Bryan Campbell Campbell

US Patent:

62031112, Mar 20, 2001

Filed:

Oct 29, 1999

Appl. No.:

9/430567

Inventors:

Mark Ollis - Pittsburgh PA
Steven John Scheding - Mortdale, NSW, 2223, AU
Christopher C. Fromme - Pittsburgh PA
Jorgen Pederson - Pittsburgh PA
John Bares - Wexford PA
Herman Herman - Pittsburgh PA
Anthony J. Stentz - Pittsburgh PA
David K. Herdle - Cranberry Twp. PA
Frank Higgins - Cranberry Twp. PA
Bryan G. Campbell - Pittsburgh PA

International Classification:

E21C 3508

US Classification:

299 105

Abstract:

A mining machine comprising a vehicle body having forward and rearward ends, the vehicle body being movable along a mine floor, a cutter head mounted on the forward end of the vehicle body, and a position sensing and control apparatus including first and second generally vertical, generally parallel surfaces on the vehicle body, an off-board light source emitting a light beam that strikes the surfaces, an imaging device for imaging both of the plates in a single image, and a computer receiving the single image from the camera, the computer using the single image to determine at least one of the roll, yaw and lateral offset of the machine.