Patents by Inventor Rodney J. Digman

Rodney J. Digman 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).

  • Muntin bar assembly
    Patent number: 5657590
    Abstract: A muntin bar strip member adapted to interconnect to a cooperating strip member. The strip member has a wall member; a coupling means, such as a flange, extending from a longitudinal edge of the wall member; and a female coupling member, such as a channel, extending along an opposite longitudinal edge of the wall member. A muntin bar can be formed from a strip member interconnected to a second similarly structured strip member, where the flange of the second strip member is engaged in the channel of the first strip member, and conversely the flange of the first strip member engaged in the channel of the second strip member.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: August 19, 1997
    Assignee: Quanex Corporation
    Inventors: Rodney J. Digman, Clemith E. Sorey, Robert E. Daniels, Jr.