US PATENT SUBCLASS 222 / 52
AUTOMATIC CONTROL

Current as of: June, 1999
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222 /   HD   DISPENSING

52AUTOMATIC CONTROL {10}
53  DF  .~> Involving conveying conduit jacket and/or inert atmosphere (including vacuum) providing means
54  DF  .~> Temperature responsive or soluble controller
55  DF  .~> Constant weight, volume or pressure control by output
56  DF  .~> Delivery from source controlled by quantity in discharging receiver
57  DF  .~> By weight, volume or pressure of a second dispensed material
58  DF  .~> By the weight of the material in the supply container
59  DF  .~> Cutoff operated by rate of flow responsive mechanism {1}
61  DF  .~> Of dispensers with fluid pressure discharge assistance {1}
63  DF  .~> Motor control
64  DF  .~> Material level control {3}

DEFINITION

Classification: 222/52

(under the class definition) Dispensers having means to sense some condition, which means causes operation of a control device.

(1) Note. The above definition excludes valves, closures, and nozzles, directly operated by the pressure or flow of the material (e.g., check valves), or by gravity or inertia. See the following notes.

(2) Note. Automatic controls are associated with subject matter of most of the classes. Only those will be set forth in the notes to this and the indented subclasses which appear most nearly related to the combinations of this class.

SEE OR SEARCH THIS CLASS, SUBCLASS:

14+, for cutoffs operated by selectively preset volume or rate of flow mechanism.

23+, for automatic controls where a recorder, register, indicator, signal or exhibitor is claimed.

332, 375, 380, 387, 396, 400, 490, and 491+, for various combinations including valves, closures, and movable nozzles directly operated by the pressure or flow of material. 353, 437, 457, and 479, for barometric and angle of repose devices in various combinations.

500, for gravity and inertial operated closures and valves.

SEE OR SEARCH CLASS

4, Baths, Closets, Sinks, and Spittoons, appropriate subclasses for automatic controls associated with the subject matter of such class. It is noted that this class includes such dispensing, per se, for the special purposes of the class (4).

34, Drying and Gas or Vapor Contact With Solids,

524+, particularly subclasses 573+, for automatic controls for the subject matter of such class.

118, Coating Apparatus,

663+, for coating apparatus having automatic control features.

119, Animal Husbandry, appropriate subclasses. Many of the devices in this class, particularly in

51+, and 72+ are dispensers, per se, for the special purposes of this class.

122, Liquid Heaters and Vaporizers, 446, 458 and 504+.

137, Fluid Handling,

38+, for control by change of position or inertia of the system; subclasses 47+ for speed responsive valve control; subclasses 59+ for freeze condition responsive safety systems; subclasses 65+ for combustion failure responsive fuel safety cutoffs; subclasses 67+ for destructible or deformable element control; subclasses 78.1+ for atmospheric change responsive control; subclasses 82+ for pressure modulators, relays or followers; subclasses 87.01+ for self-proportioning or correlating systems; subclasses 386+ for liquid level responsive or maintaining systems; and subclasses 455+ for line condition change responsive valves, including safety cut-off, pop, pressure regulating and directly responding safety and check valves.

141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

192+, for filling apparatus having automatic control of flow cut-off or diversion of material to the receiver.

159, Concentrating Evaporators,

44, for automatic fluid feed and discharge devices.

169, Fire Extinguishers,

7+, for automatic chemical pressure generating systems, subclasses 19+ for automatic valves, 26+ for automatic receptacles, 56+ for condition responsive control for special applications.

177, Weighing Scales,

60+, for material control responsive to a weigh chamber. 184, Lubrication,

66+, for gravity feed lubricators with automatic cutoff.

192, Clutches and Power-Stop Control,

116.5+, for automatic stop mechanism.

198, Conveyors: Power-Driven, appropriate subclasses for different types of conveyors or systems of plural conveyors having operation control means responsive to a condition of a conveyor or to a condition of the conveyed load.

209, Classifying, Separating, and Assorting Solids,

509+, for automatic assorting, subclasses 491 and 496, for automatic control of discharging.

210, Liquid Purification or Separation,

97+, for fluid pressure, flow or material level responsive devices which may include material feed controls, particularly subclass 101.

217, Wooden Receptacles,

100+, for automatic valved bungs.

221, Article Dispensing, 9+, for article dispensing devices not otherwise provided for, having automatic control means.

235, Registers,

379, 380, 381, and 383 for banking and credit card systems and mechanized stores, respectively, wherein either money or merchandise is released upon the sensing of a valid credit card and including means to debit the account of the individual receiving the money or merchandise.

241, Solid Material Comminution or Disintegration,

34+, for automatic feed controls associated with comminutors.

251, Valves and Valve Actuation,

15+, for valves having a compulsory cut-off after a flow period initiated automatically.

414, Material or Article Handling, appropriate subclasses (e.g., 161, 270, 294+, 307, 315+, etc.) for a chamber or receptacle and material charging or discharging means therefor, and wherein the means is responsive to a condition of the chamber/receptacle, the material or the means.