US PATENT SUBCLASS 174 / 35 R
.~ Shielded or screened

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

32  DF  ANTI-INDUCTIVE STRUCTURES {2}
35 R.~ Shielded or screened {7}
36  DF  .~.~> Conductor only
35 C  DF  .~.~> Connectors and joints
35 SM  DF  .~.~> Spark plugs, manifolds
35 GC  DF  .~.~> Gaskets, covers
35 CE  DF  .~.~> Coils, anti-eddy-current
35 MS  DF  .~.~> Materials, stock and screen rooms
35 TS  DF  .~.~> Radio tube shields

Unofficial Alpha Subclasses: R C SM GC CE MS TS

DEFINITION

Classification: 174/35

(under subclass 32) Means in which an electrical shield is used. Shields or screens, per se, not classifiable in other main classes, are here.

(1) Note. Box and housing structures having added means for insuring good electrical contact between the body and closure, body and conduit, or cable sheath is in this and indented subclasses.

(2) Note. See sections 1 and 7 of the Class Definition for limits to a combination of an envelope, box or housing such as are used for electric lamps, electric space discharge devices, and similar devices and an electrical shield and for such envelopes, boxes and housings which include an electric shielding means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50+, for a mere box or housing structure that may include conductive material or have shielding properties.

SEE OR SEARCH CLASS 66, Textiles: Knitting,

202, for fabrics or articles involving selection of strands of a peculiar nature.

123, Internal-Combustion Engines,

146.5+, for shielded internal combustion engine ignition systems.

139, Textiles: Weaving,

425, for metal being used in the texture of the fabric.

245, Wire Fabrics and Structure.

277, Seal for a Joint or Juncture, for a generic sealing means or process,

919, for a seal including an electrical feature or subclass 920 for a seal including an electromagnetic shielding feature.

313, Electric Lamp and Discharge Devices,

313, for an electrical shield or static charge distribution means, especially the Search Notes thereto for electric lamps and space discharge devices that are provided with shields or screens for the lamp or discharge device or some part thereof, and subclasses 326+ for the structure of shields which are limited by claimed subject matter to use with electric lamps or electric space discharge devices.

315, Electric Lamp and Discharge Devices: Systems, 85, for an electric current and/or voltage supply system for an electric lamp and/or electric space discharge device of the gas or vapor ionization type, having radiation shielding means for the system.

330, Amplifiers,

68, for a shielding means involving structure other than that of transformers per se and subclass 170 for a shielding means for interstage transformer coupling.

334, Tuners,

85, for electrical tuners provided with shielding means.

336, Inductor Devices,

84+, for transformers and inductive reactors in combination with an electric or magnetic shielding means.

343, Communications: Radio Wave Antennas,

841+, for antennas with an electrical shield; subclass 851 for antennas with a coupling network which may be shielded for radiation suppression; and subclass 905 for antennas combined with a transmission line which may be shielded.

439, Electrical Connectors,

607+, for an electrical connector having or providing an inductive or capacitive shield. 455, Telecommunications,

300+, for shielded radio receivers.