US PATENT SUBCLASS 222 / 251
WITH DISCHARGE ASSISTANT (E.G., IMPELLER, PUMP, CONVEYER, MOVABLE TRAP CHAMBER, ETC.)

Current as of: June, 1999
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222 /   HD   DISPENSING

251WITH DISCHARGE ASSISTANT (E.G., IMPELLER, PUMP, CONVEYER, MOVABLE TRAP CHAMBER, ETC.) {30}
252  DF  .~> Plural {9}
282  DF  .~> With discharge volume varying means {12}
318  DF  .~> With bypass or return to supply
319  DF  .~> Displacement type
320  DF  .~> With movable nozzle interconnected therewith {1}
322  DF  .~> Movable element actuator projection through outlet
323  DF  .~> With container handle or handgrip {1}
325  DF  .~> Insertable cartridge or removable container {1}
328  DF  .~> With material discharge guide on container side of discharge assistant
329  DF  .~> Removable or movable depending cups for rotors
330  DF  .~> With plural material outlets {1}
332  DF  .~> With vent passage for movable trap chamber
333  DF  .~> Motor operated {1}
335  DF  .~> Actuated by pressure of or suction on material to be dispensed
336  DF  .~> With biasing means for discharge assistant and/or its casing {3}
342  DF  .~> With scraper or wiper for or carried by discharge assistant
343  DF  .~> With retractable projections
344  DF  .~> Movable or conveyer-type trap chamber {9}
372  DF  .~> With material supply container and discharge assistant with casing (e.g., supply container and pump) {10}
386  DF  .~> Container with follower {8}
394  DF  .~> Fluid pressure {9}
403  DF  .~> Film accumulating type
404  DF  .~> Compound motions
405  DF  .~> Discharge of material from top of supply
406  DF  .~> Deformable discharging elements {1}
408  DF  .~> Conveyer type with deflector
408.5  DF  .~> Agitator rigidly mounted on movable closure
409  DF  .~> Reciprocating (including oscillating)
410  DF  .~> Rotary {3}
415  DF  .~> Endless belt

DEFINITION

Classification: 222/251

(under the class definition) Dispensers having one or more discharge assistants, as impellers, pumps, conveyors, or movable trap chambers, as defined in Lines With Other Classes and Within This Class, Discharge Assistants (e.g., Impellers, Pumps, Conveyors, Movable Trap Chambers, Etc.), in the main class definition.

(1) Note. Elements suspended in supply containers for movement by pressure of the material and/or gravity to prevent material bridging are in this subclass (251).

(2) Note. In subclass 416 siphons are considered as means to be excluded by the above definition.

(3) Note. Any preceding subclass may have the subject matter defined as going into this and the indented subclasses, in particular combinations hereinbefore provided for. Those considered worth special mention are set forth in notes to this and the indented subclasses. Also noted are those subclasses which follow this group that have subject matter sufficiently related to be specially mentioned.

(4) Note. See Lines With Other Classes and Within This Class, Pumps, for notes to related subject matter in other classes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3+, for gas or vapor dispensers and such dispensers combined with means to dispense liquids and solids, i.e., nongaseous materials. Where gases or vapors are used for the purpose of causing nongaseous materials to be dispensed but there are no means for dispensing the gases or vapors other than to the nongaseous material dispenser and/or venting the same, the patent is not in subclass 3, but in subclasses 251+ or other preceding subclass appropriate to the type of nongaseous material dispenser.

9+, for article dispensers.

80+, particularly subclass 82 for cutter and/or punch combinations.

92+, for combinations with a collapsible wall receptacle.

129+, where there are plural sources from which to dispense plural compartments or receptacles with means to dispense from at least one or a receptacle with a spaced jacket.

160+, where dispenser supply receptacle is mounted for motion.

173+, where a casing or support for the dispenser is claimed, particularly subclass 177 for combinations where a vehicle ground engaging wheel is interconnected with a discharge assistant to operate the same.

195, where a gas is used to agitate the material to be dispensed.

196+, where dispensing is aided by jarring dispenser parts or having vibrating dispenser parts.

204, where a siphon is combined with a nongravity discharge assistant.

206+, where one or more walls or portions thereof are resilient.

216+, where there is an agitator or ejector so related to (1) a conveyor type discharge assistant having trap chambers or grooves, or (2) a movable trap chamber, as to stir or otherwise help to dislodge material therein. 226+, for combinations of discharge assistants and/or movable trap chambers serially arranged, the first discharge assistant of the series to operate on the material dispensed being an agitator.

249+, for dispensers having a floating piston movable alternately in opposite directions to discharge material.

416, see (1) Note.

425, through 458, for nonmovable trap chambers.

464.1+, for dispensers comprising a container and internally extending outlet pipe so arranged that suction is necessary to cause discharge, no suction means being claimed.

491+, for dispenser outlets having movable elements (such as flow controllers, closures, nozzles, or other discharge guides) which are caused to move due to pressure of the material to be dispensed, the means for creating such pressure not being claimed.

576, and indented subclasses 577, 578+ and 583 for a dispensing inkwell including a discharge assistant.

630+, where a flowing fluid picks up and carries the material to be dispensed.

SEE OR SEARCH CLASS

65, Glass Manufacturing,

324+, for glass melt dispensing means including a discharge assistant. 137, Fluid Handling,

565.01+, for distribution systems comprising pumps.

221, Article Dispensing,

208+, for article dispensing devices having discharge assisting means.

401, Coating Implements With Material Supply,

143+, wherein the implement includes force-producing means for either filling the reservoir thereof or for moving material from the reservoir to the applying tool.

414, Material or Article Handling, appropriate subclasses (e.g., 209+, 304+, etc.) for a chamber, receptacle, or other load holder provided with a driven or nongravity type of material discharging means, and other appropriate subclasses (e.g., 216, 328+, etc.) for a chamber, receptacle, or other load holder which discharges material by gravity, and wherein a guide, gate, or other flow-affecting device is provided.