| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 015412000 | Motor features, e.g., housing or casing assemblies | 42 |
| 20090056068 | UPRIGHT VACUUM CLEANER - An upright vacuum cleaner for cleaning a surface. The vacuum cleaner includes an upper body having a dust collection container, a base unit having a suction mouth and a carriage for moving the base unit on the surface. A motor-fan unit is included and is disposed outside the upper body. The motor-fan unit is operable to create a partial vacuum on the surface. A combined coaxial conduit is disposed in a transition region to the upper body. The combined coaxial conduit includes a first air conduit from the suction mouth to the upper body and a second air conduit from the upper body to the motor-fan unit. | 03-05-2009 |
| 20090094788 | SURFACE CLEANING IMPLEMENENT WITH MAGNETIC COUPLED FAN - A surface cleaning implement has a suction nozzle, a fan in fluid communication with the suction nozzle, a suction-driven turbine motor for driving the fan and a magnetic coupling between the fan and the motor. The surface cleaning implement can be in the form of an accessory tool that has a housing with a suction opening adapted to be connected to a vacuum hose and mounting the suction nozzle, the fan and the motor and the housing mounts a recovery tank that is in fluid communication with the suction nozzle. The accessory tool can further comprise a fluid dispensing assembly for storing and distributing fluid to the surface to the cleaned. The fluid dispensing assembly can comprise a turbine-driven fluid pump. | 04-16-2009 |
| 20090249580 | Belt Lifter Mechanism for Floor Cleaning Appliance - A drive belt shifting arrangement for a rotatable brush roller of an upright cleaner where the shifter has an idler pulley for arcuate movement within the loop of the belt between the roller and the motor occasioned by pedal actuation. The same pedal action by the user alternately cams the belt onto the idler pulley to discontinue roller rotation or to permit its movement back to the motor shaft to allow roller rotation. | 10-08-2009 |
| 20090255084 | Removable Battery Pack with Latching Mechanism - A latching assembly for a removable battery package to an electrically powered cleaning device is provided along with the electrically powered cleaning device and the electrical combination with the battery charger. The latching assembly on the battery package comprises at least one moveable first engagement member, in movable cooperation with at least one rod which is in movable cooperation with a user contact. The first engagement member secures the removable battery package with another engagement member associated at least with the cleaning device. The first engagement member is located toward a side of a long end of the battery package opposite the end with the user contact Moving the user contact moves the member through the rod between an engaged position to thereby secure the battery package to the cleaning device and an unengaged position for removal of the battery package from the cleaning device. | 10-15-2009 |
| 20090313785 | VACUUM CLEANER WITH ADDITIONAL FUNCTIONS - Vacuum cleaner including a container ( | 12-24-2009 |
| 20100083461 | System and Method of Controlling Current Draw of a Switched Reluctance Motor - Disclosed is a system and method for controlling current in a switched reluctance motor by changing a dwell state including starting the motor in a normal mode, measuring current in the motor, comparing the measured current to a first threshold, triggering an interrupt if the measured current exceeds the first threshold, keeping a count of consecutive readings exceeding the first threshold, changing the dwell state from a first state to a second state if the measured current exceeds the first threshold and the count equals a set value, changing the dwell state from a second state to a third state if the measured current exceeds a second threshold, and triggering a fault condition if the measured current in the third state exceeds a third threshold. | 04-08-2010 |
| 20100083462 | System and Method of Controlling Start-Up of a Switched Reluctance Motor - Embodiments of a switched reluctance (SR) motor for use in a integrated vacuum system for a vehicle are disclosed. The SR motor may receive input voltage directly from an electrical storage device used to start up an engine of the vehicle. The SR motor may include an encoder that triggers an optical sensor to provide signals to a motor controller. The motor controller may energize stator poles based on the received signals. The encoder may be mechanically phase-advanced with respect to poles of the rotor to ensure proper start-up of the SR motor. Commutations of the motor may occur before a point of maximum inductance where the rotor and stator are aligned. In a preferred embodiment, the input voltage received by the SR motor is in a range of 9-16 Volts DC, a maximum drawn current is 36 amps, and the phase advance is between 9-11 degrees. | 04-08-2010 |
