Patents by Inventor Clarence Bertram Hackett

Clarence Bertram Hackett 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).

  • Surface-inhibited propellent charge
    Patent number: 3985592
    Abstract: 1. A surface-inhibited propellent charge comprising a charge of propellent composition having bonded to at least part of its surface an inhibiting layer comprising silicone rubber supported on biaxially-stretchable glass fabric.
    Type: Grant
    Filed: June 11, 1968
    Date of Patent: October 12, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Clarence Bertram Hackett, James Jack, Richard Paton Reynolds