Patents by Inventor James A. Petrousky

James A. Petrousky 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).

  • Shaped charge with explosively driven liquid follow through
    Patent number: 4955939
    Abstract: Disclosed is a non-fragmenting explosive device for perforating a target injecting a material through the perforation to disrupt structure behind the target. The device is particularly adapted to safely disarm unexploded explosive devices such as bombs without detonation of the bomb. The device includes an outer covering of explosive material for explosively confining the disruptive material to a well defined shape for total injection into the target.
    Type: Grant
    Filed: March 2, 1983
    Date of Patent: September 11, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James A. Petrousky, Joseph E. Backofen, Donald J. Butz
  • Disintegrating tamper mass
    Patent number: 4628819
    Abstract: A tamper mass including particulate material held together by a binder in a elf-contained supporting shape surrounding a concavity in a forward face containing an explosive, whereby upon detonation of the explosive, the tamper material provides initial and temporary confinement of detonation products to directing forces forward. After shock loading, the tamper material disintegrates into very fine particles, which individually contain very little energy in dispersion.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: December 16, 1986
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joseph E. Backofen, Jr., James A. Petrousky, Donald J. Butz, David W. Holmes, Ernest C. Faccini, Arleigh E. McCree