Patents by Inventor Mark A. Wolfer

Mark A. Wolfer 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).

  • Torsion bar active length control and method of manufacturing
    Patent number: 11819962
    Abstract: A method of manufacturing a torsion bar includes cutting a stock torsion bar material to a desired torsion bar length to form the torsion bar. The method also includes forming a first end portion by removing material from the torsion bar to form a first annular groove extending circumferentially about the torsion bar. The method further includes forming a second end portion by removing material from the torsion bar to form a second annular groove extending circumferentially about the torsion bar.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: November 21, 2023
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Eric D. Pattok, Sai Saagar Adimulam, Mark A. Wolfer
  • Torsion bar for a steering system assembly
    Patent number: 11292514
    Abstract: A method of manufacturing a torsion bar for a steering system is provided. The method includes supporting a torsion bar blank on a cold forming machine with a plurality of dies at a first end region of the torsion bar blank and a second end region of the torsion bar blank. The method also includes rolling the torsion bar blank to form an end region having a cylindrical outer surface extending from an axial end surface and a serrated portion disposed proximate the end region and axially offset from the axial end surface.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: April 5, 2022
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Daniel J. Diffin, David E. King, Mark A. Wolfer, Christopher L. Walsh
  • TORSION BAR ACTIVE LENGTH CONTROL AND METHOD OF MANUFACTURING
    Publication number: 20210205937
    Abstract: A method of manufacturing a torsion bar is provided. The method includes cutting a stock torsion bar material to a desired torsion bar length to form the torsion bar. The method also includes forming a first end portion by removing material from the torsion bar to form a first annular groove extending circumferentially about the torsion bar. The method further includes forming a second end portion by removing material from the torsion bar to form a second annular groove extending circumferentially about the torsion bar.
    Type: Application
    Filed: March 25, 2021
    Publication date: July 8, 2021
    Inventors: Eric D. Pattok, Sai Saagar Adimulam, Mark A. Wolfer
  • Torsion bar active length control and method of manufacturing
    Patent number: 11020827
    Abstract: A torsion bar includes a central portion extending in an axial direction about a longitudinal axis. The torsion bar also includes a first end portion having a splined outer surface, the first end portion disposed proximate a first end of the torsion bar, the first end portion spaced from the central portion with a first annular groove extending circumferentially about the torsion bar.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: June 1, 2021
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: Eric D. Pattok, Sai Saagar Adimulam, Mark A. Wolfer
  • TORSION BAR FOR A STEERING SYSTEM ASSEMBLY
    Publication number: 20200339190
    Abstract: A method of manufacturing a torsion bar for a steering system is provided. The method includes supporting a torsion bar blank on a cold forming machine with a plurality of dies at a first end region of the torsion bar blank and a second end region of the torsion bar blank. The method also includes rolling the torsion bar blank to form an end region having a cylindrical outer surface extending from an axial end surface and a serrated portion disposed proximate the end region and axially offset from the axial end surface.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Inventors: Daniel J. Diffin, David E. King, Mark A. Wolfer, Christopher L. Walsh
  • TORSION BAR ACTIVE LENGTH CONTROL AND METHOD OF MANUFACTURING
    Publication number: 20190277330
    Abstract: A torsion bar includes a central portion extending in an axial direction about a longitudinal axis. The torsion bar also includes a first end portion having a splined outer surface, the first end portion disposed proximate a first end of the torsion bar, the first end portion spaced from the central portion with a first annular groove extending circumferentially about the torsion bar.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 12, 2019
    Inventors: Eric D. Pattok, Sai Saagar Adimulam, Mark A. Wolfer
  • TORSION BAR FOR A STEERING SYSTEM ASSEMBLY
    Publication number: 20180118259
    Abstract: A torsion bar for a steering system includes a main body. Also included is an end region having a cylindrical outer surface extending from an axial end surface. Further included is a serrated portion disposed proximate the end region and axially offset from the axial end surface.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 3, 2018
    Inventors: Daniel J. Diffin, David E. King, Mark A. Wolfer, Christopher L. Walsh