US20070056139A1 - Vacuum cleaner having brush motor using deceleration rate - Google Patents
Vacuum cleaner having brush motor using deceleration rate Download PDFInfo
- Publication number
- US20070056139A1 US20070056139A1 US11/362,144 US36214406A US2007056139A1 US 20070056139 A1 US20070056139 A1 US 20070056139A1 US 36214406 A US36214406 A US 36214406A US 2007056139 A1 US2007056139 A1 US 2007056139A1
- Authority
- US
- United States
- Prior art keywords
- motor
- gear
- impeller
- pulley
- vacuum cleaner
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/22—Mountings for motor fan assemblies
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Abstract
A vacuum cleaner includes: a main body; a suction brush configured to draw particulates into the main body; a motor installed at the main body; and a decelerating unit configured to connect a driving shaft of the motor with an impeller to transfer a rotation force of the driving shaft to the impeller and to set the rotation speed of the driving shaft lower than that of the impeller.
Description
- This application claims the benefit of priority under 35 U.S.C. § 119 to Korean Patent Application No. 2005-84139, filed on Sep. 09, 2005, the entire contents of which are incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to a vacuum cleaner with a brush motor. More particularly, the invention relates to a vacuum cleaner with a brush motor using a deceleration rate, which can produce improved suction force by stabilizing the motor by setting the rotation speed of the impeller higher than that of the motor and rotating an impeller at a high speed.
- 2. Description of the Related Art
- In general, a vacuum cleaner uses a brush motor to generate suction force. Referring to
FIG. 1 , thebrush motor 1 generates rotation force in anarmature 4 and rotates animpeller 5 connected to a driving shaft 3 to suck dirt and air when electrical power is applied to the vacuum cleaner. - Dirt and air are collected in the vacuum cleaner by the vacuum pressure created between a suction body (not shown) of the vacuum cleaner and a surface to be cleaned. The air filtered by a filter is discharged outside the vacuum cleaner after circulating successively inside a
housing 9, namely, through theimpeller 5, adiffuser 6, acoil 7, and anexhaust hole 9 a. - The efficiency of a vacuum cleaner is generally measured by vacuum pressure, namely, the suction force generated by the
motor 1. Suction force is a very important element of a vacuum cleaner. Many vacuum cleaner manufacturers seek to improve the suction force of a vacuum cleaner. The basic method used to improve the suction force of a vacuum cleaner is to increase the rotation speed of the motor, although there are slight differences according to types of motors and structures of impellers. - As shown in
FIG. 2 , the overall vacuum pressure of a vacuum cleaner can be increased by adjusting the outer diameter D of theimpeller 5 or the height H of thedischarge unit 6 of theimpeller 5, in addition to increasing the rotation speed of themotor 1. - The efficiency difference between a conventional cleaner motor (26,000 to 33,000 RPM, outer diameter of impeller: 108 to 137 mm) and a high suction cleaner motor (35,000 to 40,000 RPM, outer diameter of impeller: 95 to 87 mm) will now be explained with reference to
FIG. 3 . M1 denotes the range in which the vacuum cleaner can deliver the maximum performance, and M2 indicates the range in which the cleaner motor can achieve the maximum performance. - As shown in
FIG. 3 , both the high suction cleaner motor and the conventional cleaner motor provide greater flux and suction force in M2 than in M1. However, the pressure loss generated by the rotatingimpeller 5 becomes greater in M2 as the flux amount increases, which lessens the effect of suction force (or vacuum efficiency) relatively more in M2 than in M1. - The suction force can be improved by reducing the pressure loss. To reduce the pressure loss, it is useful to increase the rotation speed of the
impeller 5 and at the same time decrease the flux amount Q by reducing the diameter of theimpeller 5.FIG. 3 illustrates a graph of the performance of the high suction cleaner motor that satisfies the above conditions. - As compared with the conventional cleaner motor, the high suction cleaner motor generates less pressure loss due to a decrease in the load applied to the small-
sized impeller 5. However, this causes the rotation speed of the motor to increase. - Accordingly, the
impeller 5 rotates at a higher speed than the preset speed. As theimpeller 5 continues to rotate at a high speed, commutation becomes unstable. This can cause an increase in the number of sparks generated between acommutator 2 and acarbon brush 8, and may eventually damage the motor. - The life span of the vacuum cleaner largely depends on the life span of the motor. Generally, the reduced life span of the motor leads to a shorter life span of the vacuum cleaner.
