US PATENT SUBCLASS 492 / 44
WITH HELICAL MEMBER
Current as of: June, 1999
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DEFINITION
Classification: 492/44
WITH HELICAL MEMBER:
(under the class definition) Roll which includes an element wrapped around the longitudinal axis of the roll in a cylindrical helix.
(1) Note. This subclass includes a cylindrical roll having a helically wound surface layer, the successive turns of which abut one another. See this class, subclass 35, for a roll having a helically wound surface layer the successive turns of which are spaced from one another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4+, for an inflatable roll which has a helical inflatable chamber such as a piece of tubing.
35, see (1) Note, above.
42, for this subject matter where the helical member is a strip spring or coil spring.
SEE OR SEARCH CLASS
15, Brushing, Scrubbing, and General Cleaning, 182, for a rotary brush or broom or for a broom with a head having spirally mounted bristles or other brushing or sweeping elements and subclass 225 for a wiper, dauber, or polisher having as a working face the edge of a strip of fabric coiled upon itself.
228, Metal Fusion Bonding,
145+, for a process of making a tube by helically winding a ribbon and bonding the melting side edges together.
