables comprise a tensioning mechanism which adjusts to secure the ceiling fan assembly to the coupling means and the upper portion of the hub.
11. A system for attaching a light kit to a ceiling fan assembly having a motor, a motor housing, a fan blade assembly and a downrod, the system comprising:
a. an inner downrod;
b. an outer downrod; and
c. a sleeve
wherein the sleeve and the inner downrod are stationary during operation,
wherein the outer downrod is coupled to the fan blade assembly and rotates with the motor, and the light kit is coupled to the inner downrod.
12. A system for minimizing horizontal movement of a ceiling fan assembly having a motor and a fan blade assembly, the system comprising:
a. a support ring;
b. one or more cables; and
c. a hub
wherein the support ring couples the ceiling fan assembly to the ceiling,
wherein the cables couple the support ring to the hub.
13. The system of claim 12 wherein the cable further comprises a tensioning mechanism for tightening or lessening the tension in the cables.
14. The system of claim 12 wherein the hub is further coupled to the fan blade assembly and the hub is stationary during operation and the fan blade assembly rotates with the motor during operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/557,161 US20080107527A1 (en) | 2006-11-07 | 2006-11-07 | Ceiling fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/557,161 US20080107527A1 (en) | 2006-11-07 | 2006-11-07 | Ceiling fan |
Publications (1)
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US20080107527A1 true US20080107527A1 (en) | 2008-05-08 |
Family
ID=39359887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/557,161 Abandoned US20080107527A1 (en) | 2006-11-07 | 2006-11-07 | Ceiling fan |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US20130099078A1 (en) * | 2011-10-21 | 2013-04-25 | Joseph Karl Rafalik | Security Mounting Pole Apparatus and Method of Use |
ITMI20120042A1 (en) * | 2012-01-17 | 2013-07-18 | Cmp Impianti S R L | DEVICE FOR VENTILATION OF AN ENVIRONMENT |
WO2014070747A1 (en) * | 2012-10-30 | 2014-05-08 | Delta T Corporation | Fan mounting system |
US20170167495A1 (en) * | 2015-12-14 | 2017-06-15 | Hunter Fan Company | Ceiling fan |
CN107806448A (en) * | 2017-10-11 | 2018-03-16 | 东莞市联洲知识产权运营管理有限公司 | A kind of mounting structure on energy-saving industrial fan |
US20180212391A1 (en) * | 2014-10-16 | 2018-07-26 | Hunter Fan Company | Ceiling fan kit |
US10851939B2 (en) | 2018-11-02 | 2020-12-01 | Delta T, Llc | Restrictor for a dynamic fan mount |
US10995917B2 (en) * | 2019-03-07 | 2021-05-04 | David Robert NOWAK | Hub based lighting system |
US11118730B1 (en) | 2018-08-29 | 2021-09-14 | Delta T, Llc | Fan mounting apparatus |
US11578782B1 (en) | 2018-08-29 | 2023-02-14 | Delta T, Llc | Guy wire connector for ceiling fan |
US11674526B2 (en) | 2016-01-22 | 2023-06-13 | Hunter Fan Company | Ceiling fan having a dual redundant motor mounting assembly |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MINKA LIGHTING, INC., CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GAJEWSKI, MARK;REEL/FRAME:019618/0023 Effective date: 20070724 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |