Patents by Inventor Philip Newman

Philip Newman 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 for controlling a nitriding furnace
    Patent number: 6024893
    Abstract: Dissociated ammonia carrier gas used as a reference gas is obtained from an ammonia dissociator which also provides dissociated ammonia carrier gas to a nitriding furnace whereby the source of ammonia supply gas is the same. An oxygen probe is used to regulate the nitriding potential of a nitriding furnace and atmosphere for process control and high quality nitrided parts. The method further includes correlating the probe mV output signal to a nitriding potential and adjusting the ratio of ammonia supply gas to dissociated ammonia carrier gas at the inlet of the nitriding furnace.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: February 15, 2000
    Assignee: Caterpillar Inc.
    Inventors: Gary D. Keil, Sheryl A. Tipton, Philip A. Newman, Paul E. Hoernlein
  • Bird cage feeder
    Patent number: 4112871
    Abstract: A feeder assembly of the type which mounts in the bottom of a bird cage includes a rotatable feeding member which allows a supply of bird food or water placed inside the cage to be replenished from outside of the cage.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: September 12, 1978
    Assignee: New Rochelle Manufacturing Co., Inc.
    Inventor: Philip Newman