Patents by Inventor Marc D. Harper

Marc D. Harper 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).

  • Publication number: 20120248723
    Abstract: A sealed spherical bearing is disclosed, having a race and a ball disposed therein. A seal between the race and the ball inhibits the ingress of contaminants into the spherical bearing. The seal has a first edge. The first edge is secured to a retainer, which is press-fit into an annular groove defined by the race. The ball and the race are rotatable relative to each other. A second edge of the seal is seated in a second annular groove defined the ball. A lubricant is disposed inside the second annular groove. A convex surface of the ball and a concave surface of the race form a sliding surface. A self-lubricating treatment is applied to one or more of the sliding surfaces.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 4, 2012
    Applicant: ROLLER BEARING COMPANY OF AMERICA, INC.
    Inventors: Marc D. Harper, Andrew Henn