Patents by Inventor Saturnino Nunez Arias

Saturnino Nunez Arias 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: 5664276
    Abstract: A brush-type sweeper unit includes a prism-like body that has a base with an open front part, an open front face, and an upper face provided by a removable cap from which a handle for moving the sweeper unit extends. The body also includes parallel sidewalls between which first, second and third shafts extend, with the second shaft being between the first and third shafts. Front and rear cylindrical brushes are mounted on the respective first and second shafts, and a set of front wheels are also mounted on the first shaft at opposite ends thereof. Mounted on the third shaft are a set of rear wheels that are in edge-to-edge frictional engagement with a set of driven wheels on the second shaft. In this way the rear brush is driven by rotation of the rear wheels transmitted through the driven wheels, with rotation of the rear brush being in a direction opposite to the rotational direction of the front brush.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: September 9, 1997
    Inventor: Saturnino Nunez Arias