- In order to solve the problems of the high suction brush motor described above, a brush device used for a vacuum cleaner motor is replaced by an electric circuit. The motor with an electric circuit, such as a BLDC (Brushless DC) motor or a single-phase SR (Switched Reluctance) motor, provides high speed rotation and strong suction force without overburdening the motor.
- The BLDC motor or the single-phase SR motor can rotate at a high speed of 40,000 RPM or more. Since the BLDC motor or the single-phase SR motor does not have a brush, the motor is immune to damage, such as the damage caused by sparks during high speed rotation. Accordingly, the motor becomes more stable, and the life span of the vacuum cleaner can be extended.
- However, the BLDC motor or the single-phase SR motor is not used widely for vacuum cleaners due to its high price. The high price of the motor in turn leads to a high price of the vacuum cleaner, and the high price of the vacuum cleaner lowers its price competitiveness.
- Accordingly, it is an object of the present invention to provide a vacuum cleaner with a brush motor using a deceleration rate, which can produce improved suction force by rotating an impeller at a high speed and stabilizing the motor by setting the rotation speed of the impeller higher than that of the motor.
- To that end, a non-limiting aspect of the invention provides a vacuum cleaner, including: a main body; a suction brush configured to draw particulates into the main body; a motor installed at the main body; and a deceleration unit configured to connect a driving shaft of the motor with an impeller to transfer a rotation force of the driving shaft to the impeller and to set a rotation speed of the driving shaft lower than that of the impeller.
- Another non-limiting aspect provides a deceleration unit for a vacuum cleaner, including: a first gear adapted to be connected to a first end of a driving shaft of a motor; a second gear having a smaller diameter than the first gear and configured to engage the first gear; a rotation shaft configured to be connected to an impeller, wherein the second gear is adapted to be connected to a center of the rotation shaft.
- Yet another non-limiting aspect provides a deceleration unit for a vacuum cleaner, including: a first pulley; a second pulley; a driving belt configured to connect the first pulley to the second pulley to transfer a driving force from the first pulley to the second pulley; and a rotation shaft configured to be connected to the second pulley and to an impeller.
- The invention also provides a vacuum cleaner, including: at least one motor including at least one driving shaft; at least one impeller; and means for setting a rotation speed of the at least one shaft lower than a rotation speed of the at least one impeller.
- Another object of the present invention is to provide a vacuum cleaner that is competitive in terms of price by employing a low-priced brush motor that uses a deceleration rate.
- The above aspects and features of the present invention will be more apparent by describing certain embodiments of the present invention with reference to the accompanying drawings, in which:
-
FIG. 1 is a perspective view that illustrates a brush motor of a conventional vacuum cleaner. -
FIG. 2 is a side view that illustrates an impeller ofFIG. 1 . -
FIG. 3 is a graph that shows the vacuum efficiencies of a conventional cleaner motor and a high suction cleaner motor used in the conventional vacuum cleaner. -
FIG. 4 illustrates a vacuum cleaner with a brush motor using a deceleration rate in accordance with a first non-limiting embodiment of the present invention. -
FIG. 5 illustrates the brush motor of the vacuum cleaner using the deceleration rate in accordance with the first non-limiting embodiment of the present invention. -
FIG. 6 illustrates a brush motor of a vacuum cleaner using a deceleration rate in accordance with a second non-limiting embodiment of the present invention. - A brush motor of a vacuum cleaner using a deceleration rate in accordance with the first non-limiting embodiment of the present invention will now be described in detail with reference to the accompanying drawings.
