Patents by Inventor David John Marley

David John Marley 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).

  • Steam conditioning valve
    Patent number: 4011287
    Abstract: A steam conditioning valve having a multi-turn labyrinth disk stack mounted between the inlet and the outlet of the valve is provided with a cooling fluid spray assembly for injecting the cooling fluid into the valve upstream of the labyrinth. The spray assembly includes a cooling fluid supply line extending through the valve housing without physically contacting the housing to prevent heat transfer between the cooling fluid line and the valve housing.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: March 8, 1977
    Inventor: David John Marley