Patents by Inventor James A. Niemeier

James A. Niemeier 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).

  • Patent number: 6755167
    Abstract: A two-step roller finger follower including an elongate body having side walls defining coaxially disposed shaft orifices, a pallet end and a socket end interconnecting with the side walls to define a slider arm aperture, and a latch channel. The socket end is mountable to an hydraulic lash adjuster, and the pallet end is matable with a valve stem. A slider arm for engaging a high-lift cam lobe is disposed in the slider arm aperture and has a first end pivotably mounted to the pallet end of the body and the second end forming a slider tip for engaging an activation/deactivation latch. The latch is slidably disposed in the latch channel, and the latch has a nose section for selectively engaging the slider tip. A spool-shaped roller having first and second roller elements fixedly attached to the shaft is rotatably disposed in the shaft orifices, the roller being adapted to follow the surface motion of low-lift cam lobes.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: June 29, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: John J. Krieg, Timothy W. Kunz, Nick J. Hendriksma, Wayne S. Harris, James A. Niemeier, Jongmin Lee, Hermes Fernandez, Joseph F. Girtler
  • Publication number: 20030159666
    Abstract: A two-step roller finger follower including an elongate body having side walls defining coaxially disposed shaft orifices, a pallet end and a socket end interconnecting with the side walls to define a slider arm aperture, and a latch channel. The socket end is mountable to an hydraulic lash adjuster, and the pallet end is matable with a valve stem. A slider arm for engaging a high-lift cam lobe is disposed in the slider arm aperture and has a first end pivotably mounted to the pallet end of the body and the second end forming a slider tip for engaging an activation/deactivation latch. The latch is slidably disposed in the latch channel, and the latch has a nose section for selectively engaging the slider tip. A spool-shaped roller having first and second roller elements fixedly attached to the shaft is rotatably disposed in the shaft orifices, the roller being adapted to follow the surface motion of low-lift cam lobes.
    Type: Application
    Filed: November 27, 2002
    Publication date: August 28, 2003
    Inventors: John J. Krieg, Timothy W. Kunz, Nick J. Hendriksma, Wayne S. Harris, James A. Niemeier, Jongmin Lee, Hermes Fernandez, Joseph F. Girtler