Patents by Inventor David Lung

David Lung 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: 10882225
    Abstract: A system for the continuous extrusion, molding, and curing of tread for tires. An elongated strip of rubber material can be molded and cured shortly after extrusion such that the material retains much of the heat energy of extrusion and does not have to be stored. A plurality of discrete mold assemblies are conveyed adjacent to each other. As the mold assemblies are advanced sequentially, the uncured and unmolded strip of rubber material are extruded and positioned onto the mold assemblies. While the rubber strip advances, individual portions are sequentially molded and cured by passing through a mold press and then a curing press. A plug assembly is used to prevent the backflow of rubber material during the molding and curing.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 5, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: David Lung, John Hommerson, Michael Petrovich
  • Publication number: 20200047380
    Abstract: A system for the continuous extrusion, molding, and curing of tread for tires. An elongated strip of rubber material can be molded and cured shortly after extrusion such that the material retains much of the heat energy of extrusion and does not have to be stored. A plurality of discrete mold assemblies are conveyed adjacent to each other. As the mold assemblies are advanced sequentially, the uncured and unmolded strip of rubber material are extruded and positioned onto the mold assemblies. While the rubber strip advances, individual portions are sequentially molded and cured by passing through a mold press and then a curing press. A plug assembly is used to prevent the backflow of rubber material during the molding and curing.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 13, 2020
    Inventors: David Lung, John Hommerson, Michael Petrovich
  • Patent number: 10493711
    Abstract: A system for the continuous extrusion, molding, and curing of tread rubber is provided. A plurality of discrete mold sectors are arranged adjacent to each other along a longitudinal axis between an in-feed and an out-feed of a mold sector transport mechanism that extends through a heated press. As the mold sectors are continuously advanced along a process direction in steps, rubber material is extruded and placed onto at least one of the mold sectors near the in-feed end such that an elongated strip of rubber material extends over multiple mold sectors along the longitudinal axis. As the strip of rubber material exits the press, the mold sectors are sequentially removed from the rubber material and returned to the in-feed. An extruder outlet positioned near the in-feed can be moved towards or away from the mold sectors to supply rubber material and prevent backflow.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: December 3, 2019
    Assignees: Companie Generale Des Etablissements Michelin, Michelin Recherce Et Techinque S.A.
    Inventors: James Fortner, Chinglin Pan, John Hommerson, David Lung, Michael Petrovich, Chris Beccavin
  • Patent number: 10486346
    Abstract: A system for the continuous extrusion, molding, and curing of tread for tires. An elongated strip of rubber material can be molded and cured shortly after extrusion such that the material retains much of the heat energy of extrusion and does not have to be stored. A plurality of discrete mold assemblies are conveyed adjacent to each other. As the mold assemblies are advanced sequentially, the uncured and unmolded strip of rubber material are extruded and positioned onto the mold assemblies. While the rubber strip advances, individual portions are sequentially molded and cured by passing through a mold press and then a curing press. A plug assembly is used to prevent the backflow of rubber material during the molding and curing.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: November 26, 2019
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: David Lung, John Hommerson, Michael Petrovich
  • Publication number: 20180021989
    Abstract: A system for the continuous extrusion, molding, and curing of tread for tires. An elongated strip of rubber material can be molded and cured shortly after extrusion such that the material retains much of the heat energy of extrusion and does not have to be stored. A plurality of discrete mold assemblies are conveyed adjacent to each other. As the mold assemblies are advanced sequentially, the uncured and unmolded strip of rubber material are extruded and positioned onto the mold assemblies. While the rubber strip advances, individual portions are sequentially molded and cured by passing through a mold press and then a curing press. A plug assembly is used to prevent the backflow of rubber material during the molding and curing.
    Type: Application
    Filed: April 19, 2016
    Publication date: January 25, 2018
    Inventors: David Lung, John Hommerson, Michael Petrovich
  • Publication number: 20170246822
    Abstract: A system for the continuous extrusion, molding, and curing of tread rubber is provided. A plurality of discrete mold sectors are arranged adjacent to each other along a longitudinal axis between an in-feed and an out-feed of a mold sector transport mechanism that extends through a heated press. As the mold sectors are continuously advanced along a process direction in steps, rubber material is extruded and placed onto at least one of the mold sectors near the in-feed end such that an elongated strip of rubber material extends over multiple mold sectors along the longitudinal axis. As the strip of rubber material exits the press, the mold sectors are sequentially removed from the rubber material and returned to the in-feed. An extruder outlet positioned near the in-feed can be moved towards or away from the mold sectors to supply rubber material and prevent backflow.
    Type: Application
    Filed: October 23, 2014
    Publication date: August 31, 2017
    Inventors: James Fortner, Chinglin Pan, John Hommerson, David Lung, Michael Petrovich, Chris Beccavin
  • Patent number: 6733060
    Abstract: The present invention provides a cargo storage device for a vehicle having a passenger space and an end gate including a back end situated adjacent a rearward-most seat, at least one pair of sidewalls extending from the back end and having a plurality of storage units therein, a floor situated between the sidewalls and reconfigurable between a lowered position and a raised position, a door situated in the floor and pivotally operable between a closed position and an opened position, an organizational bin situated beneath the floor and having a plurality of dividers therein, and wherein at least two opposing storage units have identical tracks thereon.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: May 11, 2004
    Assignee: Ford Motor Company
    Inventors: Aaron Pavkov, Charles Amoh, Charlene Chu, David Lung, Jonlin Pei, Josh Urso, Konn Lam