Patents by Inventor William Perron

William Perron 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).

  • Sheave for Use in an Elevator System
    Publication number: 20070252121
    Abstract: An elevator sheave (20) includes a belt guiding surface (26) having a surface profile along at least a portion of the belt guiding surface. The surface profile preferably is defined by an nth order polynomial equation where n is a number greater than 2. In one example, the reference point (40) is a central point along the width of the belt guiding surface (26). In one example, a central portion (42) of the surface profile preferably is aligned to be generally parallel with the central axis (34) of the sheave body. Some examples have curvilinear side portions (44, 46) between the central portion (42) and the edges (28, 30) of the sheave. Other examples also include second side portions (48, 50) that have linear profiles.
    Type: Application
    Filed: August 4, 2004
    Publication date: November 1, 2007
    Inventors: Dilip Prasad, Brice Cassenti, Pedro Baranda, William Veronesi, William Perron, Ary Mello, Paul Stucky, John Pitts, John Wesson, Mark Thompson