1409 results about "Ceiling fan" patented technology

A change-over device of pull cord control and wireless remote control for a DC brushless-motor ceiling fan is to have a driver installed in a ceiling fan basic body, and the driver has a detecting unit for detecting whether or not a connector positioned in a hanging bell is connected with a wireless control switch unit so as to control the blades of the DC brushless-motor ceiling fan to rotate by pull cord control or by wireless remote control. Further, the connector is installed inside the hanging bell; therefore, when the DC brushless-motor ceiling fan is to be additionally provided with a wireless control switch unit, it is convenient and safe in installation.

Twisted ceiling fan blades for low, medium and high speed operation of less than approximately 250 rpm. The novel blades twisted blades can be configured for 60″ and 64″ diameter fans, and have less blades (3 for example) than conventional flat type bladed fans having 4, 5 blades and have greater air flow and less power draw results than the conventional flat 54 inch fans. Any of the novel twisted blades of 54″, 60″ and 64″ can be run at reduced speeds, drawing less Watts than conventional fans and still perform better with more air flow and less problems than conventional flat type conventional blades.

A driving apparatus for a DC brushless motor of a ceiling fan is provided. By setting at least one coder and one sensor outside the DC brushless motor, the driving apparatus can sense the position of magnetic poles of the motor for driving the motor. Meanwhile, a controller set with the motor stores the rotation speed of the motor before being turned off by detecting the turn-off time of a turn-on / off signal.

A ceiling paddle fan fixture for improving the quality of the air in the room and various methods of enhancing room air quality, with particular application in public spaces such as hospitals, health care institutions, dormitories, schools and offices. A UV-C source and an air mover are combined in a single fixture which uses a low intensity UV-C source and a paddle ceiling fan to significantly increase the mixing of the treated with the untreated room air. Sterilization of room air is achieved by the passage of a high volume of air at a relatively slow speed through a relatively low intensity UV-C field.

Twisted ceiling fan blades for low, medium and high speed operation of less than approximately 250 rpm. The novel blades twisted blades can be configured for 60″ and 64″ diameter fans, and have less blades (3 for example) than conventional flat type bladed fans having 4, 5 blades and have greater air flow and less power draw results than the conventional flat 54 inch fans. Any of the novel twisted blades of 54″, 60″ and 64″ can be run at reduced speeds, drawing less Watts than conventional fans and still perform better with more air flow and less problems than conventional flat type conventional blades.

Improvements in a smoke alarm are presented. The multifunction smoke alarm unit includes separate sensors within a single enclosure for detecting smoke and occupancy, sounding a distinctive audible alarm when combustion is detected or the presence of a person within the area of the sensor. The multifunction smoke alarm can replace an existing single function smoke alarm. Multiple multifunction smoke alarms are networkable together for various purposes. Additional features include intruder alarm, visitor annunciator, integrated illumination source, external lighting control, HVAC system control, ceiling fan control, ventilation control, and / or fire safety system control. The proposed multifunction smoke alarm provides much-needed improvements for security, energy saving, safety, and user convenience without the need for completely separate systems for each purpose.

The suspended ceiling fan generates a sustained flow of air, which can be aimed at one spot, such as a person's face. In one embodiment, the suspended ceiling fan has an elongated member, a track connector, a swivel, and a fan unit. The elongated member has first and second opposing ends. The track connector is attached to the first end, and is adapted for attachment to an existing track, such as a track lighting system, or other support for a suspended lighting system. In one mode of operation the connector snaps into the track. In another embodiment, the ceiling fan comprises an adjustable arm having a hinged joint. The fan may be moved along the track and pivoted on the swivel to direct airflow in any desired direction.

A high-efficiency air handler that is suitable for moving large volumes of air. The air handler comprises a coil and a fan. The total air volume moving through the unit is preferably over about 2000 CFM, with a total fan static pressure rise of less than about 0.5 inches and preferably less than 0.2 inches of water. The fan is preferably a modified ceiling fan with a rotational speed of less than about 450 rpm. The air handler is preferably part of a system where dehumidification and sensible cooling functions are separate. The separate dehumidification allows for much higher supply air temperatures, preferably within about 10° F. of the space temperature. Low-velocity air distribution through a ceiling plenum or a vent into the space allows for very low fan static pressures, which greatly reduces fan energy use compared to conventional ducted systems. The low static pressures and high supply-air temperatures allow the use of existing drop ceiling construction with little modification. The system can also include low-cost thermal storage. Latent thermal storage is in the form of a concentrated liquid desiccant solution. Chilled water storage is another option. The result is a major improvement in energy efficiency and comfort while reducing installed cost and peak electrical demand of the system.

