Patents by Inventor Richard L. Cottingham

Richard L. Cottingham 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).

  • Method of artificially ageing wood
    Patent number: 4701355
    Abstract: A method for artificially ageing wood in which the surface of the wood is subjected to the action of at least one jet of high velocity, high temperature gas, whereby the surface of the wood is scorched, and wherein a lacquer is subsequently applied to the treated surface.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: October 20, 1987
    Assignee: Timber Textures (UK) Limited
    Inventor: Richard L. Cottingham
  • Method of sealing bridge deck joints
    Patent number: 4324504
    Abstract: A method of sealing bridge deck joints on a highway in which the deck members have the road surfacing material removed therefrom and a flexible composition of chips of aggregate in a rubberized binder, such as bitumen, pitch, pitch-tar or tar is inserted in the removed area as a resilient sealing material.
    Type: Grant
    Filed: February 12, 1980
    Date of Patent: April 13, 1982
    Assignee: Thormack Sealants Limited
    Inventors: Richard L. Cottingham, David J. Thorpe, Eric Bickerstaff
  • Flared combustion chamber
    Patent number: 4230447
    Abstract: Apparatus for producing a high velocity stream of gas, for example, for treating a road surface, including an elongate combustion chamber having, along its lower surface, a plurality of discharge orifices, preferably arranged in a line, means to feed combustion gases into the upper portion of the combustion chamber and means to deflect the incoming gases, so that they are distributed within the combustion chamber prior to leaving the combustion chamber through the discharge orifices.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: October 28, 1980
    Assignee: Thormack Engineering Ltd.
    Inventors: Ralph A. Boyne, Richard L. Cottingham
  • Grit blasting apparatus
    Patent number: 4165587
    Abstract: A method and apparatus for grit blasting in which fuel and air are combusted in a flashback combustion chamber to produce a high velocity gas blasting jet and a stream of grit is introduced into the blasting jet.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: August 28, 1979
    Assignee: Thormack Engineering Limited
    Inventors: Richard L. Cottingham, Ralph A. Boyne