| 20100186190 | SWITCH AND MOTOR ASSEMBLY - A cleaning appliance includes a motor arranged to drive a fan for generating suction air flow and a cleaner head having a drivable agitator with a dedicated motor. The agitator drive motor has a selectively-operable switch and a resettable circuit breaker arranged such that, when the switch is activated, the circuit breaker is reset. A button actuates the switch and simultaneously resets the circuit breaker. When there is a blockage so that the circuit breaker trips out the motor, the user can reset the circuit breaker and restart the agitator motor by the simple act of depressing one button, thereby obviating the need for a separate control. | 07-29-2010 |
| 20100218341 | ELECTRIC VACUUM CLEANER - The present invention provides an electric vacuum cleaner which can reliably absorb vibration accompanying driving of an electric blowing part. | 09-02-2010 |
| 20100229335 | CONFIGURATION OF A MOTOR HOUSING FOR A SURFACE CLEANING APPARATUS - A surface cleaning apparatus comprises a suction motor and fan housing wherein at least a portion of the suction motor and fan housing forms part of an outer casing of the surface cleaning apparatus and a portion of the housing is recessed inwardly. | 09-16-2010 |
| 20100236018 | CLEANING APPLIANCE HAVING MULTIPLE FUNCTIONS - A cleaning appliance is capable of performing two or more cleaning functions. The cleaning appliance may include a vacuum cleaner and a steam cleaner such that a user can vacuum a floor prior to steam cleaning the floor. Various manual switching arrangements may be used as part of controlling the cleaning appliance. | 09-23-2010 |
| 20100251509 | HIGH-SPEED ELECTRIC SYSTEM - An electric system that includes a single-phase permanent-magnet electric machine and a control system for driving the electric machine under load at speeds in excess of 60 krpm. Additionally, a product that includes the electric system. | 10-07-2010 |
| 20100251510 | CONSTANT-POWER ELECTRIC SYSTEM - An electric system that includes a single-phase permanent-magnet electric machine and a control system for driving the electric machine. The control system sequentially excites and freewheels a winding of the electric machine so as maintain substantially constant power over an operating speed range spanning at least 10 krpm and/or an excitation voltage range extending between a minimum voltage and a maximum voltage, the minimum voltage being less than 80% of the maximum voltage. Additionally, a product comprising the electric system. | 10-07-2010 |
| 20100251511 | CONTROL OF A PERMANENT-MAGNET MOTOR - A method of controlling a permanent-magnet motor that includes sequentially exciting and freewheeling a winding of the motor. The method includes varying the angle over which the winding is freewheeled in response to changes in speed of the motor. Additionally, a control system for a permanent-magnet motor, and a product incorporating the control system and motor. | 10-07-2010 |
| 20100251512 | CONTROL OF AN ELECTRIC MACHINE - A method of controlling an electric machine that includes exciting a winding of the electric machine in synchrony with zero-crossings of back emf when operating over a first speed range. The method then includes exciting the winding in advance of the zero-crossings by a fixed period of time when operating over a second speed range, and exciting the winding in advance of the zero-crossings by a period of time that varies with speed when operating over a third speed range. Additionally, a control system for an electric machine, and a product incorporating the control system and electric machine. | 10-07-2010 |
| 20110113591 | CLEANING IMPLEMENT HAVING AUDIBLE CONSUMER SIGNAL - A battery-powered cleaning implement for cleaning a target surface by using at least one of a motor-driven beater bar or motor-driven vacuum fan. The cleaning implement has a cutoff voltage below which the beater bar and/or said fan is/are no longer operable to clean. The cleaning implement has a control which reduces voltage provided by the battery/ies to the motor before the cutoff voltage is reached. The reduction in voltage provided to the beater bar and/or fan vacuum reduces the rotational velocity, providing an audible signal to a user that said voltage provided to said motor is being depleted. | 05-19-2011 |
| 20110119863 | UPRIGHT TYPE VACUUM CLEANER - An upright type vacuum cleaner is disclosed. An object of the present invention is to provide an upright type vacuum cleaner having a movement direction changed smoothly and quickly as necessary during the movement. The upright type vacuum cleaner includes a body, a wheel member provided in the body, the wheel member including a main rotation member rotatably provided in the body, and an auxiliary rotation member rotatably provided in the main rotation member to be rotated in a predetermined rotational direction different from a rotational direction of the main rotation member. | 05-26-2011 |
| 20110219582 | INTEGRATED BAG DOOR AND CARRY HANDLE FOR A FLOOR CLEANER - A floor cleaner including a nozzle and a handle assembly pivotably mounted to the nozzle. The handle assembly including a handle, a motor housing supporting a suction source in fluid communication with the nozzle, and a bag housing. A door is removably coupled to the bag housing and includes a door handle and a filter bag retaining structure. | 09-15-2011 |