FIG. 4 is a schematic perspective view of a non-limiting example of a vacuum cleaner with a brush motor using a deceleration rate in accordance with the first embodiment.FIG. 5 is a schematic cross-sectional view that illustrates a non-limiting example the brush motor of the vacuum cleaner using the deceleration rate. - According to the first embodiment of the present invention, the vacuum cleaner with the brush motor using the deceleration rate may include a cleaner
main body 20, aflexible hose 30, asuction brush 40, and amotor 50 positioned at themain body 20. - As illustrated in
FIG. 5 , the vacuum cleaner may include a deceleratingunit 60 that connects adriving shaft 53 of themotor 50 with animpeller 58 to transfer the rotation force of thedriving shaft 53 to theimpeller 58 and to set the rotation speed of thedriving shaft 53 lower than that of theimpeller 58. AlthoughFIG. 4 in this embodiment illustrates one type of vacuum cleaner, the present invention can be applied to all types of vacuum cleaners including upright vacuum cleaners and canister vacuum cleaners. - The decelerating
unit 60 may include afirst gear 61 that may be connected to one end of thedriving shaft 53, and asecond gear 63 configured to engage with thefirst gear 61 and which may have a smaller diameter than thefirst gear 61. The first andsecond gears - The diameter of the
first gear 61 may be larger than that of thesecond gear 63. This allows themotor 50 to rotate at a lower speed and theimpeller 58 to rotate at a higher speed relative to each other. The rotation speeds of themotor 50 and theimpeller 58 may be determined by the decelerating rate set between the first andsecond gears - By way of explanation, if the rotation speed of the
first gear 61 is 20,000 RPM and the decelerating rate between thefirst gear 61 and thesecond gear 63 is 0.5, thesecond gear 63 rotates at 40,000 RPM, and theimpeller 58 subsequently rotates at double the speed of the motor. Themotor 50 may rotate at a lower speed than a conventional motor, which can prevent sparks generated betweencommutator 52 c andcarbon brush 52 d. As a result, themotor 50 is less susceptible to damage caused by sparks or high temperature. Preferably, the outer diameter D and the height H of thedischarge unit 58 a ofimpeller 58 inmotor 50 are set smaller than those of the impeller used in a conventional vacuum motor (in view of high speed rotation) to reduce the load of theimpeller 58 while maintaining the rotation speed of themotor 50. - After the
motor 50 is stabilized by the deceleratingunit 60, high cleaning efficiency can be obtained from the increased vacuum pressure of the vacuum cleaner. The increased pressure may be produced by the increased rotation speed ofimpeller 58 and reduced size of theimpeller 58. - The
second gear 63 may be connected to arotation shaft 65 that passes through the center of the second gear. Theimpeller 58 may connected to one end of therotation shaft 65 with a fastener, such asnut 59. - Here, the driving
shaft 53 and therotation shaft 65 may be rotatably supported on asupport panel 55 which may be mounted insidehousing 50 a with fasteners, such as fixingbolts FIG. 5 ,bearings shaft 53 and thesupport panel 55, a well as betweenrotation shaft 65 andsupport panel 55, respectively. In addition, the other end of the drivingshaft 53 may be rotatably supported by bearing 51 a which may be installed insidehousing 50 a. - Also, an
impeller cover 54 configured to cover theimpeller 58 may have anair inflow hole 54 a to guide the air into thehousing 50 a and may be connected to the lower portion of thehousing 50 a. For reference,reference numerals - The vacuum cleaner in accordance with the first non-limiting embodiment of the present invention will now be explained in detail focusing on the operation of the motor with the decelerating unit. When power is supplied to the vacuum cleaner, as shown in
FIG. 5 , it generates rotation force in thearmature 52 a and causes the drivingshaft 53 to rotate. - At the same time, the
first gear 61 connected to the drivingshaft 53 rotates, and thesecond gear 63, engaged with thefirst gear 61, rotates around therotation shaft 65. The rotation force of the drivingshaft 53 may be transferred successively to thefirst gear 61, to thesecond gear 63, to therotation shaft 65 and finally to theimpeller 58. - Here, the diameter of the
first gear 61 may be larger than that of thesecond gear 63. This allows themotor 50 to rotate at a lower speed and theimpeller 58 to rotate at a higher speed relative to each other. The rotation speeds of themotor 50 and theimpeller 58 may be determined by the decelerating rate set between the first andsecond gears - Since the
