Patents by Inventor Shawn R. Wilhelm

Shawn R. Wilhelm 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).

  • Adjustable linkage for variable displacement
    Patent number: 9441483
    Abstract: An apparatus comprising a crank-slider linkage and a rocker link. The crank-slider linkage has a crank coupled to the slider by a jointed connecting rod. The jointed connecting rod has a first link and a second link. The first link is coupled to the second link by a first revolute joint. The first link is coupled to the crank and has a longitudinal axis. The rocker link has a rocker end and a ground end. The rocker end is coupled to the jointed connecting rod. The ground end is coupled to ground by a second revolute joint. The rocker link and the second link are disposed on a common side of the longitudinal axis.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 13, 2016
    Assignees: Regents of the University of Minnesota, Worcester Polytechnic Institute
    Inventors: James D. Van de Ven, Shawn R. Wilhelm
  • ADJUSTABLE LINKAGE FOR VARIABLE DISPLACEMENT
    Publication number: 20140060319
    Abstract: An apparatus comprising a crank-slider linkage and a rocker link. The crank-slider linkage has a crank coupled to the slider by a jointed connecting rod. The jointed connecting rod has a first link and a second link. The first link is coupled to the second link by a first revolute joint. The first link is coupled to the crank and has a longitudinal axis. The rocker link has a rocker end and a ground end. The rocker end is coupled to the jointed connecting rod. The ground end is coupled to ground by a second revolute joint. The rocker link and the second link are disposed on a common side of the longitudinal axis.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Applicants: Worcester Polytechnic Institute, Regents of the University of Minnesota
    Inventors: James D. Van de Ven, Shawn R. Wilhelm