Patents by Inventor Harlan J. Demers

Harlan J. Demers 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).

  • Concealed load distribution means for wooden beams
    Patent number: 4742663
    Abstract: Wooden beams containing concealed load distribution means embedded therein are disclosed herein. The wooden beams may be either laminated or unitary. The load distribution means is comprised of an elongated member suitably adapted such that loads exerted on the elongated member are therefrom transmitted to and more evenly distributed within the wooden beam.
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: May 10, 1988
    Assignee: Koppers Company, Inc.
    Inventor: Harlan J. Demers
  • Connector and imperforate reinforcement plates in combination
    Patent number: 4299511
    Abstract: A connector plate combination for connecting wooden members comprising a connector plate and an underlying substantially imperforate reinforcement plate, said connector plate having a body portion and a plurality of teeth extending generally transversely outwardly from said body portion, the central portion of said body portion overlying said reinforcement plate, and a plurality of said teeth being forced through said substantially imperforate reinforcement plate.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: November 10, 1981
    Assignee: Koppers Company, Inc.
    Inventor: Harlan J. Demers