motor 50 may rotate at a low rotation speed, it can prevent sparks from generating between thecommutator 52 c and thecarbon brush 52 d. Also, cleaning efficiency can be maximized due to increased vacuum pressure between thesuction brush 40 of the vacuum cleaner and the surface to be cleaned. This pressure may be achieved without overburdening the motor by setting the outer diameter D and the height H of thedischarge unit 58 a of theimpeller 58 in themotor 50 smaller than those of the impeller used in a conventional vacuum motor. -
FIG. 6 is a schematic cross-sectional view that illustrates a brush motor using a deceleration rate of a vacuum cleaner in accordance with a second non-limiting embodiment of the present invention. The overall configuration of themotor 150 in the second embodiment may be the same or similar to that of themotor 50 in the first non-limiting embodiment. However, in the second non-limiting embodiment adecelerating unit 160 may be used to accelerateimpeller 158. - The decelerating
unit 160 may include afirst pulley 161 that may be connected to one end of a drivingshaft 153 of themotor 150, asecond pulley 163 that may have center connected to arotation shaft 165 passing through thesecond pulley 163. The second pulley may have a smaller diameter than thefirst pulley 161. The decelerating until may further include drivingbelt 167 configured to connect the first andsecond pulleys first pulley 161 to thesecond pulley 163. - Here, the diameter of the
first pulley 161 may be larger than that of thesecond pulley 163, which causes theimpeller 158 to rotate at a higher speed as in the first embodiment. Setting the rotation speed of themotor 150 lower than that of theimpeller 158 protects themotor 150 from overworking and as a result, prevents the life span of themotor 150 from being shortened. - In the second embodiment, as in the first embodiment, the size of the
impeller 158 may be set smaller than that of the impeller of a conventional cleaner motor. This reduces the flux amount of air sucked into themotor 150 and increases overall vacuum pressure in the vacuum cleaner. - The application of the decelerating unit used in the first and second embodiments of the present invention is not restricted to a brush motor but can be applied to a BLDC motor or a single phase SR motor, as other non-limiting examples. Other motors known to hose of skill in the art are also within the scope of the present invention.
- If the deceleration structure is applied to a BLDC motor or a single phase SR motor, the life span of the motor can be extended over time, since the rotation speed of the motor may be lowered while the impeller rotates at a high speed.
- According to the present invention, the vacuum cleaner may use an economical brush motor using the deceleration rate that can stabilize the motor by lowering the rotation speed of the motor while simultaneously improving the suction force, instead of a high-priced BLDC motor or single phase SR motor. As a result, the vacuum cleaner can achieve high price competitiveness due to low manufacturing cost while having a longer life span.
- Also, an increase in the size of the vacuum cleaner with the addition of the decelerating unit can be offset by minimizing the size of the impeller. As a result, the vacuum cleaner can be built in compact size and have high commercial value.
- The foregoing embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. The present teachings can be readily applied to other types of devices. Also, the description of the embodiments of the present invention is intended to be illustrative and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art.
Claims (11)
1. A vacuum cleaner, comprising:
a main body;
a suction brush configured to draw particulates into the main body;
a motor installed at the main body; and
a deceleration unit configured to connect a driving shaft of the motor with an impeller to transfer a rotation force of the driving shaft to the impeller and to set a rotation speed of the driving shaft lower than that of the impeller.
2. The vacuum cleaner as claimed in claim 1 , wherein the deceleration unit comprises:
a first gear adapted to be connected to a first end of the driving shaft;
a second gear configured to engage the first gear and having a smaller diameter than the first gear; and
a rotation shaft adapted to have a first end connected to a center of the impeller,
wherein a center of the rotation shaft is adapted to be connected to the second gear.
3. The vacuum cleaner as claimed in claim 2 , wherein the first and second gears include at least one of a spur gear and a helical gear.
4. The vacuum cleaner as claimed in claim 1 , wherein the deceleration unit comprises:
a first pulley positioned at an outer circumference of one end of the driving shaft of the motor;
a second pulley that has a smaller diameter than the first pulley;
a driving belt that connects the first pulley with the second pulley to transfer the rotation driving force of the first pulley to the second pulley; and
a rotation shaft that has a first end connected to the center of the impeller and a center connected to the second pulley by passing through the second pulley.
