Patents by Inventor Alfred D. Robinson

Alfred D. Robinson 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 and apparatus for monitoring and measuring a gas
    Patent number: 4226675
    Abstract: Method and apparatus for monitoring and signalling the quantity of a known gas, or gases, in a gas mixture. The monitoring system is particularly adapted to continuously sense the quantity of hydrogen or oxygen in the containment gas mixture for a nuclear reactor electrical power generator. The monitoring system utilizes thermal conductivity gas measuring cells arranged in an electrical bridge network along with a catalytic reactor for modifying the constituency of the containment gas mixture undergoing measurement to provide the signal representative of the changes in constituency of the containment gas mixture at the power generating site.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: October 7, 1980
    Assignee: Comsip Delphi, Inc.
    Inventors: Gary W. Lewis, Alfred D. Robinson
  • Pressure regulator valve
    Patent number: 4094337
    Abstract: A pressure reducing valve particularly constructed for use with hot high pressure water by the incorporation therein of a sapphire valve head, seat and head engaging element.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: June 13, 1978
    Assignee: Delphi Instruments, Inc.
    Inventor: Alfred D. Robinson