Patents by Inventor Gregory Papatrefon

Gregory Papatrefon 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).

  • Hand grenade fuze
    Patent number: 7712419
    Abstract: A detonator for a hand grenade fuze comprises a detonator case; a slider that is transversely reciprocable in the detonator case from an unarmed position to an armed position, the slider including a longitudinal through-hole filled with a primary explosive; a spring that biases the slider to the unarmed position; an arming mechanism attached to the slider, the arming mechanism comprising a shape memory alloy; an explosive lead disposed below the slider; and a booster charge disposed below the explosive lead.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: May 11, 2010
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Gartung Cheng, Neha Mehta, Emily A. Cordaro, Gregory Papatrefon, Carl Hu, Brian Fuchs, Neelam Mehta, Kathy Yang