5. A deceleration unit for a vacuum cleaner, comprising:
a first gear adapted to be connected to a first end of a driving shaft of a motor;
a second gear having a smaller diameter than the first gear and configured to engage the first gear;
a rotation shaft configured to be connected to an impeller,
wherein the second gear is adapted to be connected to a center of the rotation shaft.
6. The deceleration unit as claimed in claim 5 , wherein the first gear includes at least one of a spur gear and a helical gear.
7. The deceleration unit as claimed in claim 6 , wherein the second gear includes at least one of a spur gear and a helical gear.
8. The deceleration unit as claimed in claim 5 , wherein the second gear includes at least one of a spur gear and a helical gear.
9. A deceleration unit for a vacuum cleaner, comprising:
a first pulley;
a second pulley;
a driving belt configured to connect the first pulley to the second pulley to transfer a driving force from the first pulley to the second pulley; and
a rotation shaft configured to be connected to the second pulley and to an impeller.
10. The deceleration unit as claimed in claim 9 , wherein the second pulley has a smaller diameter than the first pulley.
11. A vacuum cleaner, comprising:
at least one motor including at least one driving shaft;
at least one impeller; and
means for setting a rotation speed of the at least one shaft lower than a rotation speed of the at least one impeller.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2005-84139 | 2005-09-09 | ||
KR1020050084139A KR100645380B1 (en) | 2005-09-09 | 2005-09-09 | Vacuum cleaner having brush motor using rate of deseleration |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070056139A1 true US20070056139A1 (en) | 2007-03-15 |
Family
ID=37467643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/362,144 Abandoned US20070056139A1 (en) | 2005-09-09 | 2006-02-27 | Vacuum cleaner having brush motor using deceleration rate |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070056139A1 (en) |
EP (1) | EP1762166A3 (en) |
JP (1) | JP2007077979A (en) |
KR (1) | KR100645380B1 (en) |
AU (1) | AU2006201003B2 (en) |
RU (1) | RU2006108415A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100083457A1 (en) * | 2008-10-06 | 2010-04-08 | Shop Vac Corporation | Vacuum Assembly for Automobile |
US20100253257A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Control of an electric machine |
US20100253263A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Control of an electric machine |
US20100253274A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Power tuning an electric system |
US20100251509A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | High-speed electric system |
US20100251510A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Constant-power electric system |
US20100251511A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Control of a permanent-magnet motor |
US20100251512A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Control of an electric machine |
US20140056740A1 (en) * | 2012-08-22 | 2014-02-27 | Samsung Electro-Mechanics Co., Ltd. | Switched reluctance motor assembly |
US20150020391A1 (en) * | 2013-07-22 | 2015-01-22 | Makita Corporation | Power Tool with High-Speed Electric Motor |
EP2679828A3 (en) * | 2012-06-29 | 2017-08-16 | BSH Hausgeräte GmbH | Vacuum cleaner fan and vacuum cleaner with a vacuum cleaner fan |
US9742319B2 (en) | 2009-04-04 | 2017-08-22 | Dyson Technology Limited | Current controller for an electric machine |
US9926440B2 (en) | 2013-11-21 | 2018-03-27 | Arizona Chemical Company, Llc | Additives for rubber compositions |
US9935523B2 (en) | 2014-03-18 | 2018-04-03 | Mitsubishi Electric Corporation | Mechanical device |
US20210386258A1 (en) * | 2020-03-18 | 2021-12-16 | Omachron Intellectual Property Inc. | Surface cleaning apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5817970B2 (en) * | 2011-06-15 | 2015-11-18 | 日立工機株式会社 | Dust collector |
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US20040032174A1 (en) * | 2002-08-14 | 2004-02-19 | Yeo Young Gill | Motor |
