US PATENT SUBCLASS 280 / 400
.~ Articulated vehicle

Current as of: June, 1999
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280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
400.~ Articulated vehicle {30}
401  DF  .~.~> Collapsible to superposed relation
402  DF  .~.~> Single end suspension of transported vehicle
403  DF  .~.~> With access between vehicles
404  DF  .~.~> Load separately supported on plural units (e.g., pole carrying type)
405.1  DF  .~.~> Load distribution adjustment {3}
408  DF  .~.~> With draft means at front and rear of same vehicle (e.g., vehicle train) {2}
411.1  DF  .~.~> Multiple trailing vehicles {1}
414.1  DF  .~.~> Boat carrying type {2}
414.5  DF  .~.~> With actuator for moving trailing vehicle wheel vertically
415.1  DF  .~.~> Convertible {4}
419  DF  .~.~> Interconnected steering of plural units
420  DF  .~.~> Service connections {2}
423.1  DF  .~.~> Semitrailer {7}
442  DF  .~.~> Wheel steering by articulative movement {1}
446.1  DF  .~.~> Condition responsive connections {4}
456.1  DF  .~.~> Plural or laterally adjustable connections {7}
472  DF  .~.~> Laterally offset {1}
474  DF  .~.~> Selectively rigid or flexible
475  DF  .~.~> With retractable ground support
476.1  DF  .~.~> Wheeled draft connection
477  DF  .~.~> Connection facilitating {1}
480  DF  .~.~> Tow ropes, chains, etc. {1}
481  DF  .~.~> Pusher type
482  DF  .~.~> Adjustable length draft devices
483  DF  .~.~> Resilient {4}
490.1  DF  .~.~> Vertically adjustable
491.1  DF  .~.~> Retractable, foldable, or knockdown {4}
492  DF  .~.~> Plural articulation axes {1}
495  DF  .~.~> Vehicle mounting or clamp {5}
504  DF  .~.~> Coupling {7}

DEFINITION

Classification: 280/400

(under subclass 29) Devices comprising either (1) a vehicle having a pivot, hinge or flexible section between body parts which are separately connected to flexibly joined or separate ground-engaging running gear units, or (2) a plurality of separate vehicles connected together in such manner as to permit relative motion between the vehicles and to permit a single source of draft (push or pull) to propel the vehicles as a unit.

(1) Note. Where the articulated vehicle is solely disclosed for use in an earth working or harvesting environment, the proper classification is in Class 172. No specific recitation in the claims of an earth working implement or harvester is necessary to cause an assignment in Class 172. Thus, where the articulative feature is disclosed solely in the performance of an earth working or harvesting operation, the body of art is not collected in Class 280.

(2) Note. This and indented subclasses take patents for devices wherein one of the units is an art device such as a dumping vehicle, such device being claimed by name only. Providing for the particular art devices is analogous to the line set forth in (1) Note above regarding the agricultural implement classes.

SEE OR SEARCH CLASS

56, Harvester,

6+, for ganged trailing harvesters. 172, Earth Working,

677+, and the subclasses there noted, for earth working apparatus with details of draft connection.

180, Motor Vehicles,

14.1+, for motor vehicle trains.

213, Railway Draft Appliances, for draft appliances between vehicles which travel on tracks.

244, Aeronautics,

3, for trains of aircraft.

267, Spring Devices,

115, for a fluid spring device useful in draft gear; and subclass 138 for a spring device, other than of the fluid spring type, for the same use.

403, Joints and Connections,

52+, for articulated members in general.

414, Material or Article Handling, 481, and 485 for a self-loading or unloading vehicle provided with a load receiving portion which is pivotable relative to the horizontal, and wherein the vehicle is of the trailer type.