Patents by Inventor Stephen R. Egolf

Stephen R. Egolf 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: 9556922
    Abstract: End members (204) for a gas spring assembly (200) include an end member body (226) that is formed from a polymeric material. The end member body (226) includes an end wall (234) and a bumper mount (258) that is integrally formed with at least the end wall (234) from the polymeric material of the end member body (226). The bumper mount (258) projects axially from the end wall (234) in a first direction. The end member (204) includes a central support post (256) that extends from the end wall (234) in a direction opposite the bumper mount (258). The end member (204) also includes an insert (272) that is at least partially embedded within at least one of the bumper mount (258) and the central support post wall (256). Gas spring assemblies and suspension systems are also included.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: January 31, 2017
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Stephen R. Egolf, Stephen C. Street
  • Publication number: 20150211593
    Abstract: End members (204) for a gas spring assembly (200) include an end member body (226) that is formed from a polymeric material. The end member body (226) includes an end wall (234) and a bumper mount (258) that is integrally formed with at least the end wall (234) from the polymeric material of the end member body (226). The bumper mount (258) projects axially from the end wall (234) in a first direction. The end member (204) includes a central support post (256) that extends from the end wall (234) in a direction opposite the bumper mount (258). The end member (204) also includes an insert (272) that is at least partially embedded within at least one of the bumper mount (258) and the central support post wall (256). Gas spring assemblies and suspension systems are also included.
    Type: Application
    Filed: August 29, 2013
    Publication date: July 30, 2015
    Applicant: Firestone Industrial Products Company, LLC
    Inventors: Stephen R. Egolf, Stephen C. Street
  • Patent number: 8950764
    Abstract: A jounce bumper can include a mounting wall and at least one helical thread. An end member can be at least partially formed from a quantity of polymeric material and can include a base wall and at least one helical thread integrally formed from the quantity of polymeric material. The end member and the jounce bumper can form a gas spring assembly. A method of assembly is also included.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: February 10, 2015
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Stephen R. Egolf, Stephen C. Street
  • Patent number: 8739683
    Abstract: A piston for use in forming a gas spring assembly includes a longitudinally extending axis, a first end wall extending approximately transverse to the axis, and an outer side wall extending longitudinally from adjacent the first end wall. The outer side wall includes a first side wall portion that forms a fully circumferential outer surface and a second side wall portion that forms a partially circumferential outer surface that extends longitudinally beyond the fully circumferential outer surface. A gas spring assembly including such a piston is also included.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: June 3, 2014
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Stephen R. Egolf, Andrew Grabarz, Stephen C. Street, Pradipta N. Moulik
  • Publication number: 20130193664
    Abstract: A jounce bumper can include a mounting wall and at least one helical thread. An end member can be at least partially formed from a quantity of polymeric material and can include a base wall and at least one helical thread integrally formed from the quantity of polymeric material. The end member and the jounce bumper can form a gas spring assembly. A method of assembly is also included.
    Type: Application
    Filed: January 29, 2013
    Publication date: August 1, 2013
    Inventors: Stephen R. Egolf, Stephen C. Street
  • Publication number: 20120217688
    Abstract: A piston for use in forming a gas spring assembly includes a longitudinally extending axis, a first end wall extending approximately transverse to the axis, and an outer side wall extending longitudinally from adjacent the first end wall. The outer side wall includes a first side wall portion that forms a fully circumferential outer surface and a second side wall portion that forms a partially circumferential outer surface that extends longitudinally beyond the fully circumferential outer surface. A gas spring assembly including such a piston is also included.
    Type: Application
    Filed: May 8, 2012
    Publication date: August 30, 2012
    Applicant: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventors: Stephen R. Egolf, Andrew Grabarz, Stephen C. Street, Pradipta N. Moulik
  • Patent number: 8191458
    Abstract: A piston for use in forming a gas spring assembly includes a longitudinally extending axis, a first end wall extending approximately transverse to the axis, and an outer side wall extending longitudinally from adjacent the first end wall. The outer side wall includes a first side wall portion that forms a fully circumferential outer surface and a second side wall portion that forms a partially circumferential outer surface that extends longitudinally beyond the fully circumferential outer surface. A gas spring assembly including such a piston is also included.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: June 5, 2012
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: Stephen R. Egolf
  • Publication number: 20100000402
    Abstract: A piston for use in forming a gas spring assembly includes a longitudinally extending axis, a first end wall extending approximately transverse to the axis, and an outer side wall extending longitudinally from adjacent the first end wall. The outer side wall includes a first side wall portion that forms a fully circumferential outer surface and a second side wall portion that forms a partially circumferential outer surface that extends longitudinally beyond the fully circumferential outer surface. A gas spring assembly including such a piston is also included.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 7, 2010
    Applicant: BFS DIVERSIFIED PRODUCTS, LLC
    Inventor: STEPHEN R. EGOLF
  • Patent number: 7614615
    Abstract: A directional stabilizer ring includes a first or mounting surface and a second or biasing surface that faces away from the first surface and extends at an included angle relative thereto. The second surface is configured to abuttingly engage the flexible wall of a fluid spring assembly and to bias at least a portion thereof in a preferred direction. A fluid spring assembly and a suspension system that utilize such a directional stabilizer ring as well as a method of biasing a flexible wall using such a directional stabilizer ring are also included.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: November 10, 2009
    Inventor: Stephen R. Egolf
  • Patent number: 7497422
    Abstract: An air spring assembly including a first end member having a peripheral edge, a second end member in spaced relation to the first end member, and a flexible sleeve secured between the first and second end members at least partially defining a spring chamber. A label is formed from sheet material and includes a first portion coated with adhesive and a second portion spaced from the first portion that includes a plurality of indicia. The label is disposed along the first end member with the first adhesive portion secured thereto and the second portion extending outwardly beyond the peripheral edge. A method is also disclosed.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: March 3, 2009
    Assignee: BFS Diversified Products, LLC
    Inventors: Stephen R. Egolf, James A. Johnson, Brian E. Jennings
  • Publication number: 20080174056
    Abstract: A directional stabilizer ring includes a first or mounting surface and a second or biasing surface that faces away from the first surface and extends at an included angle relative thereto. The second surface is configured to abuttingly engage the flexible wall of a fluid spring assembly and to bias at least a portion thereof in a preferred direction. A fluid spring assembly and a suspension system that utilize such a directional stabilizer ring as well as a method of biasing a flexible wall using such a directional stabilizer ring are also included.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventor: Stephen R. Egolf
  • Patent number: 7244324
    Abstract: An air spring assembly including a first end member having a peripheral edge, a second end member in spaced relation to the first end member, and a flexible sleeve secured between the first and second end members at least partially defining a spring chamber. A label is formed from sheet material and includes a first portion coated with adhesive and a second portion spaced from the first portion that includes a plurality of indicia. The label is disposed along the first end member with the first adhesive portion secured thereto and the second portion extending outwardly beyond the peripheral edge. A method is also disclosed.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: July 17, 2007
    Assignee: BFS Diversified Products, LLC
    Inventors: Stephen R. Egolf, James A. Johnson, Brian E. Jennings
  • Patent number: 5836461
    Abstract: A wire shelf having a hanger rod which permits uninterrupted hanger travel along its length, said shelf comprising. The hanger rod is secured to either the front support rod or an intermediate support rod by a plurality of support hooks. Each support hook has an end secured to the support rod, and another end secured to the hanger rod.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: November 17, 1998
    Assignee: Schulte Corporation
    Inventors: Elmer J. Kokenge, William Carlson, Stephen R. Egolf, John D. Kokenge