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| Number | Title | Issue Date |
| 7651325 | Vacuum cleaner fan In a vacuum cleaner blower (1) consisting of an electric drive motor (2) and a support cage (10) for receiving the structural modules of the drive motor such as stator pack (6), rotor (7) and brush holders (8) including carb... | 01/26/2010 |
| 7481630 | Hand held vacuum cleaner and housing for such a cleaner A housing for a hand held vacuum cleaner is so constructed that a suction motor mounting bracket which is enclosed by a lower housing section, is removably secured to an upper housing section. A suction coupling pipe section is either an integral part of or directly... | 01/27/2009 |
| 7418763 | Hand vacuum with filter indicator A hand-held portable vacuum having a filter indicator that is coupled to an outlet housing and in fluid communication with a portion of the outlet housing between a fan inlet and an intake. The filter indicator includes a pressure differential indicator that is conf... | 09/02/2008 |
| 7416384 | Electric blower and vacuum cleaner using same An electric blower includes an electric motor including a stator and a rotor. The impeller is rotated by the electric motor. An air guide having a plurality of guide blades is disposed around the impeller, and a casing encloses the impeller and the air guide. The ca... | 08/26/2008 |
| 7287301 | Utility vacuum A utility vacuum that may be configured to employ a disposable bag or removable and reusable container for the collection of dirt and debris that are drawn into the utility vacuum. The utility vacuum may employ one or more movable legs that are movable between an ex... | 10/30/2007 |
| 7223070 | Blower motor A blower motor for a vacuum cleaner or the like has an impeller/rotor assembly which is dynamically balanced. Air guide vanes are disposed between the diffuser plate and fan cover and surround the impeller periphery. A fan cover 13 accommodates the impeller | 05/29/2007 |
| 7104768 | Peristaltic micropump A Peristaltic micropump includes a first membrane region with a first piezo-actor for actuating the first membrane region, a second membrane region with a second piezo-actor for actuating a second membrane region, and a third membrane region with a third piezo-actor... | 09/12/2006 |
| 7067772 | Candle warming apparatus Disclosed is a hot plate warming apparatus adapted to warm a candle or other object resting thereon, as well as to provide illumination that simulates the effects of a lighted burning candle. The apparatus may include an adjustable cord apparatus, a light source, an... | 06/27/2006 |
| 7022167 | Desiccant dehumidifier hose connector A raised ring encircling a duct at an output port of a desiccant dehumidifier housing prevents its flexible hose from blowing off the duct even when clamped, as dried air blowing pressures through the duct increase. ... | 04/04/2006 |
| 6955530 | Fan motor bracket and baffle assembly A fan/motor assembly having an integrated brush support and bearing retainer is disclosed. The fan/motor assembly includes a rotatable shaft, a working air fan coupled to the shaft, and a motor bracket and baffle assembly interposed between the working air fan and t... | 10/18/2005 |
| 6951449 | Heat-dissipating device A heat-dissipating device is provided for generating primary airflow to dissipate heat generated by external heat sources as well as secondary airflow to dissipate heat generated from the interior of the heat-dissipating device. The heat-dissipating device includes ... | 10/04/2005 |
| 6920867 | Air intake arrangement for an internal combustion engine An air intake apparatus for supplying air to an internal combustion engine comprises a hollow plastics material enclosure, an air filter and an air compressor which when activated compresses air supplied to the engine. The enclosure houses the air filter and compres... | 07/26/2005 |
| 6843644 | Mounting structure of blower for vacuum cleaner Disclosed is a mounting structure of a blower for a vacuum cleaner comprising a mounting cover for fixing the blower to a body base so that the blower is structurally separated from a body cover. The mounting cover is put on the upper surface of the blower disposed ... | 01/18/2005 |
