Patents by Inventor Frank H. Weirich

Frank H. Weirich 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 and apparatus for treating contaminated soil
    Patent number: 5265977
    Abstract: A method and apparatus for treating soil contaminated with hydrocarbons by breaking up the soil into discretes and passing the particles through an open flame to cause the volatile substances in them to vaporize and burn. The apparatus is preferably portable and provides for continuous processing of the contaminated soil on-site so that it can be immediately returned to the ground free from contamination.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: November 30, 1993
    Inventors: Frank H. Weirich, Claudia A. Wright, Jon K. Hake
  • Method and apparatus for treating contaminated soil
    Patent number: 5161326
    Abstract: A method and apparatus for treating soil contaminated with hydrocarbons by breaking up the soil into discrete particles and passing the particles through an open flame to cause the volatile substances in them to vaporize and burn. The apparatus is preferably portable and provides for continuous processing of the contaminated soil on-site so that it can be immediately returned to the ground free from contamination.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: November 10, 1992
    Inventors: Frank H. Weirich, Claudia A. Wright, Jon K. Hake