Patents by Inventor Kenneth C. Landry

Kenneth C. Landry 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).

  • Tank cleaning system using remotely controlled robotic vehicle
    Patent number: 5561883
    Abstract: Methods and apparatus are disclosed for cleaning storage containers used in petrochemical or oil refineries. A remotely controllable dual tracked robotic vehicle is placed in a container to be cleaned. A cleaning fluid diluent material is directed against waste material in the container causing a portion of it to form a slurry which is vacuumed out by a nozzle and hose carried by the vehicle. A separator system exterior to the tank processes the removed slurry.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: October 8, 1996
    Inventors: Kenneth C. Landry, Paul Borg
  • Method for treating waste material
    Patent number: 4897205
    Abstract: Preheated diluent and steam are introduced into a container containing waste material typically comprised of a sludge mixture of liquid and solid material including hydrocarbons. The material is thereby heated and its viscosity reduced to form a pumpable slurry. The slurry is pumped out of the container and its viscosity is adjusted to the optimum for separating the solids and liquids. The solids are then separated from the liquid, any valuable material in either the solids and the liquid are recovered and the rest disposed of.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: January 30, 1990
    Assignee: Landry Service Co., Inc.
    Inventor: Kenneth C. Landry
  • Method for treating waste material
    Patent number: RE35815
    Abstract: Preheated diluent and steam are introduced into a container containing waste material typically comprised of a sludge mixture of liquid and solid material including hydrocarbons. The material is thereby heated and its viscosity reduced to form a pumpable slurry. The slurry is pumped out of the container and its viscosity is adjusted to the optimum for separating the solids and liquids. The solids are then separated from the liquid, any valuable material in either the solids and the liquid are recovered and the rest disposed of.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: June 2, 1998
    Assignee: Landry Service Company, Inc.
    Inventor: Kenneth C. Landry