Patents by Inventor Laurence M. Kornfield

Laurence M. Kornfield 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).

  • System and method for transferring shear forces in garage door openings
    Patent number: 7905056
    Abstract: Brackets mounted to the corners of a garage door improve the strength of a garage structure in the event of an earthquake. As the garage sways during the earthquake, the door frame contacts the brackets mounted at the upper corners of the door. The brackets transfer shear forces from the frame to the door. Additional brackets mounted at the bottom corners of the door contact the lower portions of the frame and stop the horizontal movement of the garage door. By using the door to transfer the shear forces, the strength of the garage door frame is substantially improved.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: March 15, 2011
    Assignee: The City and County of San Francisco
    Inventor: Laurence M. Kornfield
  • System and method for transferring shear forces in garage door openings
    Publication number: 20070261314
    Abstract: Brackets mounted to the corners of a garage door improve the strength of a garage structure in the event of an earthquake. As the garage sways during the earthquake, the door frame contacts the brackets mounted at the upper corners of the door. The brackets transfer shear forces from the frame to the door. Additional brackets mounted at the bottom corners of the door contact the lower portions of the frame and stop the horizontal movement of the garage door. By using the door to transfer the shear forces, the strength of the garage door frame is substantially improved.
    Type: Application
    Filed: November 22, 2006
    Publication date: November 15, 2007
    Inventor: Laurence M. Kornfield