| 20110232026 | Removable Circuit Board Assembly for a Vacuum - A vacuum assembly having a housing and a motor and motor shaft secured within the housing; a fan coupled to the motor shaft and an air intake port and an air exhaust port located within the housing; a circuit board mounted in a cooling air path in the housing, wherein the cooling air path is located between the air intake port and the air exhaust port such that the fan causes cool air to flow across the circuit board; a pulley assembly coupled to the motor shaft and including a disposable belt, the pulley assembly located in the housing in such position that the circuit board blocks access to the disposable belt; a first connector portion secured to the circuit board; a second connector portion coupled to a plurality of wires coupled to at least the motor; the first and second connector portions configured to mate in a single direction. | 09-29-2011 |
| 20110265284 | METHOD AND SYSTEM OF DETECTING A BLOCKAGE IN A VACUUM CLEANER - A vacuum cleaner with a blockage sensor and methods of identifying an obstructed airway in a vacuum are described. The vacuum cleaner has a motor and a circuit board to provide electrical current to the motor including an amperage flow sensor to determine the electrical current draw of the motor, and a blockage determiner to sample the electrical current draw and count the number of times the sampled electrical current draw exceeds a threshold amperage within a window of time. The blockage determiner can sense a blockage within the airflow path or the beater bar, and can optionally shut down the motor prior to motor failure. | 11-03-2011 |
| 20110265285 | UPRIGHT VACUUM WITH REDUCED NOISE - According to various embodiments, a method of reducing noise generated by a vacuum is described. The method comprises providing a vacuum comprising a motor including a motor shaft adapted to operate at a rotational speed of n; attaching a centripetal fan with t number of blades attached to the motor shaft; enclosing the fan between the motor and a motor housing end bracket disposed about the shaft, the motor housing end bracket defining an air input opposite an air output; wherein the variables of speed n and the number of blades t are selected so that a blade pass frequency (BPF) of the centripetal fan is greater than about 5000 Hertz, and the BPF is calculated as BPF=n*t/60. A vacuum implementing the method is also described. | 11-03-2011 |
| 20110277272 | Vacuum Cleaner - The present invention relates to a vacuum cleaner having a motor housing provided with an inlet and an outlet, a motor and suction fan unit, which is arranged in the motor housing and which is arranged to create a suction flow in through the inlet of the housing, through the motor and suction fan unit and out through the outlet of the motor housing. The vacuum cleaner further comprise holding means for holding the motor and suction fan unit at the motor housing and sealing means arranged to guide the suction flow from the inlet of the motor housing and into the motor and suction fan unit in a sealingly manner. The holding means is arranged to prevent propagation of vibrations originated in the motor and suction fan unit from the motor housing by the holding means responding resiliently to forces from the motor and suction fan unit, and the holding means carries the motor and suction fan unit at the housing. The sealing means is arranged to prevent propagation of vibrations originated in the motor and suction fan unit from the motor housing by yielding to forces from the motor and suction fan unit. | 11-17-2011 |
| 20110289725 | VACUUM CLEANER - The embodiments disclose a vacuum cleaner. The vacuum cleaner includes a suction nozzle capable to adjusting the height with regard to the bottom surface. | 12-01-2011 |
| 20120000032 | VACUUM CLEANER - A vacuum cleaner ( | 01-05-2012 |
| 20120017391 | FLOOR-TYPE VACUUM CLEANER HAVING A HOUSING WHICH IS DISPLACEABLE ON ROLLERS - A floor-type vacuum cleaner includes a housing and rollers attached to the housing that are configured to provide movement of the housing. Each roller is disposed on a roller axle so as to be rotatable. At least one of the rollers includes a rigid hub and an air-filled, rubber, resilient, damping tire. Alternatively, at least one of the rollers has a damping property and includes alternating concentric layers of rigid and flexible components, with air being disposed between at least one of the rigid components and at least one of the flexible components. | 01-26-2012 |
| 20120017392 | UPRIGHT TYPE VACUUM CLEANER - An upright type vacuum cleaner is disclosed. An object of the present invention is to provide an upright type vacuum cleaner having a movement direction changed smoothly and quickly as necessary during the movement. The upright type vacuum cleaner includes a body, a wheel member provided in the body, the wheel member including a main rotation member rotatably provided in the body, and an auxiliary rotation member rotatbly provided in the main rotation member to be rotated in a predetermined rotational direction different from a rotational direction of the main rotation member. | 01-26-2012 |
