Patents by Inventor John Harold Evans

John Harold Evans 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).

  • Single charge pyrotechnic
    Patent number: 5672843
    Abstract: A single charge pyrotechnic material comprising a metal fuel, an oxidizer and a secondary fuel which can be used to control the rate of reaction of the pyrotechnic. The composition can be used as a single charge igniter in an automotive air bag system in place of the separate ignition charge and enhancer charge currently utilized.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: September 30, 1997
    Assignee: ICI Americas Inc.
    Inventors: John Harold Evans, Michael Albert Lehmicke
  • Airbag igniter and method of manufacture
    Patent number: 5639986
    Abstract: The present invention is directed to an improved igniter for airbags wherein the igniter is combined with an airbag assembly fixedly making metal-to-metal communication.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 17, 1997
    Assignee: ICI Americas Inc.
    Inventor: John Harold Evans