Patents by Inventor Karl Oyler

Karl Oyler 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).

  • Electric detonator with milled and unmilled DBX-1
    Patent number: 9752857
    Abstract: Lead free microdet electric detonators comprising a bridgewire having milled DBX-1 as a spot charge and unmilled DBX-1 as the intermediate material. Such improved microdet electric detonator is free of lead azide and lead styphnate, but with comparable stability, power and sensitivity to current lead-based M100 electric detonators.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: September 5, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Neha Mehta, Gartung Cheng, Kin Yee, Karl Oyler, Akash Shah, John Marin, John W. Fronabarger, Michael D. Williams, Steven H. Marino, Pamela Tran
  • Synthesis of copper(I) 5-nitrotetrazolate
    Patent number: 9440934
    Abstract: A method of manufacture of the primary explosive material copper(I) 5-nitrotetazolate (DBX-1) by a synthesis starting with 5-aminotetrazolate (5-AT); wherein, the synthesis provides intermediates acid copper salt of 5-NT and sodium 5-nitrotetrazolate (NaNT) sodium 5-nitrotetrazolate (NaNT)—that are both, free of any 5-aminotetrazolate (5-AT) starting material—such that the subsequent production of the DBX-1 is not inhibited. Further, this method utilizes an internal filter within the reactor—to minimize handling of explosively dangerous intermediates.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: September 13, 2016
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Neha Mehta, Karl Oyler, Gartung Cheng, Jerry Salan, Shannon Lenahan