(under the class definition) Roll, which roll is made up of superposed rings having a common center.
(1) Note. Generally the layers or rings are joined or bonded together into a composite structure.
(2) Note. A patent claiming a roll merely by the composition of which it is made; i.e., with the roll being mentioned by name only, is classified in the composition classes where a composition class provides for such composition even though there is no claim to the composition, per se. See Class 106, Compositions: Coating or Plastic, main class definition for the classification of various compositions.
(3) Note. In this subclass, the annuli are radially of one another. For plural annuli axially of one another, see this class, subclasses 40+, and the notes thereto.
(4) Note. Many of the preceding subclasses include the subject matter of this subclass where one of the annular elements is of the nature indicated in the titles of these subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
40+, see (3) Note, above. SEE OR SEARCH CLASS
15, Brushing, Scrubbing, and General Cleaning,
181, for a rotary head brush or broom implement with the material forming the head arranged in layers.
106, Compositions: Coating or Plastic, see (2) Note, above.
138, Pipes and Tubular Conduits, for a laminated tubular project.
228, Metal Fusion Bonding,
145+, for a process of making a tube by helically winding a ribbon and bonding the melting edges together.
400, Typewriting Machines,
661+, for type impact-receiving platens composed of sound deadening materials, and subclass 662 for a platen having a particular surface characteristic.
428, Stock Material or Miscellaneous Articles,
364+, for a structurally defined or coated rod or strand that
