Patents by Inventor Laurence R. Thoren

Laurence R. Thoren 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: 4181335
    Abstract: A push release door opener for aluminum storm and screen doors having a push handle comprising a lightweight, inexpensive aluminum push rail with a C-shaped cross-section with top and bottom grooves forming a track and having a first and second end, an adjusting bar slidably attached through the first push rail end to the push rail and slidable in the track formed by the top and bottom grooves, the adjusting bar having a first end which is slidable in the track and a door-attaching end which extends away from the end of the push rail, the adjusting bar further having a Z-shaped bend formed in the door-attaching end for providing a desirable offset of the push rail from the door and for enhancing the inherent resilience of the adjusting bar, the door-attaching end of the adjusting bar being attached to a solid part of the door at the hinge side of the door opposite the handle and at substantially the same level as the handle, and a U-shaped hook slidable in the track of the push rail and operative to connect t
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: January 1, 1980
    Inventor: Laurence R. Thoren