ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,194, issued on Feb. 10, was assigned to DynaEnergetics Europe GmbH (Troisdorf, Germany).
"Method and apparatus for automatic arming of perforating gun" was invented by Christian Eitschberger (Munich).
According to the abstract* released by the U.S. Patent & Trademark Office: "A perforating gun may include a first housing, a charge holder positioned within the first housing and configured to receive a shaped charge, an initiator, a detonating cord configured to detonate the shaped charge, and a first spring positioned within the first housing. A relative position of the initiator and the detonating cord may be movable between a first position in which the perforating gun is ballis...