US PATENT SUBCLASS 264 / 288.4
.~.~ Stretching by applying tension

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

239  DF  MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE {10}
280  DF  .~ Reshaping running or indefinite-length work {5}
288.4.~.~ Stretching by applying tension {5}
288.8  DF  .~.~.~> Nonuniform product (e.g., porous, etc.) or with tensioning before application of heat
289.3  DF  .~.~.~> With treatment other than heating before stretching
289.6  DF  .~.~.~> With shrinking or with liquid contact during or after stretching
290.2  DF  .~.~.~> Biaxial or transverse to travel direction
290.5  DF  .~.~.~> Of filament {1}

DEFINITION

Classification: 264/288.4

Stretching by applying tension:

(under subclass 280) Process in which the reshaping is performed by pulling an end or edge of the workpiece and the workpiece is elongated in the direction of the tension application.

(1) Note. Tension applied merely to hold the work extended or taut is not considered to be within the scope of this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

210.1+, for stretching combined with extrusion.

291+, for stretching or stretch forming, per se, applied to other than running or indefinite-length work.

500+, for processs where reshaping uses fluid pressure, e.g.,

blowing, etc.

555+, for reshaping running length work by such a procedure. SEE OR SEARCH CLASS

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

229, for stretching combined with a laminating step.

427, Coating Processes,

172+, for a process of coating running or indefinite-length work combined with stretching or tensioning.