Shock Tube Systems, Inc.

Detotec North America, Inc.

Timothy J O'Brien

John P O'Brien

Stephen W Bartholomew

Thomas A Nadeau

A Jonathan Bawabe

Raymond G Niederwerfer

A block molded from a polymeric material has a through passageway to contain a percussive shock wave. Angularly related channels communicate with the containment passageway for receiving arcuate segments of detonation cord. Alignment of a plurality of blocks provides a convenient packaging setup for the cord. A percussive signal traveling along the cord can be short-circuited in the packaging setup. A diode version of the block can react to the signal in a given direction of travel.

Diode cutoff and safe packaging system for detonating cord

Percussive signal transmission tubes, of contrasting color, are joined along adjacent longitudinally extending portions by an adhesive bead of polymeric material. The tubes can be separated in the field and are provided on spools without any sheath. A small diameter (0.10 inch) tube can be used to reduce the size of the spool, or increase the length of tubing wound on the spool. An apparatus for assembling the product is also disclosed.

Redundant signal transmission system and development method

Redundant signal transmission system and deployment means

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Mystic, CT, United States of America

Timothy J O'Brien