Ceiling fan blades for maximizing air flow at operational speeds of up to approximately 200 revolutions per minute(rpm). The blades have a positive twist at the tip ends of approximately 5 degrees to approximately 10 degrees parallel to the ceiling. The root end of the blades closest to the motor can have a positive twist exceeding that of the tip end and can be approximately 20 to approximately 35 degrees parallel to the ceiling. The ceiling fans can have individual blade lengths of approximately 20 inches and overall spans of up to approximately 52 inches and up to approximately 54 inches. Each embodiment can use three, four, and five blades, with the blades being made of injection molded plastic. and the like. The embodiments can include built in light kit domes.

Embodiments of the present invention provide systems and methods for mounting an electrically-powered device to a ceiling or other supporting structure. The electrically-powered device can be, for example, a ceiling fan, a ceiling fan with a lighting fixture, or a lighting fixture.

A low-profile ceiling fan which utilizes a fan assembly in a horizontal configuration is herein disclosed. The fan includes an enclosure that mounts to the ceiling. The fan has a low-profile design for low ceilings as commonly found in basements, attics, patio enclosures, mobile homes, recreational vehicles and similar locations. The fan enclosure includes at least one fluorescent lamp mounted alongside the fan. Accessories such as heaters, security cameras, a remote control, and the like are available. The fan includes a heating element and a blower to distribute heated air.

Captive fasteners and alignment posts for allowing ceiling fan blade arms to be easily and safely mounted onto ceiling mounted motors. Fasteners such as Philips head screws, regular head screws and bolts can be held captive in place on blade mounting arms with rubber grommet type washers. The grommet type washers have portions that can be sandwiched between the fastener head and the mounting arms and sandwiched between the mounting arms and rotating member on the ceiling fan motor in order to reduce vibration noise and movement Alternatively, novel captive fasteners having a thicker neck portion between a threaded end a the bead can be positioned within the grommet type washers. A second embodiment of the captive fastener is floatingly supported within the mounting arm between the fastener head and a ledge within the mounting arm through-hole, with an enlarged threaded end of the fastener on the opposite side of the ledge. A tip portion of these captive fasteners can remain extended from the upper surface of the mounting arm and is used to guide the fasteners to the mateable threaded openings on the bottom of the rotating member on the motor. A third embodiment incorporates at least one alignment post and mateable receiving hole for allowing the mounting arm to be properly aligned with the correct position on the rotating member. The alignment posts can be tapered, rounded or having flat sides such as squares and hexagons, to further position and hold the mounting arms to the rotating members on the motor. The alignment post(s) can be located on the upper surface of the mounting arms or extend downward from the rotating member of the motor. With the alignment posts either or both captive fasteners or regular fasteners such as bolts, regular head and Philips head screws can be used. Additionally, the alignment post(s) can be used without the grommet shaped washers. The alignment members and captive fasteners eliminate wobble effects by evenly attaching the mounting blade arm to the ceiling fan motor.

A ceiling fan light LED assembly device, wherein a plurality of light-emitting bodies are disposed within light tubes, and a drive circuit within a mount disc directly actuates the light-emitting bodies to emit light. Furthermore, a reflecting protective cover having a light focusing and refracting effect is disposed on the mount disc, which is not only able to transmit light emitted by the light-emitting bodies H through the reflecting protective cover F6, but is also able to transmit the light through an arched surface of the transparent shade I, thereby enhancing illumination effectiveness of the refracted light rays.

Systems, devices and methods for providing a battery powered wall mounted remote control for ceiling fans and lights. The battery powered remote control can be installable over an existing wall switch without hard wiring into electrical system at the switch box. The remote control housing is decorative in nature and has functional fan and light buttons for remotely controlling operation of the fan and light fixture. The remote housing attaches to the hard wired wall mounted switch using existing hardware that previously held the switch plate in place. The remote housing has a door that opens to allow the original fan / light switch to still be used in an on / off power control for the device being controlled by the battery powered wall mounted remote control for ceiling fans and lights.

A ceiling fan comprising bracket components which are easily and conveniently attachable in a suitable position by one person thru simple operation and adjustment of mechanical parts. Attachment components are removably secured to a ceiling plate connected to a house circuit in an initial room then capable of easy removal therefrom and attachable to a ceiling plate installed in another room. A fan circuit is connectable to a house circuit by simple plug members and fan unit is quickly positionable into a secure position by position against and rotation of cooperable components with ceiling plate.

A universal low-power ceiling fan controller includes a brushless DC motor in a ceiling fan casing, a microprocessor connected to a power supply that operates with a remote-control device and has a transmitter and a receiver for transmitting data signals to the microprocessor by wireless transmissions, a driving device installed between the microcontroller and the motor for turning on or off a fan, and a feedback device having at least three Hall components for continuously sending feeding back a position change to the microcontroller for determining the motor speed, such that the microcontroller receives the signals of the remote-control device and the driving device drives the motor to rotate, and sample signals of the feedback device is fed back to the microcontroller to determine and conduct an automatic compensation, so as to maintain a constant speed of the vanes of the ceiling fan and lower the electric power consumption.

