By Cascading Material Evolving The Gas Patents (Class 266/151)
  • Patent number: 8617444
    Abstract: Equipment and methods for preparing curved fibers in a batch or continuous process. Fiber strands comprising a thermoplastic material are placed on a cylindrical surface and heated such that they soften and become malleable. The fiber strands assume the curvature of the cylindrical surface and, upon cooling below their softening temperature, retain the curvature. The curved-fiber strands are then cut to a desired length.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: December 31, 2013
    Assignee: Schlumberger Technology Corporation
    Inventor: GĂ©rard Daccord