Patents by Inventor Keith R. Haslem

Keith R. Haslem 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).

  • Adjustable height inlet/outlet liquid level management tools and systems
    Publication number: 20100230347
    Abstract: Apparatus for managing layers of different density includes an enclosed tank for holding the liquids so that they stratify into separate layers of different levels in the tank. A conduit for liquid in the tank is open at an inner end to the tank interior, and is open at an outer end to the tank exterior. A drive moves the inner end of the conduit to different levels within tank so liquid can be transferred into or out of different levels in the tank. The drive preferably being a gear mechanism employing woodruff-type tabs.
    Type: Application
    Filed: March 9, 2010
    Publication date: September 16, 2010
    Inventor: Keith R. Haslem
  • Adjustable height inlet/outlet liquid level management tools and systems
    Patent number: 7703613
    Abstract: Apparatus for managing layers of different density includes an enclosed tank for holding the liquids so that they stratify into separate layers of different levels in the tank. A conduit for liquid in the tank is open at an inner end to the tank interior, and is open at an outer end to the tank exterior. A drive moves the inner end of the conduit to different levels within tank so liquid can be transferred into or out of different levels in the tank.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: April 27, 2010
    Inventor: Keith R. Haslem
  • Adjustable height liquid level management tools and systems
    Publication number: 20100072123
    Abstract: A lift mechanism positioned on a tank containing potentially explosive gases, corrosive material and/or poisonous material with the motor of the mechanism on top of the lift and more than five feet away from any vent or opening of the tank and one or more devices inside the tank being moved and positioned by the lift mechanism.
    Type: Application
    Filed: October 30, 2009
    Publication date: March 25, 2010
    Inventors: Keith R. Haslem, Fred L. Bartlett
  • Adjustable height liquid level management tools and systems
    Publication number: 20090320569
    Abstract: A lift mechanism positioned on a tank containing potentially explosive gases, corrosive material and/or poisonous material with the motor of the mechanism on top of the lift and more than 5 feet away from any vent or outlet of the tank and one or more devices inside the tank being moved and positioned by the lift mechanism.
    Type: Application
    Filed: May 15, 2008
    Publication date: December 31, 2009
    Inventors: Keith R. Haslem, Lee B. Golter, Fred Burtlett