Patents by Inventor Michael D Huddleston

Michael D Huddleston 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: 6574830
    Abstract: A vacuum cleaner accessory that is used in cleaning heat exchanger units for heating and cooling machinery, wherein the invention comprises of a wand-like body forming an interior that is continuously connected at a rear open end with a vacuum source and at a front open end has an aperture which allows the interior of the device to meet the exterior environment. The unattached front open end has at least one prong-like extension upon which a brush is movably attached and is held in close proximity to the aperture. In operation, the vacuum source is applied to the device and the brush of the device is applied to and rolled over the surface of the heat exchanger unit to be cleaned. The rolling action of the brush agitates and removes particulate matter that has settled upon and coated the surface of the heat exchanger unit.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: June 10, 2003
    Inventor: Michael D Huddleston
  • Publication number: 20030014832
    Abstract: A vacuum cleaner accessory that is used in cleaning heat exchanger units for heating and cooling machinery, wherein the invention comprises of a wand-like body forming an interior that is continuously connected at a rear open end with a vacuum source and at a front open end has an aperture which allows the interior of the device to meet the exterior environment. The unattached front open end has at least one prong-like extension upon which a brush is movably attached and is held in close proximity to said aperture.
    Type: Application
    Filed: July 23, 2001
    Publication date: January 23, 2003
    Inventor: Michael D. Huddleston
  • Patent number: 5297366
    Abstract: An electric drill is used with a specially designed arbor to attach a drill pad to the drill. The drill pad is removeably affixed to a sanding disc or a buffing disc by hook and loop fasteners. The attached discs are firmly affixed to the drill pad for use while sanding or buffing a surface. The discs are easily pulled from the drill pad and a replacement is easily attached without needing to use tools.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: March 29, 1994
    Inventor: Michael D. Huddleston