Patents by Inventor Carl C. Bechgaard

Carl C. Bechgaard 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).

  • Protective composition with penetrating carrier
    Patent number: 4610881
    Abstract: In a composition for application to a porous substrate, e.g. timber, to protect it e.g. from attack by insects or fungi, there is a protective substance, e.g. a boron-rich compound (containing at least 25% by weight B.sub.2 O.sub.3) in a liquid carrier which according to the invention is a hygroscopic liquid, preferably ethylene glycol. When applied to wood the composition with the glycol carrier penetrates the outer layers of the wood more rapidly than a comparable composition with water as carrier.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: September 9, 1986
    Inventor: Carl C. Bechgaard
  • Method of preserving timber
    Patent number: 4269875
    Abstract: A method of preserving timber from decay liable to arise in the presence of moisture, e.g. in railway sleepers, comprises forming cavities in the timber at appropriate points and inserting in each cavity a plug which has been fused into a monolithic element consisting of a water-soluble wood preservative such as boric oxide; the wood preservative diffuses into the timber from the plug, to establish a zone protected from decay, more slowly from a fused than from a compacted plug.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: May 26, 1981
    Assignee: Wood-Slimp GmbH
    Inventors: Carl C. Bechgaard, Joseph Dulat