Raytheon Company

Raytheon Utd, Incorporated

Mike Brennan

Luis B Giraldo

John M Ryan

Brett Goldstein

Rob Wallace

Ed Dezelick

Mike Millspaugh

Benjamin P Dolgin

Joram Shenhar

John L Hill, Iii

David Koch

Mark Lombardo

A method of supporting a substrate includes inserting a rock bolt into a hole and using the rock bolt to form a groove in a wall of the hole when the rock bolt is inserted therein. The rock bolt is caused to interact with the groove in such a way that the rock bolt is secured in the hole at least in part by the interaction.

Drilling apparatus, method, and system

A breaching apparatus includes an impactor element and a self-contained energy source. The self-contained energy source enables the impactor element to impact a first surface of a structure. The impactor element is configured to transmit a localized shock wave through the structure upon impact. The self-contained energy source is capable of accelerating the impactor element to a velocity sufficient to induce spalling at a second surface of the structure. Multiple breaching apparatuses can be supported by a frame to facilitate simultaneous or successive breaching of the structure. The breaching apparatus can be used in a method to breach a concrete structure.

Device and method for controlled breaching of reinforced concrete

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Bristow, VA, United States of America

Mike Brennan