Patents by Inventor David S. Lewis

David S. Lewis 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: 20110313837
    Abstract: A system includes a server, a member portal in communication with the server, a merchant portal in communication with the server, wherein the server captures data relating to a member and the member's transactions, receives data entered by the member and processes the data to administer an advertising, loyalty and rewards program.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 22, 2011
    Inventors: Michael J. Katz, Chad A. Osgood, Lyndon B. Whitley, David S. Lewis
  • Patent number: RE30790
    Abstract: Improved lubrication of bearing cups in universal joints is provided. A cross of a universal joint has four trunnions extending therefrom along two mutually perpendicular lines. Bearing cups are rotatably received on the trunnions and the cups in turn are held by universal joint yokes. Lubrication passages extend from a central portion of the cross outwardly toward the ends of the trunnions. When the universal joint is stationary, lubricant such as grease may drain from an upper bearing cup down to a lower cup, leaving the upper cup devoid of lubrication when the universal joint is again placed in operation. In accordance with the invention, a cavity is in the end of each trunnion communicating with the bearing cup and a passage extension extends substantially through the cavity from the lubrication passage toward the end of the trunnion.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: November 10, 1981
    Assignee: The Zeller Corporation
    Inventor: David S. Lewis