(under the class definition) Device comprising an annular sleeve to line an opening which extends through the interior of a structure to (a) prevent the abrasion of any elements passing through the opening or the structure itself or (b) fortify the opening.
(1) Note. The device of this subclass may have any of a variety of means for fastening it to the wall of the opening such as a weld or a compression ring. The opening may be the end of a pipe or other conduit.
(2) Note. In a claim proper for this subclass as much of the device having the opening (e.g., pipe) may be included as is necessary to define the bushing.
(3) Note. A grommet is considered appropriate for this subclass since it includes structure that extends through an opening having a substantially planar exterior surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2.2, for a bushing with a sealing means 2.3, for a bung or tap bushing
SEE OR SEARCH CLASS
12, Boot and Shoe Making, for a bushing used during the manufacture of shoes.
24, Buckles, Buttons, Clasps, etc., for subject matter claiming interfitting fasteners, where one is embedded in the structure and intending to receive the other.
174, Electricity: Conductors and Insulators, especially
83, for a bushing limited by structure for use with an electric conduits or cables, subclass 136 for anti-abrasion devices, subclasses 152+ for wall mounted insulators of the bushing type, and subclasses 153+, 154+, and 167 for other bushing insulators
217, Wooden Receptacles,
98+, for a bung and particularly subclass 113 for a bushing combined with a bung.
226, Advancing Material of Indeterminate Length, may include a nominal recitation of a supply or take-up coil (e.g., less than a support for such a coil or a cooperative relationship between a tension or exhaust detector and reel driving or reel stopping means, etc.),
196.1, for a passive guide combined with a material feeder.
242, Winding, Tensioning, or Guiding,
615+, for a residual guide or guard that directs elongated flexible material or one combined with more than nominal winding structure. 250, Radiant Energy,
466.1+, for self luminous sources or attachments therefor and subclasses 483.1+ for fluorescent and phosphorescent plates and escutcheons.
285, Pipe Joints or Couplings,
130, and 213 for a bushing or lining for an opening intended to receive a pipe.
384, Bearings,
276+, for a sleeve or liner intended to serve as a bearing.
408, Cutting by use of Rotating Axially Moving Tool,
241, for a bushing used to guide a drill bit.
439, Electrical Connectors, especially
207+, for an electrical connector combined with a conduit which may include a bushing.
