Patents by Inventor Charles T. Fritz, Jr.

Charles T. Fritz, Jr. 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: 4698874
    Abstract: A dual durometer windshield wiper blade assembly comprises an elongated elastomeric wiper blade with an integral squeegee rib of relatively low durometer material. The blade has an integral hinge of circular cross-section coextensive with the squeegee rib and of a relatively high durometer. A high durometer plastic elastomeric blade holder supports the wiper blade at angularly spaced positions upon reciprocation of said assembly.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: October 13, 1987
    Inventor: Charles T. Fritz, Jr.
  • Patent number: 4473919
    Abstract: A windshield wiper blade made of a synthetic elastomeric material includes an elongated body having a longitudinal axis; at least three side-by-side, longitudinally extending wiping ribs integral with the body, the wiping ribs projecting outwardly from the body and having outer ends lying in an arc which is concave toward the longitudinal axis of the body, the wiping ribs being constructed and arranged such that there is a squeegee rib with at least one scraping rib on each side thereof, the squeegee rib having a greater radial length than the scraping ribs; and a mounting rib integral with the body and projecting outwardly therefrom at a location essentially diametrically opposite the squeegee rib, the mounting rib providing a longitudinal extending hinge about which the body can swing in either direction, the arrangement being such that when the blade moves against a windshield the squeegee rib and the scraping rib or ribs on the side thereof facing in the direction of movement engages the windshield and th
    Type: Grant
    Filed: June 2, 1983
    Date of Patent: October 2, 1984
    Assignee: Smear Clear Wiper Corporation
    Inventor: Charles T. Fritz, Jr.