Patents by Inventor Jeffrey P. Calfa

Jeffrey P. Calfa 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).

  • Engine endless drive belt tensioner and tensioner position indicator
    Patent number: 6849011
    Abstract: Engine accessory drive belt tension is maintained by a spring loaded roller positioned to impinge against the belt. Belt deflection is reflected by changes in position of the roller, and measured by a deflection sensor. Changes in deflection may indicate changes in belt elasticity, indicating the possible need to change the belt.
    Type: Grant
    Filed: November 23, 2002
    Date of Patent: February 1, 2005
    Assignee: International Truck Intellectual Property Company, LLC
    Inventors: Jeffrey P. Calfa, Alan H. Manara
  • Engine endless drive belt tensioner and tensioner position indicator
    Publication number: 20040102272
    Abstract: Engine accessory drive belt tension is maintained by a spring loaded roller positioned to impinge against the belt. Belt deflection is reflected by changes in position of the roller, and measured by a deflection sensor. Changes in deflection may indicate changes in belt elasticity, indicating the possible need to change the belt.
    Type: Application
    Filed: November 23, 2002
    Publication date: May 27, 2004
    Inventors: Jeffrey P. Calfa, Alan H. Manara