U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
[Manual of Classification, Class Listing] [Manual of Classification, Class 298] [Classification Definitions, Class Listing] [USPTO Home Page]

U.S. Patent Classification System - Classification Definitions
as of June 30, 2000

[Explanation of Data]

Patents classified in a subclass may be accessed by either clicking on the subclass number
preceding each subclass definition or on the " [Patents] " icon, below.
( please note that patents for some subclasses may not be available )

For classification search strategies, please refer to the Classification Index Explanation of Data web page.

(definitions have been obtained from the Patents ASSIST CD-ROM which is produced by the U.S. Patent and Trademark Office Electronic Products Branch)


Class 298

LAND VEHICLES: DUMPING


Class Definition:
Vehicles other than track or rail vehicles and commonly known as dumping-wagons, dump-carts, dumping-sleighs, dumping-barrows, chute-wagons, etc., adapted for carrying a freight-load and so constructed and arranged that by manipulation of the whole or a part of the vehicle the load or some considerable part thereof will move by gravity to unload the vehicle.

LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
For dump-cars see Class 105, Railway Rolling Stock, subclass 239, and indented subclasses.
For a self-loading or unloading vehicle having a load receiving portion which is pivotable relative to the horizontal, see Class 414, Material Article Handling, subclasses 469+, and see especially the search note to this class (298) which appears in subclass 469.
For a device for emptying a portable receptacle, see Class 414, Material or Article Handling, subclasses 403+, and see particularly indented subclasses 419+.

REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:
49, Movable or Removable Closures, appropriate subclasses, for closures of the type provided for and see the search notes thereto in section IV for the loci of closures in other classes.
222, Dispensing, appropriate subclasses, for other dispensing devices.
280, Land Vehicles, subclass 47.17 for handle-propelled tiltable vehicles, and see the search note under indented subclass 47.26 referring to Class 298.


SUBCLASSES


Subclass: 1 [Patents]

Patents falling within this class and not properly classifiable in other subclasses thereof.

Subclass: 2 [Patents]

Specially adapted to be propelled by hand.

Subclass: 3 [Patents]

Mounted on one wheel.

Subclass: 4 [Patents]

Supported on runners.

Subclass: 5 [Patents]

Dumping-vehicles of all types mounted on two wheels.

Subclass: 6 [Patents]

Those of the type indicated where means is provided to operate an end-gate or cover through the dumping operation of the vehicle or means for doing so manually where such means is located at a distance from the end-gate or cover.

Subclass: 7 [Patents]

Dumping-vehicles of any type having some modification of the vehicle to adapt a delivery chute thereto or some combined structure of the vehicle and delivery-chute.

SEE OR SEARCH CLASS:
193, Conveyors, Chutes, Skids, Guides, and Ways, subclasses
4+ for chutes, per se,

Subclass: 8 [Patents]

Dumping-vehicles of any type where the load is divided into separate units and can be separately dumped, excepting that a tiltable load-receptacle having removable partitions is not included, but is found in other subclasses of this class under proper type.

Subclass: 9 [Patents]

This subclass is indented under the class definition. Dumping vehicles in which the load-receptacle is rotatable about a vertical axis prior to, during or after tilting thereof.

Subclass: 10 [Patents]

Those in which the load-receptacle rotates about a fixed pivot to turn the load out of the open top of the receptacle.

Subclass: 11 [Patents]

Where the load-receptacle is tilted to permit the load to slide off the bottom of the receptacle, there being also an elevation of the load-receptacle as a whole.

SEE OR SEARCH CLASS:
414, Material or Article Handling, subclasses 697+, for material moving devices with a vertical swinging load support of the tilting shovel or fork type.

Subclass: 12 [Patents]

This subclass is indented under the class definition. Dumping vehicles in which the load-receptacle as a whole is movable in a horizontal or downwardly inclined direction prior to, during or after tilting thereof.

Subclass: 13 [Patents]

Those of the type indicated where the load is dumped at the side of the vehicle.

Subclass: 14 [Patents]

Provided with additional means for effecting any of the movements of the load-receptacle, either to dump the load or return the receptacle to its load-carrying position, or both.

Subclass: 15 [Patents]

Where the operation is effected by a movement of the vehicle as a whole or through the movement of some substantial part thereof.

