Hydril Company

Other

Bruce E Wilson

John F O'Rourke

Frederick C Lee

William L De Boynton

Joseph W Miller

Harold C Thornton, Jr

James D Wolfenbarger

A work-engaging member is attached to the wheelchair frame adjacent to the footrest assembly of a wheelchair to cause latching and releasing of the footrest assembly for rotation about a vertical axis. As the work-engaging member is turned by a rotatable means a surface thereon which is spaced from the axis of rotation slidably contacts the footrest assembly to push the footrest assembly latch and causes the footrest assembly to swing to the side of the wheelchair. Rotation of the work-engaging member in the opposite direction causes the device to contact a surface of the footrest assembly thereby laterally urging the footrest assembly around the vertical axis so as to reposition and cause the latching of the footrest assembly into a locked position in front of the wheelchair.

Remotely operated wheelchair footrest moving device

A workpiece gaging system includes carriage structure for a gaging part, movable longitudinally and laterally, and a rotor to rotate that structure; also indicator means is operatively connected with the part to indicate the status of engagement, displacement, or need for displacement, of the gaging part relative to a surface or surfaces (such as pipe threads) to be gaged, as at multiple locations. Measurement encoding and signal processing means are also provided.

Method of gaging a pipe at multiple locations

Workpiece gaging apparatus

Growing community of inventors

Chino, CA, United States of America

Bruce E Wilson