J. H. Fletcher & Co., Inc.

William Garnet Kendall

Robert Dean Burgess

Timothy D Burgess

Robert G Anderson

Henry Eugene Wilson

Lyle Abraham Crum

William Andrew Burgess, Jr

Sean Joseph McQuerrey, Jr

Garron Alan Ross

Cassidy O'Connell

Jeff Kemper

Dale Ferguson

Jacobus Janse Van Rensburg

William A Burgess

Sean Joseph Mcquerrey

A system and method for installing and removing a porous plug relative to a port of metallurgic ladle includes an extendable boom rotatable about vertical axis and pivotable up and down at a first end of the boom. A mast is coupled to a second end of the boom and rotatable about multiple axes relative to the boom to position or maintain the mast in a given orientation, such as in alignment with the port of the ladle in response to rotatable or pivotable movement of the boom. The mast includes a slider mast that is translatable along the length of the mast to insert the plug or retract the plug. The mast may also include jaw grippers to secure the plug and may be configured to rotate the plug relative to the mast. The system may automatically control the position and orientation of the boom, mast, and slider mast.

System and method for porous plug removal and installation

An autonomous roof bolter includes a material handling system having a storage pod with a plurality of spaced, fixed holders, each receiving at least one of a plurality of roof bolts. A guidance system may automatically guide the roof bolter to a location for installing a roof bolt, such as by using a manipulator for retrieving the roof bolt from the storage pod and delivering it to a drill mast. The guidance provided by the guidance system may be distance or direction. Related methods are disclosed.

Autonomous roof bolter and related methods

An apparatus for treating a surface has a vehicle including an extensible boom. A multi-purpose hood is attached to the boom. The hood includes at least one nozzle for spraying a fluid through an outlet of the hood, the nozzle adapted for reciprocating, non-rotational movement in a generally linear direction relative to the opening in the hood. The multi-purpose hood may be adapted for rotating independently about three different axes, and may include a first actuator for controlling a roll of the hood, a second actuator for controlling a yaw of the hood, a third actuator for controlling a pitch of the hood, and a fourth actuator for controlling an extension of the boom and a second actuator for controlling a swing of the boom. The extensible boom may be connected to a telescoping conduit for communicating fluid along the boom to or from the multi-purpose hood. Related methods are also disclosed.

Multipurpose machine for surface treatment and related method

A drilling apparatus including a drill is disclosed for use with a mine roof bolter. The apparatus includes a support adapted to rotate the drill about two different axes. The first axis may be a vertical axis and the second axis may be a horizontal axis. The drilling apparatus includes a mast for supporting the drill and allowing relative movement of the drill with respect to the mast. The drilling apparatus additionally includes an element for longitudinally moving the mast with respect to the support. The drilling apparatus may further include a mesh aligner for aligning the mesh with respect to the drill. A drill guide with a small footprint may also be included which is capable retracting within a housing to avoid interference with a face of the mine when positioning the drilling apparatus.

Drilling apparatus

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Chesapeake, OH, United States of America

William Garnet Kendall