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- 2005-09-09 KR KR1020050084139A patent/KR100645380B1/en not_active IP Right Cessation
-
2006
- 2006-02-24 JP JP2006047600A patent/JP2007077979A/en not_active Withdrawn
- 2006-02-27 US US11/362,144 patent/US20070056139A1/en not_active Abandoned
- 2006-03-08 AU AU2006201003A patent/AU2006201003B2/en not_active Expired - Fee Related
- 2006-03-16 EP EP06356029A patent/EP1762166A3/en not_active Withdrawn
- 2006-03-20 RU RU2006108415/11A patent/RU2006108415A/en unknown
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US20040032174A1 (en) * | 2002-08-14 | 2004-02-19 | Yeo Young Gill | Motor |
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US20100083457A1 (en) * | 2008-10-06 | 2010-04-08 | Shop Vac Corporation | Vacuum Assembly for Automobile |
US10618502B2 (en) | 2008-10-06 | 2020-04-14 | Shop Vac Corporation | Vacuum assembly for automobile |
US8615845B2 (en) * | 2008-10-06 | 2013-12-31 | Shop Vac Corporation | Vacuum assembly for automobile |
US20100251511A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Control of a permanent-magnet motor |
US8710778B2 (en) | 2009-04-04 | 2014-04-29 | Dyson Technology Limited | Control of an electric machine |
US20100251510A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Constant-power electric system |
US20100253274A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Power tuning an electric system |
US20100251512A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Control of an electric machine |
US8432114B2 (en) * | 2009-04-04 | 2013-04-30 | Dyson Technology Limited | High-speed electric system |
US8474095B2 (en) | 2009-04-04 | 2013-07-02 | Dyson Tehcnology Limited | Constant-power electric system |
US8561253B2 (en) | 2009-04-04 | 2013-10-22 | Dyson Technology Limited | Control of an electric machine |
US8604729B2 (en) | 2009-04-04 | 2013-12-10 | Dyson Technology Limited | Control of a permanent-magnet motor |
US20100253263A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Control of an electric machine |
US20100253257A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | Control of an electric machine |
US20100251509A1 (en) * | 2009-04-04 | 2010-10-07 | Dyson Technology Limited | High-speed electric system |
US8736200B2 (en) | 2009-04-04 | 2014-05-27 | Dyson Technology Limited | Power tuning an electric system |
US9742318B2 (en) | 2009-04-04 | 2017-08-22 | Dyson Technology Limited | Control of an electric machine |
US9742319B2 (en) | 2009-04-04 | 2017-08-22 | Dyson Technology Limited | Current controller for an electric machine |
EP2679828A3 (en) * | 2012-06-29 | 2017-08-16 | BSH Hausgeräte GmbH | Vacuum cleaner fan and vacuum cleaner with a vacuum cleaner fan |
US20140056740A1 (en) * | 2012-08-22 | 2014-02-27 | Samsung Electro-Mechanics Co., Ltd. | Switched reluctance motor assembly |
US9364906B2 (en) * | 2013-07-22 | 2016-06-14 | Makita Corporation | Power tool with high-speed electric motor |
US20150020391A1 (en) * | 2013-07-22 | 2015-01-22 | Makita Corporation | Power Tool with High-Speed Electric Motor |
US9926440B2 (en) | 2013-11-21 | 2018-03-27 | Arizona Chemical Company, Llc | Additives for rubber compositions |
US9935523B2 (en) | 2014-03-18 | 2018-04-03 | Mitsubishi Electric Corporation | Mechanical device |
US20210386258A1 (en) * | 2020-03-18 | 2021-12-16 | Omachron Intellectual Property Inc. | Surface cleaning apparatus |
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Publication number | Publication date |
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EP1762166A2 (en) | 2007-03-14 |
AU2006201003B2 (en) | 2007-11-15 |
RU2006108415A (en) | 2007-10-20 |
EP1762166A3 (en) | 2008-01-02 |
KR100645380B1 (en) | 2006-11-14 |
JP2007077979A (en) | 2007-03-29 |
AU2006201003A1 (en) | 2007-03-29 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: SAMSUNG GWANGJU ELECTRONICS CO., LTD., KOREA, REPU Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, MYUNG-WON;YOU, JAE-SUN;REEL/FRAME:017627/0623 Effective date: 20060220 |
|
STCB | Information on status: application discontinuation |
Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION |