(under subclass 518) Apparatus in which the rolling or rotating element comprises a generally circular platelike member of some specific structural configuration.
(1) Note. For classification under this definition a patent must have a claim which contains some detailed description of the platelike member. The detailed description may relate merely to the means for fastening the plate to a bearing structure provided such means is integral with the plate. A separate means for attachment to a bearing, or the bearing or support structure, per se, is not included under this definition. Thus, a patent with a claim reciting details of a bearing and with merely a board reference to a disk is not included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
557, for a disk with spokes.
599+, for disk gangs.
SEE OR SEARCH CLASS 111, Planting,
163+, for disk-type earth working tools claimed in combination with planting machines.
175, Boring or Penetrating the Earth,
373, for a disc cutter for a roller- type earth boring bit.
301, Land Vehicles: Wheels and Axles,
63, for vehicle wheels having the supporting portion between the hub and the rim formed of a continuous or a deformed disk member.
