Patents by Inventor EXPLOSIVES LIMITED

EXPLOSIVES LIMITED 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).

  • EXPLOSIVE PRESSURE ACTIVATED SWITCH
    Publication number: 20130104764
    Abstract: A switch connectable to an upper explosive device and a lower explosive device in a perforation gun train is provided. The switch comprises a circuit, a portion of the circuit being openable upon detonation of the lower explosive device, and the switch being changeable from a first position to a second position upon the opening of the portion of the circuit. In the first position, current can flow to the lower explosive device but not to the upper explosive device. In the second position, opposing current can flow to the upper explosive device but not to the lower explosive device.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 2, 2013
    Applicant: EXPLOSIVES LIMITED
    Inventor: EXPLOSIVES LIMITED