Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7547352 | Air cleaner conductor system An air cleaner conductor system is provided according to an embodiment of the invention. The air cleaner conductor system includes an electrostatic precipitator assembly, a chassis including an electrostatic precipitator receptacle and a power supply, and two or mor... | 06/16/2009 |
| 7413594 | Electrical power disable in an air cleaner An air cleaner is provided according to an embodiment of the invention. The air cleaner includes a power supply, an electrostatic precipitator cell, and a door. The door closes the electrostatic precipitator cell inside the air cleaner. The air cleaner further inclu... | 08/19/2008 |
| 7411133 | Method for retaining a power cord A cord management system operable to reduce or eliminate various forces exerted on a vacuum cleaner power cord. The system includes a swiveling strain relief incorporated into the vacuum handle and collars, used to connect sections of dirty air conduit, having exter... | 08/12/2008 |
| 7398579 | Ergonomic appliance handle An ergonomic appliance handle is provided according to an embodiment of the invention. The appliance handle includes a base adapted to be affixed to a handle portion of an appliance, a handle grip, and a pivot device for pivotally attaching the handle grip to the ba... | 07/15/2008 |
| 7360277 | Vacuum cleaner fan unit and access aperture A vacuum cleaner according to an embodiment of the invention includes a chassis, a fan unit including a blower housing mounted to the chassis and an inlet housing affixed to the blower housing, and a baseplate affixed to the chassis. An access aperture is formed in ... | 04/22/2008 |
| 7357828 | Air cleaner including constant current power supply An air cleaner including a constant current power supply is provided according to an embodiment of the invention. The air cleaner includes a collector cell and a constant current power supply coupled to the collector cell. The constant current power supply is config... | 04/15/2008 |
| D563538 | Air purifier | 03/04/2008 |
| 7325271 | Clamp device for removably attaching a vacuum cleaner component to a structure A clamp device for removably attaching a vacuum cleaner component to a structure according to an embodiment of the invention includes a clamp adapted to removably attach to the structure, a slot formed in the clamp, and a knob attached to the vacuum cleaner componen... | 02/05/2008 |
| 7316736 | Carbon filter panel for an air cleaner A carbon filter panel for an air cleaner is provided according to an embodiment of the invention. The carbon filter panel includes a frame including one or more side members and a frame interior space and a plurality of spaced-apart carbon elements extending across ... | 01/08/2008 |
| 7316729 | Air cleaner with improved airflow An air cleaner is provided according to an embodiment of the invention. The air cleaner includes an air duct including an inlet end and an outlet end, a pre-filter positioned at the inlet end, an electrostatic precipitator positioned in the air duct downstream of th... | 01/08/2008 |
| 7306655 | Corona ground element A corona ground element for use in a pre-ionizer of an electrostatic precipitator is provided according to an embodiment of the invention. The corona ground element includes a substantially elongate body including a proximate end and a distal end and first and secon... | 12/11/2007 |
| 7305736 | Height adjustment apparatus for a rotatable component of a vacuum cleaner A height adjustment apparatus for a rotatable component of a vacuum cleaner is provided. The apparatus includes a rotatable wheel and a retainer device. The rotatable wheel includes a central axis, a wheel portion, a hub portion including an offset axle aperture tha... | 12/11/2007 |
| 7306648 | Retainer for use with a corona ground element of an electrostatic precipitator A retainer for use with a corona ground element of an electrostatic precipitator is provided according to an embodiment of the invention. The retainer includes a body and a retainer aperture extending at least partially through the body and adapted to receive a proj... | 12/11/2007 |
| 7293325 | Vacuum cleaner base plate assembly A vacuum cleaner base plate assembly is provided according to an embodiment of the invention. The base plate assembly includes a base plate adapted to fit to a chassis bottom of a vacuum cleaner. The base plate includes one or more nozzle apertures. The base plate a... | 11/13/2007 |
| 7291206 | Pre-ionizer for use with an electrostatic precipitator A pre-ionizer for use with an electrostatic precipitator is provided according to an embodiment of the invention. The pre-ionizer includes two or more corona ground elements arranged in a substantially parallel orientation. A corona ground element of the two or more... | 11/06/2007 |
| 7276106 | Electrode wire retaining member for an electrostatic precipitator An electrode wire retaining member for an electrostatic precipitator is provided according to an embodiment of the invention. The electrode wire retaining member includes one or more flexible arm portions extending from the body and formed of an at least partially f... | 10/02/2007 |
| D551330 | Air purifier | 09/18/2007 |
| 7246409 | Manually-powered floor sweeper with vacuum port A manually-powered floor sweeper is provided according to the invention. In one embodiment, the manually-powered floor sweeper includes a chassis and handle, one or more agitator rollers rotatably affixed to the chassis and rotated by movement of the floor sweeper, ... | 07/24/2007 |
| 7241330 | Air cleaner electrostatic precipitator cell An electrostatic precipitator cell is provided according to an embodiment of the invention. The electrostatic precipitator cell includes a connection rod including first and second ends, a length, a cross-sectional shape, and a lengthwise surface. The electrostatic ... | 07/10/2007 |
| 7210194 | Airflow sensor system for monitoring air inlet airflow and air outlet airflow of a vacuum cleaner An airflow sensor system for monitoring air inlet airflow and air outlet airflow of a vacuum cleaner is provided according to an embodiment of the invention. The airflow sensor system includes a vacuum cleaner air duct, a bypass tube connected to the air duct, and a... | 05/01/2007 |
| D519695 | Carpet cleaner | 04/25/2006 |
| RE38998 | Balanced flow vacuum cleaner An apparatus and method for transporting a flow of air and particulates through a vacuum cleaner. In one embodiment, the apparatus includes an intake body having an intake opening configured to receive the flow of air into particulates. An airflow propulsion device ... | 03/07/2006 |
| RE38842 | Vacuum cleaner bag docking assembly For use with vacuum cleaner bags of the type having a substantially rigid collar surrounding the bag opening, and with vacuum cleaners of the type having a dirty air outlet nozzle, a vacuum bag docking assembly is shown and described. The assembly incorporates an an... | 10/25/2005 |
| D493925 | Containment member for floor care apparatus | 08/03/2004 |
| 6277163 | Vacuum cleaner outer bag An apparatus and method for housing a filter element of a vacuum cleaner. In one embodiment, the apparatus can include a housing body elongated along a housing axis. The housing body can include a partially porous material clamped at an upper end to an up... | 08/21/2001 |
| 6055703 | Upright vacuum cleaner having improved steering apparatus with a lock out feature An upright steerable vacuum cleaner comprised of a handle, body, nozzle base and air duct therein further having a swivel joint at the junction of the nozzle base and body. The swivel joint or steering mechanism comprises a trunnion pivotably connected to... | 05/02/2000 |
