Patents by Inventor Richard P. B. Davis

Richard P. B. Davis 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).

  • Introduction of substances into molten metal
    Patent number: 4470582
    Abstract: A valve assembly for insertion into the bottom of a ladle for molten metal comprises refractory upper and lower parts defining a flow passage with an enlarged central region containing a valve head. The valve head is moved by a spindle to control the flow of gas injected through the valve into the metal.
    Type: Grant
    Filed: February 10, 1983
    Date of Patent: September 11, 1984
    Assignee: Zirconal Processes Limited
    Inventors: Richard D. Shaw, Richard P. B. Davis
  • Method for reducing the thermal inertia of furnace or oven walls
    Patent number: 4324602
    Abstract: The invention relates to reducing the thermal inertia of furnace or oven walls. Insulating modules under compression are secured to the wall and released from compression upon firing of the furnace.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: April 13, 1982
    Assignee: Zirconal Processes Limited
    Inventors: Richard P. B. Davis, Harold G. Emblem, Richard D. Shaw, Stanley J. Shelley
  • Module for furnace walls totally wrapped with thermally combustible material
    Patent number: 4194036
    Abstract: The invention relates to the insulating of furnace walls. In accordance with the invention insulating modules are secured to the wall with cement. According to a preferred feature of the invention the modules are contained under elastic compression in a combustible netting envelope.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: March 18, 1980
    Assignee: Zirconal Processes Limited
    Inventors: Richard P. B. Davis, Harold G. Emblem, Richard D. Shaw, Stanley J. Shelley