| 20120222262 | CYCLONE CHAMBER AND DIRT COLLECTION ASSEMBLY FOR A SURFACE CLEANING APPARATUS - A cyclone bin assembly comprises a cyclone chamber having an air inlet, an air outlet, a dirt outlet and first and second opposed ends. The cyclone bin assembly may comprise a dirt collection chamber in communication with the dirt outlet. The dirt bin may surround at least a portion of the cyclone chamber and comprising first and second portions. The first and second portions may comprise discrete chambers that are separated from each other by a passage extending between the dirt outlet and a wall of the dirt collection chamber. A portion of the wall facing the dirt outlet may extend inwardly towards the dirt outlet. | 09-06-2012 |
| 20120222263 | SUCTION MOTOR AND FAN ASSEMBLY HOUSING CONSTRUCTION FOR A SURFACE CLEANING APPARATUS - A surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet, an air treatment member and a suction motor. The surface cleaning apparatus comprises a main body comprising a front end and a rear end, first and second opposed sidewalls and a suction motor housing. At least one of the first and second opposed sidewalls may have a suction motor access opening. | 09-06-2012 |
| 20120222264 | SOUND SHIELD FOR A SURFACE CLEANING APPARATUS - A surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet and includes an air treatment member. A suction motor may be provided in the air flow path. A suction motor housing sidewall may comprise a plurality of openings provided in a first side thereof. An outer housing may comprise a longitudinally extending outer housing sidewall having an outer housing air outlet. At least a portion of the suction motor housing that has the plurality of openings is located in the outer housing and spaced from the longitudinally extending outer housing sidewall to define a passage between the outer housing and the suction motor housing. The outer housing air outlet may be angularly spaced around the outer housing with respect to the first side of the suction motor housing. | 09-06-2012 |
| 20130067682 | ROTARY CLEANING BODY UNIT, SUCTION PORT BODY AND ELECTRIC VACUUM CLEANER - In the embodiment of the present invention, a rotary cleaning body unit which is provided with a rotary cleaning body using a turbine as a driving motor and can drive the rotary cleaning body with a high torque without lowering suction power of an electric vacuum cleaner, a suction port body, and an electric vacuum cleaner are proposed. The rotary cleaning body unit comprising: a turbine | 03-21-2013 |
| 20130086770 | VACUUM CLEANER WITH REMOVABLE BATTERY PACK - A battery powered vacuum cleaner is disclosed. The vacuum cleaner comprises a motor, a battery pack comprising a plurality of battery cells arranged in a generally horseshoe configuration and wrapped about the motor, and a battery door providing access to the battery pack and adapted to permit removal of the battery pack from the vacuum cleaner. | 04-11-2013 |
| 20130125339 | ELECTRIC BLOWER AND VACUUM CLEANER COMPRISING SAME - Disclosed is an electric blower having a stator, a rotor, a bracket, a rotary fan, an air guide and a fan case. The air guide comprises a partition plate, a diffuser disposed around outer periphery of the rotary fan in the air guide, a partition-plate sloped portion and a guide vane. The fan case has a fan-facing portion, a fan case shoulder bent at the outermost part of the fan-facing portion, and a cylindrical portion extending cylindrically in an axial direction from the fan case shoulder. The fan case shoulder is so bent that it forms substantially a right angle. | 05-23-2013 |
| 20130133156 | ELECTRIC BLOWER AND ELECTRIC CLEANER WITH SAME - An electric blower includes a stator, a rotor, a bracket, rotary fan, air guide, a fan case covering air guide and rotary fan. Air guide includes a partition plate, a diffuser, a partition slope, and a guide vane. Diffuser vanes configure closed passages. Passage lengths of closed passages include a first passage length and a second passage length that is different from the first passage length. | 05-30-2013 |
| 20140013539 | Intelligent Vacuum Cleaner - An intelligent vacuum cleaner includes a main casing, a vacuum cleaning arrangement, and at least one detachable wheel assembly arrangement. The main casing has a plurality of wheel compartments formed at a bottom side of the main casing. The vacuum cleaning arrangement is operatively provided in the main casing for generating a predetermined vacuum effect. The detachable wheel assembly arrangement is provided on the bottom side of the main casing, and includes at least one driving wheel and a detachable mechanism which is connected to the driving wheel and is detachably mounted in the main casing so that the diving wheel and the detachable mechanism are selectively detachable from the main casing for convenient cleaning of the bottom side of the main casing. | 01-16-2014 |
| 20140013540 | CLEANING APPARATUS - Embodiments of the invention provide a cleaning apparatus, such as a battery-powered vacuum cleaner, that has a body and a cleaning wand. The apparatus operates in a multiple power mode, uses a wireless system to allow an operator interface to be provided on the cleaning wand and/or uses a motion detector on the cleaning wand to operate the cleaning apparatus in an intelligent manner. In cases where the cleaning apparatus is a battery-powered apparatus, the use of a multiple power mode, wireless system and/or a motion detector helps to extend the life of a battery. | 01-16-2014 |
