Patents by Inventor RANDALL A. STEC

RANDALL A. STEC has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • FLEXIBLE TURBOCHARGER AIR DUCT WITH CONSTRICTING RINGS
    Publication number: 20170022946
    Abstract: A turbocharger system includes a flexible duct having an elongated elastomeric body extending longitudinally between first and second ends configured to attach to respective turbocharger devices. A plurality of constricting rings are spaced longitudinally between the ends. Each constricting ring applies a radial compression force around a respective circumference of the duct. Each ring is comprised of a molded thermoplastic retained in a concentric shape by a clasp. The spacing of the constricting rings has a density sufficient to limit a volume increase of the duct under turbocharger operating pressure to less than 20%. Each constricting ring has an inner surface including an intrusion feature providing a reduced compression force on the duct so that a portion of the duct enters the intrusion feature, thereby anchoring the constricting ring in a substantially fixed position.
    Type: Application
    Filed: October 10, 2016
    Publication date: January 26, 2017
    Inventors: RANDALL A. STEC, ROGER KHAMI, CHRISTOPHER B. BISHOP, ERIK H. HERMANN
  • Flexible turbocharger air duct with constricting rings
    Patent number: 9494113
    Abstract: A turbocharger system includes a flexible duct having an elongated elastomeric body extending longitudinally between first and second ends configured to attach to respective turbocharger devices. A plurality of constricting rings are spaced longitudinally between the ends. Each constricting ring applies a radial compression force around a respective circumference of the duct. Each ring is comprised of a molded thermoplastic retained in a concentric shape by a clasp. The spacing of the constricting rings has a density sufficient to limit a volume increase of the duct under turbocharger operating pressure to less than 20%.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: November 15, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Randall A. Stec, Roger Khami, Christopher B. Bishop, Erik H. Hermann
  • FLEXIBLE TURBOCHARGER AIR DUCT WITH CONSTRICTING RINGS
    Publication number: 20150176547
    Abstract: A turbocharger system includes a flexible duct having an elongated elastomeric body extending longitudinally between first and second ends configured to attach to respective turbocharger devices. A plurality of constricting rings are spaced longitudinally between the ends. Each constricting ring applies a radial compression force around a respective circumference of the duct. Each ring is comprised of a molded thermoplastic retained in a concentric shape by a clasp. The spacing of the constricting rings has a density sufficient to limit a volume increase of the duct under turbocharger operating pressure to less than 20%.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 25, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: RANDALL A. STEC, ROGER KHAMI, CHRISTOPHER B. BISHOP, ERIK H. HERMANN