Patents by Inventor Nikolai Perlmuter

Nikolai Perlmuter 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).

  • Two-stage shaped charge projectile
    Patent number: 4854240
    Abstract: A two-stage, shaped charge projectile having a rear principal charge and a front secondary smaller charge with an initiator-fuse assembly for sequentially igniting the secondary and principal charges so that the secondary charge is first ignited, followed by ignition of the principal charge after a predetermined time delay. The secondary charge is maintained at a set distance in front of the principal charge which is shielded from rearwardly expanding combustion gases and rearwardly flying debris when the secondary charge is ignited, with these gases and debris being diverted away from the principal charge after the secondary charge has been detonated.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: August 8, 1989
    Assignee: The State of Israel, Ministry of Defence, Israel Military Industries
    Inventors: Eitan Hirsch, Alexander Gutmann, Ana Schwartz, Eliezer Goren, Nikolai Perlmuter, Reuven Tal