Patents by Inventor Robert D. McKinney

Robert D. McKinney 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 power jet assembly
    Patent number: 5301702
    Abstract: A method and apparatus for preventing formation of solids in a tank and for removing solids contained in the tank, a pipe assembly rigidly connected to the tank for conveying heated liquids to the interior of the tank, a rotatable jet assembly rotatably connected to the pipe assembly for receiving the heated liquids from the pipe assembly and spraying the heated liquids onto the bottom of the tank.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: April 12, 1994
    Inventor: Robert D. McKinney
  • Radio mounted in a helmet
    Patent number: 4077007
    Abstract: A helmet has an antenna mounted within the helmet, a set of ear phones mounted within the insulating material of the helmet adjacent to a user's ears, a battery compartment mounted within a recessed panel in a side of the helmet, a volumn control and on off switch and AM FM switch and AM controls and FM controls mounted in the recess of the panel, and a visor is mounted to a front of the helmet.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: February 28, 1978
    Assignee: The Raymond Lee Organization
    Inventor: Robert D. McKinney