Patents by Inventor Mathieu Provencal

Mathieu Provencal 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).

  • Overhead door lift system
    Patent number: 7343958
    Abstract: A garage door cable drum is disclosed for a sectional overhead door of a type having a substantially non-linear lift-weight to lift-height characteristic. The drum includes a generally spiral cable groove having a variable minor radius. The groove minor radius at any intermediate point along the groove is sized to provide a lift-cable moment arm that yields a corresponding cable lift force that is slightly less than an instantaneous lift weight of the garage door at any intermediate door elevation.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: March 18, 2008
    Assignee: Amarr Company
    Inventors: A. Anthony East, Darrin Brunk, Yannick Funk, Normand Savard, Mathieu Provencal