| 20140068891 | POWER FACTOR CORRECTION CIRCUIT, POWER SUPPLY DEVICE AND VACUUM CLEANER USING THE SAME - A power factor correction circuit, a power supply device and a vacuum cleaner using the same. The power supply device for a vacuum cleaner is applicable to a vacuum cleaner having a flexible hose. The power supply device for a vacuum cleaner includes: A power factor correction unit correcting a power factor of an AC voltage supplied from an AC power source; a rectifying unit rectifying the AC voltage power factor-corrected by the power factor correction unit into a direct current (DC) voltage and outputting the DC voltage; a smoothing unit smoothing the DC voltage output from the rectifying unit and outputting the smoothed the DC voltage; an a converting unit converting the smoothed DC voltage from the smoothing unit into an AC voltage, wherein the power factor correction unit uses a conductive line included in the flexible hose, as an inductor. | 03-13-2014 |
| 20140230184 | VACUUM CLEANER - A vacuum cleaner comprising an electric motor, an impeller and an axial diffuser arranged on a common axis is provided. The impeller is connected to the electric motor and is arranged for rotation on the common axis to achieve a radial air flow. The radial air flow is redirected into an axial air flow. The diffuser passages are arranged between an inner circumferential wall and an outer circumferential wall, wherein the walls are coaxially arranged around the common axis. Each diffuser passage is delimited in a circumferential direction between the walls by vanes extending between the inner wall and the outer wall and in an axial direction extending substantially in parallel with the common axis. The vanes are arranged in at least two rows being consecutively arranged in the axial direction extending substantially in parallel with the common axis. | 08-21-2014 |
| 20140359969 | MOTOR APPARATUS AND CLEANER HAVING THE SAME - A motor apparatus having a high efficiency and reducing manufacturing cost by using a cost effective ferrite permanent magnet includes a rotatable shaft, a fan connected to one side of the shaft to generate a flow of air, a stator including stator cores arranged in a circumferential direction, and a coil wound around the stator core, and a rotor disposed at an inside of the stator and provided in a form of a cylinder having a passage allowing the shaft to pass through the rotor includes a rotor core provided with a protrusion structure and one or more ferrite magnets coupled to the rotor core to provide a magnetic force. By using a ferrite magnet, when compared to a conventional universal motor, a superior efficiency is obtained, and when compared to a BLDC motor using a Nd magnet, a low cost BLDC motor is implemented. | 12-11-2014 |
| 20150320283 | VACUUM CLEANER - Provided is a vacuum cleaner. The vacuum cleaner includes a cleaner body including a suction motor for generating a suction force, a suction part communicating with the cleaner body to suction air and dusts, and a battery assembly disposed on the cleaner body or the suction part to supply a power to the suction motor. The battery assembly includes a plurality of battery cells and a support device supporting the plurality of battery cells so that the plurality of battery cells are spaced apart from each other. | 11-12-2015 |
| 20160374525 | BATTERY-POWERED CORDLESS CLEANING SYSTEM - A cleaning system including a motor, a battery receptacle, and a motor controller. The battery receptacle is configured to receive a battery pack. The battery pack includes one or more battery cells and a battery controller. The motor controller is configured to receive from the battery controller at least one selected from the group consisting of a first signal indicative of a first characteristic of the battery pack and a second signal indicative of a second characteristic of the battery pack. The motor controller is further configured to operate the motor at a defined speed, the defined speed being a first speed upon receiving the first signal and a second speed upon receiving the second signal. Wherein the first characteristic and the second characteristic are at least one selected from the group consisting of a capacity, a current, and a resistance. | 12-29-2016 |
| 20180026486 | BLDC MOTOR AND CLEANER HAVING THE SAME | 01-25-2018 |
| 015413000 | Air cooling by other than main air stream | 1 |
| 20130007984 | Vacuum Cleaner with Recirculated Cooling Air - A vacuum cleaner comprising a receptacle having a working air inlet and an associated filter, the filter in communication with and downstream from the working air inlet, is disclosed. The vacuum cleaner further includes a housing containing a motor and having a cooling air outlet from the motor and a working air outlet, the working air outlet in communication with the working air inlet of the receptacle through a working air impeller, wherein the cooling air is directed to the receptacle, and the cooling air passes through the filter before exiting the working air outlet of the housing. | 01-10-2013 |