The invention relates generally to fans, and in particular to ceiling fans. A ceiling fan is suspended by a down rod and a motor that rotates relative to the down rod. The motor also has a connector mechanism. The fan has a fan blade with an attachment member, capable of being interconnected to the connector mechanism. A mechanism secures the attachment member to the connector mechanism.

A combination ceiling fan and track light where a support mechanism couples to the ceiling and supports the ceiling fan and the ceiling fan supplies power to the track light.

Quick attachable and detachable mounting arms for ceiling fans. A first version has flat headed fasteners initially attached to one end of mounting arms, with key-hole slots in the endshield of the ceiling fan motor. The user raises the mounting arm so that the flat headed fasteners fits through the larger openings in the keyhole slots and then pulls the mounting arm outward until the arm locks in place by the smaller opening portions of the keyhole slots. Rubber type gaskets and washers help lock and hold the mounting arms in place. The flat headed fasteners can also be located on the endshields with the keyhole slots on mounting arms. A second embodiment includes inwardly deformable springably snapable fasteners that can be located on the ends of the mounting arms which can deform inwardly and expand after passing through slots on the endshield of the rotor. Alternatively, the fasteners can be located on the bottom of the endshield with the receiving slots on the ends of the mounting arms. The different versions can include guide posts for allowing only one single fastener to be needed. A third embodiment allows the inwardly bendable snapable fasteners to be removable with screws.

A mounting system (10) for supporting a ceiling fan assembly (11) of the type having a motor, motor housing (46), a plurality of blades (47) and a downrod (29) to a ceiling C. The mounting system includes a mounting plate (14) having a plurality of tab locks (21), a mounting bracket having a plurality of locking tabs (37) configured to mate with the tab locks (21). The mounting bracket also has an opening (40) therein configured to receive a ball joint (31) of the downrod (29).

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.

The adjustable ceiling fan blade cleaner consists of a clamp that connects around the body of a ceiling fan motor via a two-member telescoping ring. Two arms project out the end of the cleaner. Each arm then has a section of cloth that hangs down and slightly drapes over the fan blade in much the same manner as a flag. Thus as the blades of the fan turn, the cloth swipes off any dust. When dirty, the cloths are simply slid off of the end, washed, and then replaced. Disposable, one-time cleaning cloths may also be used as well. The use of the attachable duster for ceiling fan allows for virtually effortless cleaning of ceiling fan blades in a manner, which is quick, easy and effective.

A ceiling fan with a light and sound generator is disclosed where the blades of the ceiling fan resemble the rotor blades of a helicopter. Under the blades of the ceiling fan a fixed or replaceable body of a helicopter is located or locatable. The blades of the helicopter may also be changeable to simulate different types of rotors for different helicopters. Control chains extend down from the body of the helicopter to resemble lanyards for repelling from the helicopter. The control chains provide control for fan speed, rotation direction, lighting, and may further include control of sounds that can be generated from the ceiling fan that may simulate commands from the pilot of a helicopter. A remote control can be provided to control the fan light and sound functions. A sensor for detecting the presence of a person in the room may also activate the sound generation.

The invention relates generally to fans, and in particular to ceiling fans. The invention further relates to a ceiling fan blade attachment mechanism.

A large industrial ceiling fan includes exceptionally long fan blades with blade tips that can be tilted upward to more broadly distribute the air. Such broad distribution might be particularly beneficial in cases where the fan is installed relatively low to avoid obstacles such as hanging lights, sprinkler heads and rafters. A low mounting position is possible, because the fan is suspended from a hanger of adjustable length. The fan includes several joints that are redundantly bolted and welded for safety. A continuous retaining ring provides additional safety. A resilient bushing enhances the flexibility of the fan blades and reduces strain where the fan blades connect to a central mounting hub. To more broadly distribute the airflow underneath the fan, each fan blade has a twisted geometry to provide an angle of attack that decreases from the root to the tip of the blade.

An adaptor kit or system for use with conventional can light fixtures to adapt the can light fixture for use as a hanger assembly for ceiling fans, for example, includes a spider plate that is hung onto the can height adjustment screws and a mounting plate to which a cross-bar or other mounting hardware is attached. Adjustment screws are adjusted to control the distance between the spider plate and the mounting plate.

A configuration including outer-rotation motor portion (4) including stator (2) with a center through which fixed axis (1) passes, and rotor (3) pivotally supported capable of rotating around stator (2); a plurality of blade plates (5) radially arranged on rotor (3); support base (6) having fixed axis (1) in a center thereof and located in a lower part of stator (2); angle changing unit (7) provided on support base (6); and a plurality of stationary blade plates (9) being detachably placed on stationary blade holders provided on angle changing unit (7). With the configuration in which an elevation / depression angle of stationary blade plates (9) is adjustable by at least one stationary blade driving motor (10) that drives angle changing unit (7), a structure is simplified.