(under subclass 446) Process wherein the distorted part is long in relation to its cross-section, all of its cross-section dimensions are of the same order, and the part is tensioned along its length.
SEE OR SEARCH CLASS
52, Static Structures (e.g., Buildings),
223.1+, for a prestressed building structure.
242, Winding, Tensioning, or Guiding, for winding flexible material under tension. Search
438+, for a process or apparatus for making of an article by winding.
254, Implements or Apparatus for Applying Pushing or Pulling Force,
29, for a tie rod for use in stressing or prestressing. 264, Plastic and Nonmetallic Article Shaping or Treating: Processes, for prestressing a steel reinforcement means combined with molding nonmetallic material thereabout.
