Patents Assigned to Vicious Cycle Performance, Inc.
  • Exhaust silencer system
    Patent number: 6868939
    Abstract: An improved exhaust system for an internal combustion engine generally comprises two expanding megaphones, separated by a dual core annular flow silencing section. The two or split megaphone design facilitates broadening of the time of the negative pressure wave to provide a desirable broad range power output while substantially reducing obnoxious sound output.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: March 22, 2005
    Assignee: Vicious Cycle Performance, Inc.
    Inventor: John C. Ziehl
  • Motor vehicle exhaust tip
    Patent number: D495982
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: September 14, 2004
    Assignee: Vicious Cycle Performance, Inc.
    Inventor: John C. Ziehl