US PATENT SUBCLASS 174 / 50
BOXES AND HOUSINGS

Current as of: June, 1999
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174 /   HD   ELECTRICITY: CONDUCTORS AND INSULATORS

50BOXES AND HOUSINGS {4}
50.5  DF  .~> Hermetic sealed envelope type {9}
51  DF  .~> With grounding means
52.1  DF  .~> With electric device or mounting means therefor {5}
65 R  DF  .~> With conduit or cable opening, coupling means or hole closures {2}

DEFINITION

Classification: 174/50

(under the class definition) Boxes and housings limited by

claimed structure to electrical use, but having no claimed characteristics limiting the same to particular characters of electrical equipment classifiable in other main classes.

(1) Note. The mere naming of the electrical device housed will not exclude the same from this class, but where characteristics of the device housed are claimed, classification is with such device.

(1.5) Note. This and the indented subclasses include envelopes, casings, and housings such as are used for electric lamps, electric space discharge devices and similar electrical devices which are enclosed in vitreous, ceramic, nonmetallic plastic or metallic envelopes or casings. See section 7 of the class definition. See especially indented subclasses 50.5+ where the envelope, box or housing is hermetically sealed. In many of these devices the casing, housing or envelope is provided with lead-in wires or conductors for conducting electric current through the wall of the envelope, casing or housing.

(2) Note. See this class, subclass 8 and indented subclasses, for boxes and housings limited to use with fluids or vacuum, particularly subclasses 17 and 18.

(3) Note. See this class, subclass 37 and indented subclasses, for underground housings, and subclass 40 and indented subclasses, for overhead housings.

(4) Note. See this class, subclass 46, for housings in the form of handles. (5) Note. See this class, subclasses 48 and 49, for wall mounted housings.

(6) Note. See this class, subclasses 74 and 84 and their indented subclasses, for conduit, cable and conductor end structures and joints.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings),

220.1+, for building constructions with service duct not limited to electrical features.

109, Safes, Bank Protection, or a Related Device.

150, Purses, Wallets, and Protective Covers.

190, Trunks and Hand-Carried Luggage.

200, Electricity: Circuit Makers and Breakers,

168,.

206, Special Receptacle or Package. 215, Bottles and Jars.

217, Wooden Receptacles.

220, Receptacles,

2.1+, for envelopes or housings for electric lamps or similar devices where no electrical structure is claimed, subclasses 3.2+ for receptacles having provision for extending strands, rods, pipes, etc., through the receptacle wall or for coupling them to the receptacle wall.

248, Supports,

317, and 342+.

312, Supports: Cabinet Structure.

313, Electric Lamp and Discharge Devices, appropriate subclasses, for electric lamps and discharge devices which are provided with an envelope, box or casing where significant structure is claimed which limits the subject matter to use as an electrical lamp or electric space discharge device. See Section 7 of the class definition for the envelopes for lamps and discharge devices included in this class.

324, Electricity: Measuring and Testing,

156, for electric meter casings.

334, Tuners,

85, for an electrical tuner provided with housing means. 335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

278, for magnets and electromagnets with housings.

336, Inductor Devices,

90+, for transformers and inductive reactors in combination with a casing or housing.

337, Electricity: Electrothermally or Thermally Actuated Switches,

20, 34, 112, 121, 186+, 327+, 380+, 398, and 414+ for specific types of electrothermal and thermal operated switches with housing.

338, Electrical Resistors,

226+, for an incased, embedded, or housed fixed electrical resistor. For the lines between Class 174 and Class 338, see

the class definition of Class 338.

361, Electricity: Electrical Systems and Devices,

331+, for boxes, mounting and housing means with plural diverse electrical components. Even though a box or housing is claimed by name only in conjunction with said plural diverse electrical components, the patent is excluded from Class 174 and located only in Class 361.

362, Illumination, 362+,.

429, Chemistry: Electrical Current Producing Apparatus, Product, and Process,

158, 161, and 163 for battery receptacles having conductor structure.