Patents by Inventor Andrew Lee McCourt

Andrew Lee McCourt 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).

  • Patent number: 10468788
    Abstract: A device for rendering safe a detonator firing circuit by short circuiting multiple conductors in the circuit includes a base portion and cable piercing members. The base portion has a cylindrical block and apertures for retentively receiving the cable piercing members. The cable piercing member has a first end to impinge on and penetrate a cable insulation when forcibly attached to an external surface of the cable. The cable piercing member has a low electrical resistance and impedance to generate a short circuit between conductors of the cable. Also, a method for rendering safe a detonator firing circuit of by short circuiting multiple conductor cables or a pigtail connector of a detonator system.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: November 5, 2019
    Assignees: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Lawrence R. Shapnek, Charles S. Field, III, WVenner Saul, Nathan A. Davey, Andrew Lee McCourt, Dennis J. De Smet, Charles A. Walker, Daniel M. C. Odell, Kevin Thomas