RANDALL W WELKER
Engineers in Grove City, PA
License number
Pennsylvania PE044462E
Category
Engineers
Type
Professional Engineer
Address
Address
Grove City, PA 16127
Professional information
Articulated Vehicle
US Patent:
5873431, Feb 23, 1999
Filed:
May 3, 1996
Appl. No.:
8/642571
Inventors:
Daniel N. Butler - Franklin PA
George A. Fischer - Grove City PA
Randall W. Welker - Grove City PA
George A. Fischer - Grove City PA
Randall W. Welker - Grove City PA
Assignee:
Joy MM Delaware, Inc. - Wilmington DE
International Classification:
B62D 1100
US Classification:
180418
Abstract:
An articulated vehicle comprising a first vehicle portion attached to a second vehicle portion by a joint assembly. The joint assembly preferably comprises a bearing assembly that is pivotally attached to the first vehicle portion such that the bearing assembly can pivot relative to the first vehicle portion about a substantially horizontal axis that is substantially transverse to the longitudinal axis of the vehicle. The bearing assembly is also preferably pivotally attached to the second vehicle portion such that the bearing assembly can pivot relative to the second vehicle portion about a substantially vertical axis. The bearing assembly is preferably constructed to enable the first vehicle portion to rotate about the longitudinal axis relative to the second vehicle portion.