Subclass: 16 [Patents]

Operated by the power plant that propels the vehicle.

Subclass: 17 [Patents]

Where the load-receptacle is capable of assuming an inclined or tilted position to permit the load to slide off the inclined bottom of the receptacle.

SEE OR SEARCH CLASS:
222, Dispensing, subclass 166.

Subclass: 17.5 [Patents]

This subclass is indented under subclass 17. Devices in which the load-receptacle is (1) selectively tiltable about at least one of a plurality of pivot axes or (2) tiltable about an axis which progressively changes concurrently with the tilting (e.g., rocking support).

Subclass: 17.6 [Patents]

This subclass is indented under subclass 17.5. Devices in which the load-receptacle is optionally tiltable in a selected one of a plurality of different directions (e.g., towards either side).

Subclass: 17.7 [Patents]

This subclass is indented under subclass 17.6. Devices in which the load-receptacle is optionally tiltable to either an end or a side.

Subclass: 17.8 [Patents]

This subclass is indented under subclass 17.6. Devices wherein the pivot axis about which the load-receptacle is tilted, during at least one tilting cycle, sequentially moves from one to another of a plurality of fulcrum points, (e.g., rocking support).

Subclass: 18 [Patents]

Where the load is dumped at the side of the vehicle.

Subclass: 19 [Patents]

Provided with additional means for effecting the tilting of the load-receptacle or returning it to its load-carrying position, or both.

Subclass: 20 [Patents]

Where the operation is effected by a movement of the vehicle as a whole or through the movement of some substantial part thereof.

Subclass: 21 [Patents]

Operated by the power plant that propels the vehicle.

Subclass: 22 [Patents]

Provided with fluid-pressure operators.

Subclass: 23 [Patents]

Those of the type indicated where means is provided to operate an end-gate or cover through the dumping operation of the vehicle or means for doing so manually where such means is located at a distance from the end-gate or cover.

Subclass: 24 [Patents]

Consisting of a box-container having a movable part or parts adapted, when moved, to permit the load to fall by gravity.

SEE OR SEARCH CLASS:
222, Dispensing, particularly subclass 476, et seq.

Subclass: 25 [Patents]

Consisting of sections pivoted together.

SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 29+

Subclass: 26 [Patents]

Where the bottom as a whole is pivoted to tilt to permit the load to slide by gravity.

SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 29+ where the bottom is divided and each section is pivoted.

Subclass: 27 [Patents]

Where the bottom of the load-receptacle can be opened to permit the load to drop by gravity to a position under the
vehicle.

Subclass: 28 [Patents]

The load-receptacle is provided with the removable part or parts indicated.

Subclass: 29 [Patents]

Where the bottom of the load-carrier consists of a door or doors hinged to open and permit the load to drop.

SEE OR SEARCH THIS CLASS, SUBCLASS:
25

Subclass: 30 [Patents]

Where the hinge extends transversely of the vehicle only.

Subclass: 31 [Patents]

Where the hinge extends longitudinally of the vehicle only.

Subclass: 32 [Patents]

Having a plurality of doors so hinged that they swing parallel to each other.

Subclass: 33 [Patents]

So hinged that the doors swing in opposite directions.

Subclass: 34 [Patents]

Swinging in opposite directions and toward a median of the vehicle in dropping the load.

Subclass: 35 [Patents]

Swinging in opposite directions and toward the outside of the
vehicle to drop the load.

Subclass: 36 [Patents]

Also movable in a vertical direction.

Subclass: 37 [Patents]

Those of the type indicated having a single door-closing operator so constructed that all the doors are tightly closed. Such devices also permit the closing of one door in advance of another.

Subclass: 38 [Patents]

Holding devices adapted to releasably hold a movable part of a dump-wagon in its normal or load-carrying position.

SEE OR SEARCH CLASS:
292, Closure Fasteners, for closure-fasteners of general utility.


Information Products Division -- Contacts

Questions regarding this report should be directed to:

U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov


[Top] [Manual of Classification, Class Listing] [Manual of Classification, Class 298] [Classification Definitions, Class Listing] [USPTO Home Page]

Last Modified: 6 October 2000