Patents by Inventor Machiel G. A. Wentink

Machiel G. A. Wentink 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).

  • Piston design with increased lateral strength
    Patent number: 10302167
    Abstract: A molded piston for an air spring for a vehicle suspension has an outer shell, a non-cylindrical central column braced in its relation to the outer shell by outer radial webs, and an upper surface having a recessed lower end closure seating surface. The non-cylindrical central column may have a chordal surface and a mounting stud sleeve and hole for attachment to a vehicle suspension member. The mounting stud sleeve and hole may be braced in its relation to the non-cylindrical central column by inner radial webs. The non-cylindrical central column may further have a locating sleeve and hole. The outer radial webs may be provided with Y-shaped webs connecting the outer radial webs to the outer shell and/or web arches.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 28, 2019
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Edger ten Broeke, Machiel G. A. Wentink
  • PISTON DESIGN WITH INCREASED LATERAL STRENGTH
    Publication number: 20170268592
    Abstract: A molded piston for an air spring for a vehicle suspension has an outer shell, a non-cylindrical central column braced in its relation to the outer shell by outer radial webs, and an upper surface having a recessed lower end closure seating surface. The non-cylindrical central column may have a chordal surface and a mounting stud sleeve and hole for attachment to a vehicle suspension member. The mounting stud sleeve and hole may be braced in its relation to the non-cylindrical central column by inner radial webs. The non-cylindrical central column may further have a locating sleeve and hole. The outer radial webs may be provided with Y-shaped webs connecting the outer radial webs to the outer shell and/or web arches.
    Type: Application
    Filed: June 1, 2017
    Publication date: September 21, 2017
    Applicant: Firestone Industrial Products Company, LLC
    Inventors: Edger ten Broeke, Machiel G.A. Wentink
  • End member, gas spring assembly and method
    Patent number: 9371881
    Abstract: An end member for a gas spring assembly includes an end member wall with a first wall portion at least partially defining a substantially-flat surface area in a first plane, a second wall portion at least partially defining an outer peripheral extent of the end member wall and a third wall portion at least partially defining a substantially-flat surface area in a second plane. A valley can extend lengthwise along the third wall portion. A gas spring assembly and method of assembly are also included.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: June 21, 2016
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Leonardus J. B. Peeters, Machiel G. A. Wentink, Daniel I. Levy, Daniel P. Steele
  • END MEMBER, GAS SPRING ASSEMBLY AND METHOD
    Publication number: 20150035212
    Abstract: An end member for a gas spring assembly includes an end member wall with a first wall portion at least partially defining a substantially-flat surface area in a first plane, a second wall portion at least partially defining an outer peripheral extent of the end member wall and a third wall portion at least partially defining a substantially-flat surface area in a second plane. A valley can extend lengthwise along the third wall portion. A gas spring assembly and method of assembly are also included.
    Type: Application
    Filed: October 20, 2014
    Publication date: February 5, 2015
    Inventors: Leonardus J. B. Peeters, Machiel G. A. Wentink, Daniel I. Levy, Daniel P. Steele
  • End member, gas spring assembly and method
    Patent number: 8864113
    Abstract: An end member for a gas spring assembly includes an end member wall with a first wall portion at least partially defining a substantially-flat surface area in a first plane, a second wall portion at least partially defining an outer peripheral extent of the end member wall and a third wall portion at least partially defining a substantially-flat surface area in a second plane. A valley can extend lengthwise along the third wall portion. A gas spring assembly and method of assembly are also included.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: October 21, 2014
    Assignee: Firestone Industrial Products Company, LLC
    Inventors: Leonardus J.B. Peeters, Machiel G.A. Wentink, Daniel I. Levy, Daniel P. Steele
  • END MEMBER, GAS SPRING ASSEMBLY AND METHOD
    Publication number: 20120200020
    Abstract: An end member for a gas spring assembly includes an end member wall with a first wall portion at least partially defining a substantially-flat surface area in a first plane, a second wall portion at least partially defining an outer peripheral extent of the end member wall and a third wall portion at least partially defining a substantially-flat surface area in a second plane. A valley can extend lengthwise along the third wall portion. A gas spring assembly and method of assembly are also included.
    Type: Application
    Filed: October 14, 2009
    Publication date: August 9, 2012
    Applicant: FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC
    Inventors: Leonardus J. B. Peeters, Machiel G. A. Wentink, Daniel I. Levy, Daniel P. Steele