(under subclass 165) Processes in which the continuous product is produced from an unformed mass which is forced between a pair of coacting, continuously moving surfaces.
(1) Note. Included herein, for example, is shaping a mass by passing it between a pair of rolls, a roll and an endless belt or a pair of endless belts.
(2) Note. Where the patent discloses calendering of a previously formed indefinite length article, e.g., altering the thickness thereof by passing through pressure rolls, the patent will not be placed herein, since such an operation is considered to be a reshaping rather than an actual forming of a continuous or indefinite length article, see the search notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
77, for calendering which produces a random variegated coloring effect.
212+, for casting of materials on a solid shaping surface in which a doctor knife may be employed for smoothing the upper surface of or regulating the thickness of the cast article.
280+, for mechanical shaping or molding of running or indefinite length work, per se.
