Patents by Inventor Stephen Lak

Stephen Lak 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).

  • Method and apparatus for hydraulic clip and reset of engine brake systems utilizing lost motion
    Patent number: 6450144
    Abstract: An internal combustion engine may include a hydraulic linkage used to transfer motion from a valve train element, such as a cam, to an engine valve. Method and apparatus for selectively limiting the motion transferred by the hydraulic linkage from the valve train element to the engine valve are disclosed. The motion transferred by the hydraulic linkage may be limited by a means for resetting or clipping that is integrated into the rocker arm/shaft assembly provided in the valve train.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: September 17, 2002
    Assignee: Diesel Engine Retarders, Inc.
    Inventors: Robb Janak, Stephen Lak, Michael Bergmann
  • Method and apparatus for hydraulic clip and reset of engine brake systems utilizing lost motion
    Publication number: 20010027773
    Abstract: An internal combustion engine may include a hydraulic linkage used to transfer motion from a valve train element, such as a cam, to an engine valve. Method and apparatus for selectively limiting the motion transferred by the hydraulic linkage from the valve train element to the engine valve are disclosed. The motion transferred by the hydraulic linkage may be limited by a means for resetting or clipping that is integrated into the rocker arm/shaft assembly provided in the valve train.
    Type: Application
    Filed: December 20, 2000
    Publication date: October 11, 2001
    Inventors: Robb Janak, Stephen Lak, Michael Bergmann