Patents by Inventor Michael Pal Sales

Michael Pal Sales 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).

  • Drive Unit For Raising And/Or Lowering A Roller Shutter
    Publication number: 20080163989
    Abstract: A drive unit (10) for a roller shutter assembly is disclosed. The drive unit (10) includes at least two electrical motors (14) and a reduction gear train (12). Each electric motor (14) includes an output shaft that is mechanically coupled to an axle engaging means (20) via the reduction gear train (12). The electric motors (14) are operable to generate mechanical power generated by the combination of the electric motors (14) is coupled to the axle engaging means (20) via the reduction gear train (12) to wind a roller shutter of the roller shutter assembly onto or off an axle.
    Type: Application
    Filed: March 11, 2005
    Publication date: July 10, 2008
    Inventors: Michael Pal Sales, Stephen Noel Corboy