| 6786706 | Fan in which motor yoke is mounted on a motor shaft by caulking or spot welding A fan in which, on one end of the motor shaft 6 a stepped portion 19 having a small diameter is formed, on which a central portion of the motor yoke 11 is press-fitted and fixed by caulking, thereby the motor yoke is mounted directly on the shaf... | 09/07/2004 |
| 6736615 | Brush and bearing holder for a fan/motor A fan/motor assembly having an integrated brush support and bearing retainer is disclosed. The fan/motor assembly includes a rotatable shaft, a working air fan coupled to the shaft, and a motor bracket and baffle assembly interposed between the working air fan and t... | 05/18/2004 |
| 6508618 | Pump having dynamic shaft seal A pump has a housing defining a pump chamber and having a shaft opening. An impeller shaft extends through the shaft opening and is sized to define a gap between the impeller shaft and the shaft opening. An impeller is attached to the shaft inside the pum... | 01/21/2003 |
| 6378164 | Pump inlet fitting A pump inlet fitting for a wet/dry vacuum cleaner is disclosed. The pump inlet fitting frictionally attaches a pump inlet assembly to an inner surface of an intake tube of a wet/dry vacuum cleaner. The pump inlet fitting includes a plurality of radially e... | 04/30/2002 |
| 6368066 | Vacuum apparatus and fan casing with wear indicator A vacuum apparatus has a recessed portion which is provided at an appropriate position of a fan casing. When incoming materials frequently pass through the fan casing, the recessed portion wears more quickly than the rest of the inner surface of the fan c... | 04/09/2002 |
| 6264427 | Vaneless impeller housing for a vacuum cleaner A vacuum cleaner includes a driven impeller that moves working air for the vacuum cleaner. A first housing includes a first wall and a second housing includes a second wall opposite the first wall, and an outlet for the working air. The impeller rotates a... | 07/24/2001 |
| 6249933 | Pump having sealless shaft A pump has a housing defining a pump chamber and having a shaft opening. An impeller shaft extends through the shaft opening and is sized to define a gap between the impeller shaft and the shaft opening. An impeller is attached to the shaft inside the pum... | 06/26/2001 |
| 6232696 | Vacuum generating apparatus with multiple rotors A vacuum generating apparatus for a vacuum cleaner is provided, in which an axial type coreless brushless direct-current (DC) motor is implemented in the form of a rotor-impeller integration structure. The vacuum generating apparatus includes an axial typ... | 05/15/2001 |
| 6166462 | Bypass motor/fan assembly having separate working air passages A bypass motor/fan assembly for use in applications where moisture laden air is encountered. A motor with a motor cooling fan has a fan end bracket received at one end thereof to isolate the motor and motor cooling fan from a working air fan received on t... | 12/26/2000 |
| 6126417 | Conveying device for liquid and gaseous media, such as vacuum cleaners, pumps etc. A conveying device for liquid and gaseous media has a drive unit with a drive shaft. At least one rotating component is connected to the drive shaft. At least one stationary component is coordinated with the at least one rotating component. A separating m... | 10/03/2000 |
| 6122799 | Vacuum cleaner with three stage air induction system A vacuum cleaner includes a housing, a nozzle for picking up dirt and debris, and a vacuum generator. The vacuum generator includes a motor and drive shaft, a first fan connected to the drive shaft, a shield including a recess that functions as an air ind... | 09/26/2000 |
| 6098245 | Vacuum cleaner motor assembly A motor assembly for use in a vacuum cleaner utilizes a clam-shell type housing having a plurality of shell components that cooperate with each other to define a fan cavity and a motor cavity adjacent to the fan cavity. The housing has a fan cavity inlet ... | 08/08/2000 |
| 5994808 | Field replaceable motor oil filter for a submergible motor A submergible motor having a universal motor base facilitates replacement of an internal filter while in the field. The submergible motor is designed for use in production wells and includes a generally tubular housing with a shaft lying generally along t... | 11/30/1999 |
| 5938410 | Dust sucking/blowing device A dust sucking/blowing device including a housing including a fan chamber for receiving a fan therein, a dust collecting sleeve fitted around the fan chamber and formed with a first and a second inlets communicating with a dust collecting room which is fo... | 08/17/1999 |
