Patents by Inventor Brian W. Mason

Brian W. Mason 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).

  • Electrical signal generators
    Patent number: 4147993
    Abstract: An electrical signal generator for generating signals at specific frequencies includes means for producing an adjustable frequency output, adjusting means for causing changes in the output frequency, and control means for adjustably pre-selecting the sizes of the frequency changes. In this way, the operator can be provided with a frequency changing control which, when operated, causes the output frequency to change in predetermined steps.
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: April 3, 1979
    Assignee: Racal-Dana Instruments Limited
    Inventors: Malcolm F. Sizmur, David Brewerton, Brian W. Mason
  • Slip cover with spine chamber
    Patent number: D553999
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: October 30, 2007
    Assignee: Great Western Industries, Inc.
    Inventor: Brian W. Mason