Patents by Inventor William H. Lamansky

William H. Lamansky 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).

  • Process for treating wood products
    Patent number: 4670992
    Abstract: The invention relates to an improved process for drying and preserving wood products. The improved process comprises the steps of first drying the wood products by submerging them in a naphthalene poor, coal tar based heat transfer medium under conditions of elevated temperature and reduced pressure. The dried wood products then are impregnated with a naphthalene rich, coal tar based wood preservative agent by submerging said dried wood products in said agent under conditions of both elevated temperature and pressure.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: June 9, 1987
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Robert E. Leonard, William H. Lamansky
  • Process for the preservation of wood products
    Patent number: 4668539
    Abstract: The present invention relates to improvements in impregnated wood preserving processes utilizing naphthalene containing preservative agents comprising recovering that portion of the naphthalene stripped from the preservative agent during a drying phase in the process and returning said recovered naphthalene portion to the impregnation phase of said process.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: May 26, 1987
    Assignee: Kerr-McGee Chemical Corporation
    Inventors: Robert E. Leonard, William H. Lamansky