Patents by Inventor Yelena V. Yufa

Yelena V. Yufa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7571508
    Abstract: This invention provides the web and/or dust cleaning. An improved portable cleaning device comprises a brush portion, including a telescopic portion and a cleaning brush, coupled with the cleaning device handle portion, including a handle, a power supply electrically connected to a reversible motor, providing reversible rotation of the brush portion during web and/or dust cleaning operation, a switching device for motor rotation direction control, and a power supply connecting elements. The motor axle is coupled by a connection block with the telescopic portion of the brush portion. Also, the rotation of the brush portion is provided by a mechanical power-driven device.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: August 11, 2009
    Inventor: Yelena V. Yufa