| 5811899 | Small electric motor with airflow guide structure A motor and fan apparatus a centrifugal fan including a generally circular impeller having a plurality of generally radial vanes. The apparatus also includes a common shaft on which the impeller and the rotor are mounted in axially spaced relation. A circ... | 09/22/1998 |
| 5622485 | High performance efficiency dirty air motor/fan system A high-performance, high efficiency dirty air motor/fan assembly for vacuum cleaners has a fan housing which includes an end bracket. The end bracket has a volute expansion chamber. A shroud/baffle unit mounts to the end bracket and serves to separate the... | 04/22/1997 |
| 5573369 | Impeller for vacuum cleaner with tapered blades A fan for a vacuum cleaner has a fan housing, a motor and an impeller. The fan housing has an inlet, an outlet, a scroll-shaped side wall, a back wall and a flat front wall. The impeller has a hub and multiple blades. The blades have a leading edge that i... | 11/12/1996 |
| 5454690 | Air flow housing A housing for directing air propelled by an impeller through an object such as a motor has several arcuate vanes which direct the air radially inward towards ports associated with each vane. The vanes of the housing are placed non-symmetrically about the ... | 10/03/1995 |
| 5404614 | Latch assembly for blower of wet/dry vacuum cleaner A quick attach-detach assembly of a wet-dry vacuum cleaner for selectively mounting an air blower on a lid includes a blower housing supporting a motor and a fan mounted to the motor and a lid to which the housing can be removably secured. The lid include... | 04/11/1995 |
| 5375651 | Draft inducer blower motor mounting and cooling construction A draft inducer blower motor mounting and cooling construction comprising an electric motor including a housing having openings therein and a rotor mounted on a shaft, a fan blade fixed on the shaft and interposed between the motor and the draft inducer b... | 12/27/1994 |
| 5334000 | Housing arrangement for compact blower and vacuum A powered line fishing device, which can also be used as a vacuum or a blower. The device includes a thin-walled container having a bottom, side walls and a mouth. A top plate is positioned over the mouth and an intermediate plate is positioned in the thi... | 08/02/1994 |
| 5297942 | Porous rotor A quiet fluid passing apparatus comprising a fluid passing rotor comprising open porous structure extending along an annular path, the rotor forming passage means to pass fluid through the rotor open porous structure as the rotor rotates; said path having... | 03/29/1994 |
| 5296769 | Air guide assembly for an electric motor and methods of making An air guide and motor housing assembly for use in domestic and commercial vacuum cleaners is described wherein the assembly comprises an air guide having a center detail for engaging the motor housing to facilitate assembly of the components, and reduce ... | 03/22/1994 |
| 5110266 | Electric blower having improved return passage for discharged air flow An electric blower has an electric motor, a centrifugal impeller rotating by the driving of the electric motor, an end bracket for separating the electric motor from the centrifugal impeller, and a diffuser. The diffuser includes a plurality of diffuser v... | 05/05/1992 |
| 5022829 | Vacuum apparatus The present invention provides an apparatus having a high vacuum environment and a plurality of components located within the high vacuum environment so as to be exposed to high vacuum. At least one of the plurality of components is formed from a plastic ... | 06/11/1991 |
| 4995794 | Vacuum pumps A vacuum pump comprising a pumping chamber having an inlet and an outlet through which gas from an enclosure connectible to the inlet can be pumped, in which means are provided to allow the selective introduction through the chamber of a flow of recircula... | 02/26/1991 |
| 4836753 | Portable electric blower The invention concerns an air blower including a centrifugal fan which is driven by an electric motor. The blower has a two-part blower housing comprising an upper housing which encloses the motor beneath the motor cap and a lower housing. The centrifugal... | 06/06/1989 |
