Raytheon Utd, Incorporated

Utd Incorporated

Raytheon Company

John L Hill, Iii

Joram Shenhar

Benjamin P Dolgin

Steven Cotten

William G Suliga

Brett Goldstein

Eugene L Foster

David Vickerman

Keith Grindstaff

Donald Barnett Harris

Luis B Giraldo

Mike Brennan

Mark Lombardo

Stephen G Solga

David Koch

William J Hutzel

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 Centralizer based Survey and Navigation (CSN) device designed to provide borehole or passageway position information. The CSN device can include one or more displacement sensors, centralizers, an odometry sensor, a borehole initialization system, and navigation algorithm implementing processor(s). Also, methods of using the CSN device for in-hole survey and navigation.

Centralizer-based survey and navigation device and method

A safety device may be used to provide separation in the event of a side impact collision. The device may be used in a utility pole guy wire system, interposed between the guy wire and the ground anchor. The device operates in bending. A lateral force of sufficient magnitude applied to the device by the errant vehicle causes a rod within the device to break in tension, even though the tensile strength of the rod may be greater than that of the guy wire. In operation, certain massive portions of the device are tied safely to the ground, while other portions are pulled over the moving vehicle by the tension of the guy wire. The invention may be designed to tolerate axial loads, but to fail reliably when a side force exceeds a desired threshold. When installed in series with a utility pole guy wire, the invention will withstand all normal tensile and incidental loads, and will release when subjected to a high side force as from an automobile impact.

Releasable device and method

A method and apparatus are disclosed for determining the position of a centerline of a passageway by using a measuring instrument which passes through the passageway taking periodic and successive axial strain measurements which are in turn used to form an interconnected series of circular arc segments representing the centerline.

Method and apparatus for determining path orientation of a passageway

Growing community of inventors

Woodbridge, VA, United States of America

John L Hill, Iii