US PATENT SUBCLASS 174 / 152 R
.~.~ Bushing type

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


174 /   HD   ELECTRICITY: CONDUCTORS AND INSULATORS

137 R  DF  INSULATORS {17}
151  DF  .~ Through wall or plate {1}
152 R.~.~ Bushing type {6}
153 R  DF  .~.~.~> Opposed wall engaging means {2}
152 A  DF  .~.~.~> Antennas
152 E  DF  .~.~.~> Electric space discharge device
152 S  DF  .~.~.~> Spark plugs
152 G  DF  .~.~.~> Grommets or tubes
152 GM  DF  .~.~.~> Glass-to-metal seal

Unofficial Alpha Subclasses: R A E S G GM

DEFINITION

Classification: 174/152

(under subclass 151) Devices in which a portion of the insulating element extends into the opening in the wall or plate.

(1) Note. Class 174 provides for portions of a complete electrical bushing when there is no provision for the claimed subject matter in any other class (e.g., only electrical bushing structure of a spark plug, a lead-in wire of an electrical bushing as an electrode or center electrode, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

74+, for an insulating bushing limited by structure to use with the end structure of a conduit, cable, or conductor,

especially subclass 83 for conduit-end lining thimbles.

138, for an insulated rod joint.

154+, for tubular or spool-type insulator mounted in a supporting bracket or holder. SEE OR SEARCH CLASS

16, Miscellaneous Hardware,

2+, for a bushing or lining thimble not limited to use with electric conductors.

220, Receptacles,

3.5+, for wall, floor, or panel mounted outlet or junction boxes.

248, Supports,

27.1+, for an instrument mounted in a panel and subclasses 56+ for a pipe or cable extending through a plate.

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

606, for a static seal for a pipe, conduit, or cable, and a wall, subclass 919 for a seal including an electrical feature.

285, Pipe Joints or Couplings,

189+, for a pipe and plate joint.

313, Electric Lamp and Discharge Devices, 118+, for a spark plug having a bushing including a ground electrode point and an insulated electrode point.

362, Illumination,

456, for plates for mounting lenses.

403, Joints and Connections,

230+, for a rod end transverse to a side or plate.

439, Electrical Connectors,

571+, for an electrical connector mounted or attached to a wall, plate, or panel.