US PATENT SUBCLASS 222 / 372
.~ With material supply container and discharge assistant with casing (e.g., supply container and pump)

Current as of: June, 1999
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222 /   HD   DISPENSING

251  DF  WITH DISCHARGE ASSISTANT (E.G., IMPELLER, PUMP, CONVEYER, MOVABLE TRAP CHAMBER, ETC.) {30}
372.~ With material supply container and discharge assistant with casing (e.g., supply container and pump) {10}
373  DF  .~.~> Fluid pressure discharge
375  DF  .~.~> With antileak or antisiphon means or full-stroke mechanism
376  DF  .~.~> With plural-point inlet to casing
377  DF  .~.~> Inlet trap (e.g., sump)
378  DF  .~.~> Aligned discharge assistant, actuator, container and nozzle
379  DF  .~.~> Telescopic outlet and/or discharge-assistant casing inlet
380  DF  .~.~> Valve outlet
381  DF  .~.~> Movable discharge assistant casing
382  DF  .~.~> Internally extending outlet pipe
383.1  DF  .~.~> Container-mounted pump {4}

DEFINITION

Classification: 222/372

(under subclass 251) Dispensers in which a supply container delivers to a casing which casing houses a discharge assistant (such as an impeller, piston, follower, etc.) which assists in discharge of material from the casing.

(1) Note. This subject matter occurs in many preceding subclasses in special embodiments or in other combinations.

(2) Note. In the subclasses following this group are patents for supply containers having discharge assistants (not associated with a casing) operating directly on the material in the supply container.

SEE OR SEARCH THIS CLASS, SUBCLASS:

95, where the supply container is of the collapsible wall type.

129+, where there are plural sources, compartments, or receptacles and/or a spaced jacket, where the additional compartment or receptacle is other than a casing which houses the discharge assistant and receives material from the source.

205, for combinations in which a supply container has a discharge assistant associated therewith for delivery of material to a trap chamber having no discharge assistant.

252+, and see the notes thereto for plural discharge assistants including those in which a discharge assistant is associated with the supply container to deliver material to the casing which houses a second discharge assistant.

320+, where a movable nozzle is connected to the discharge assistant in the casing.

324, where a handle for the combination is claimed.

335, where a source of supply under pressure (the pressure creating means not being claimed) operates a discharge assistant.

336, where the discharge assistant is biased to move by spring or other means.

SEE OR SEARCH CLASS

92, Expansible Chamber Devices, appropriate subclasses for an expansible chamber device comprising a piston and cylinder. See Lines With Other Classes and Within This Class, in the class definition of Class 92, under "SEARCH CLASS 222", for a statement of the line between Class 92 and Class 222.

137, Fluid Handling,

565.01+, for distribution systems including a pump.

169, Fire Extinguishers,

33, for portable fire extinguishers with pumps, 72+ for gas pressure vessels having discharge assistance. 184, Lubrication,

64+, for lubricators using pumps.

239, Fluid Sprinkling, Spraying, and Diffusing,

88+, 124+, 157, 319, and 329+ for combinations of pumps with spray apparatus or spray nozzles.

366, Agitating, particularly

196, for discharge effected by a stirrer, and subclasses 262+ for a pump type stirrer.

417, Pumps, for pump structure.

418, Rotary Expansible Chamber Devices, for rotary expansible chamber pumps.

604, Surgery,

131+, for pressure devices; subclasses 151+ for pumps and subclasses 218+ for pistons.