(under subclass 80.1) Vehicle in which a wheel or plural wheels are rotatably mounted upon an axle supported at both ends by a bracket or framing which is attached to the vehicle body, chassis, or frame about a vertical pivot axis for free pivotal motion.
(1) Note. An apparatus including means for creating pivotal motion for steering purposes is excluded from this subclass and the subclasses indented hereunder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81.1, for running gear comprising multiple trucks.
82+, for a swivel truck specifically provided to support and guide a draft connection or tongue of a vehicle.
93.504+, for a general utility wheeled land vehicle including occupant controlled steering of a swinging axle.
124.117+, for a general utility wheeled land vehicle including a vertical pivot axis mounted axle or axle assembly having resilient, shock absorbing means. 137.5+, for a general utility wheeled land vehicle including a turnable axle lacking resilient, shock absorbing means.