Patents by Inventor Louis C. Rutledge

Louis C. Rutledge 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).

  • Patent number: 5074247
    Abstract: An insect containing test apparatus which is applied to a skin region of a est subject includes a rectangular slide and test cage made of a clear, autoclavable polycarbonate plastic. The test cage is injection molded to a generally rectangular shape and includes a peripheral flange extending outwardly from sides at an open top. A screen member covering the open top is then heat pressed onto this flange. Test holes are also punched into the bottom the test cage. During injection molding, U-shaped channels along each respective longitudinal side adjacent the bottom are also provided to receive the slide so that the slide is selectively moved to cover and uncover the test holes in the bottom.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: December 24, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Raj K. Gupta, Louis C. Rutledge, William J. Letourneau