US PATENT SUBCLASS 414 / 592
ELEVATOR OR HOIST AND LOADING OR UNLOADING MEANS THEREFOR

Current as of: June, 1999
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414 /   HD   MATERIAL OR ARTICLE HANDLING

592ELEVATOR OR HOIST AND LOADING OR UNLOADING MEANS THEREFOR {16}
593  DF  .~> Mail
594  DF  .~> Load lowering, automatic return
595  DF  .~> Inclined track {4}
606  DF  .~> Magnet and grab
607  DF  .~> Convertible attachment
608  DF  .~> Separable rack
609  DF  .~> With external cooperating movable feeding or discharging means {2}
618  DF  .~> Grab {4}
628  DF  .~> Elevator wherein means comprises guide mounted for relative movement, and tiltable carrier thereon {1}
630  DF  .~> Elevator wherein means comprises guide mounted for relative movement {2}
639  DF  .~> Tilting carrier {7}
657  DF  .~> Valved {1}
659  DF  .~> Comprising device on carrier to move or carry load laterally thereto or therefrom {2}
662  DF  .~> Comprising means enabling additional movement of carrier or portion thereof relative to its support {3}
673  DF  .~> Return, buffer, or counterweight feature
674  DF  .~> Automatic stop

DEFINITION

Classification: 414/592

ELEVATOR OR HOIST AND LOADING OR UNLOADING MEANS THEREFOR:

(under the class definition) Apparatus comprising a ground-, structure-, vehicle-, or otherwise-supported elevator or hoist for raising or lowering a load, the load being raised, etc., on a load carrier (or, as sometimes identified herein, a carrier) in the form of a bucket, cage, car, grapple, hook, lifting fork, platform, etc., which load carrier moves in a vertical or inclined path, and a means for loading or unloading the carrier or for facilitating the loading or unloading thereof.

(1) Note. A significant difference between an elevator and a hoist is that the former includes structure for guiding its load carrier.

(2) Note. This subclass and subclass 95 of former Class 214, previously included the limitation "self" (as applied to the loading or unloading means) in its title. While a significant portion of the art may meet such a limitation, the art seen in the reclassification of this subclass and those indented subclasses formerly numbered 660 (now 628+), 670-674 (now 630+), 701 (now 640+), and 730, 731 (now 662+), as well as that seen in newly developed subclasses 659+, indicated that the limitation could not be retained.

(3) Note. In the reclassification of the subclasses mentioned in (2) Note, it appeared appropriate, except in the case of subclasses 659+, to distinguish those elevators or hoists which claimed portability (e.g.,., vehicle-mounted) from those which did not; however, it is pointed out that, (a) the art in the new "portability" subclasses has not been screened against the vehicular areas of the class, and (b) the establishment of the "portability" subclasses does not mean that there are not patents to vehicle-mounted elevators or hoists in other, non-reclassified subclasses which depend from subclass 592.

(4) Note. The line between a material handling device proper for this Class (414) and an elevator or industrial lift truck proper for Class 187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle, is as follows: (a) Class 414 provides for load engaging structure in which the load support surface travels in a generally vertical primary lift direction and (1) is mounted for movement in a direction other than the primary lifting direction (e.g.,., tilting) or (2) has an additional load handling structure (e.g.,., conveyor) or (3) is constructed in such a manner that the load support surface is inherently self-charged or self-discharged along the primary lift direction; and (b) Class 187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle, provides for industrial lift trucks or components thereof when the load is shifted in its entirety in a primary lifting direction from one level to another vertically spaced level and may additionally include (1) mere pivoting or tilting of the load supporting structure for

detachment or storage or (2) retaining of a received load on the support surface.

SEE OR SEARCH THIS CLASS, SUBCLASS: 143.1, for ship charging or discharging apparatus in the nature of a hoist line bucket.

191, for the charging of a chamber utilized for a heating function by means of a driven device for transporting material to and/or into, or into and within, the chamber and wherein the device comprises a traversing hoist having either a material underlying support or a material attracting and gripping means.

246, 247+, 249+, 260, and 264, for a vertically moving vehicle carrier, which carrier is adapted for charging or discharging a facility for the parking of wheeled vehicles.

281, for a means for charging or discharging plural, static structures, and wherein the means includes a portable elevating device having a load-sustaining surface.

364+, for the combination of a pivotably or tiltably movable structure for supporting a wheeled, load-transporting type vehicle and reorient-the vehicle into a load-releasing attitude, and the vehicle being loaded thereby, and wherein the axis of pivot or tilt of the structure is vertically shiftable (e.g.,., by means in the nature of an elevator or hoist).

385, for the combination of a device external of a wheeled, load-transporting type vehicle for raising one end of the vehicle to promote movement of a load therefrom by gravity, and the vehicle being unloaded thereby.

391+, for the combination of a driven device external of a wheeled, load-transporting type vehicle for raising or lowering a load which is to be taken from the vehicle, and the vehicle being unloaded thereby.

399, for the combination of a device external of a wheeled, load-transporting type vehicle for raising or lowering a load which is to be moved to the vehicle, and the vehicle being loaded thereby.

422+, for a receptacle emptying device of an elevator type.

427, for a wheel and wheel type article handler and transporter having a wheel engaging means of an elevator type.

441, for a motion responsive load handler and transporter, wherein the handler is operated by a ground-engaging wheel and is guided for rectilinear movement in a vertical or inclined path. 458+, for a vehicle having load handling means in the nature of spaced, shelf-like load engaging portions, which portions engage the load from opposite sides and elevate it for transport.

460+, for a vehicle which straddles a load and elevates it.

471, for a self-loading or unloading vehicle having a load-receiving portion which is pivotable relative to the horizontal and wherein means is provided for also raising or lowering the portion and its axis of pivot.

486+, for a self-loading or unloading vehicle having a load receiving portion which is pivotable relative to the horizontal and wherein the vehicle has means to raise a load above said portion for deposit thereon or therein.

495+, for a self-loading or unloading vehicle having a load-receiving portion which is movable in a vertical or inclined path. While that area (495+) does not exclude a vehicle-mounted elevator (e.g.,., an industrial truck), the placement of the art (in former Class 214) appears to have evolved in such a manner that a truck of the "roadway" type was considered proper for classification there (495+), whereas a truck of the industrial type was more likely to be classified here (592+) -- in spite of the fact that this area has not, in the past, provided recognition for the vehicular aspect of such a truck.

540+, for a self-loading or unloading vehicle having a load-handling means which raises or lowers a load in a path which includes vertical rectilinear movement.

564, for a combination of carriers, at least one of which is an elevator or hoist and another is an endless or rotary carrier.

582+, for a device for raising one end of a vehicle relative to the other end thereof in order to place the vehicle in an attitude whereby it will unload under the influence of gravity.

589+, for a load support which moves linearly in a vertical direction and has additional movement for aligning and mounting its load.

814, for a process of charging or discharging an elevator or hoist and loading or unloading means therefor.

SEE OR SEARCH CLASS

37, Excavating, 398+, for a scoop or bucket having separate lines to load and hoist.

89, Ordnance,

46, for ordnance hoisting apparatus.

186, Merchandising,

51, and 22+ for a service type elevator for a dining room or store, respectively.

187, Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle, appropriate subclasses for an industrial lift truck or elevator having load handling means. (see above line note for distinction).