Patents by Inventor Lance D. Redman

Lance D. Redman 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).

  • Firing cap composition containing lead styphnate
    Patent number: 4605453
    Abstract: A conducting composition suitable for use in a firing cap is disclosed. The conducting composition comprises normal lead styphnate which has a mean particle size not less than 55 microns, in admixture with carbon black which has a mean aggregate size between 5 microns and about 15 microns. The conducting composition has less sensitivity than known conducting compositions and therefore when used in a conducting cap renders the cap less likely to unintential ignition by induced e.m.f. such as from radio transmitters or the like.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: August 12, 1986
    Assignee: The Commonwealth of Australia
    Inventors: Robert J. Spear, Lance D. Redman