Patents by Inventor Rowan Frieling

Rowan Frieling 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).

  • Poppet assembly for a traction control modulator
    Patent number: 5454631
    Abstract: A traction control modulator for an automotive traction control system includes a housing having a longitudinal bore in fluid communication with the system. A drive gear selectively rotates a drive screw. A non-rotative nut is threaded onto the drive screw and mounted in the bore. A piston is attached to the nut and slidably mounted in the bore. A retainer is attached to the piston. A spring biases a poppet assembly away from the piston. The poppet assembly is slidably mounted in the bore and includes a poppet, a seal and a seal retainer. The seal retainer has an annular flange received in a groove on a poppet head and an annular cap fitted over a base of the seal.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: October 3, 1995
    Assignee: General Motors Corporation
    Inventors: Rowan Frieling, Mark A. Zupan, Jerome E. Puterbaugh