Patents by Inventor Michael Lumpkin

Michael Lumpkin 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: 11220279
    Abstract: In accordance with one aspect of the present disclosure, a wear ring assembly is provided for a railway roller bearing. The wear ring assembly includes a wear ring having a central opening for receiving a journal of a railway wheel assembly and an insert including a plurality of spacers configured to extend in the opening of the wear ring to separate the wear ring from the journal. The spacers are spaced apart from each other about the wear ring. The insert may include one or more flanges that separate the wear ring from a bearing cone.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: January 11, 2022
    Assignee: Amsted Rail Company, Inc.
    Inventors: Michael Lumpkin, Michael Mason
  • Patent number: 11155283
    Abstract: In accordance with one aspect of the present disclosure, a wear ring assembly is provided for a railway roller bearing. The wear ring assembly includes a wear ring having a central opening for receiving a journal of a railway wheel assembly and an insert including a plurality of spacers configured to extend in the opening of the wear ring to separate the wear ring from the journal. The spacers are spaced apart from each other about the wear ring. The insert may include one or more flanges that separate the wear ring from a bearing cone.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: October 26, 2021
    Assignee: Amsted Rail Company, Inc.
    Inventors: Michael Lumpkin, Michael Mason
  • Publication number: 20200017129
    Abstract: In accordance with one aspect of the present disclosure, a wear ring assembly is provided for a railway roller bearing. The wear ring assembly includes a wear ring having a central opening for receiving a journal of a railway wheel assembly and an insert including a plurality of spacers configured to extend in the opening of the wear ring to separate the wear ring from the journal. The spacers are spaced apart from each other about the wear ring. The insert may include one or more flanges that separate the wear ring from a bearing cone. The insert may be easily installed in the opening of the wear ring and separate the wear ring from the journal and the bearing cone to reduce fretting wear between the components.
    Type: Application
    Filed: July 10, 2018
    Publication date: January 16, 2020
    Inventors: Michael Lumpkin, Michael Mason
  • Patent number: 6467602
    Abstract: An electronic security system for a parking meter includes a vault door having a spring-biased contact terminal for making breakable electrical contact with a housing hinge bracket contact terminal mounted in a vault opening. An electronic lock control circuit is able to communicate with a meter control (coin counting/auditing) circuit in the meter portion of the system through the vault door/housing hinge bracket contact terminals, thus eliminating a direct cable connection between the lock circuit and the meter circuit. The spring-biased contact may be substituted by equivalent breakable electrical contacts such as optocoupler contacts.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: October 22, 2002
    Assignees: Medeco Security Locks, Inc., J.J. Mackay Canada Limited
    Inventors: James D. Bench, David G. Lefevers, Gary Hoss, J. Michael Lumpkin, Gregory E. Chauvin
  • Publication number: 20020062172
    Abstract: An electronic security system for a parking meter includes a vault door having a spring-biased contact terminal for making breakable electrical contact with a housing hinge bracket contact terminal mounted in a vault opening. An electronic lock control circuit is able to communicate with a meter control (coin counting/auditing) circuit in the meter portion of the system through the vault door/housing hinge bracket contact terminals, thus eliminating a direct cable connection between the lock circuit and the meter circuit. The spring-biased contact may be substituted by equivalent breakable electrical contacts such as optocoupler contacts.
    Type: Application
    Filed: September 17, 2001
    Publication date: May 23, 2002
    Applicant: Medeco Security Locks, Inc.
    Inventors: James D. Bench, David G. Lefevers, Gary Hoss, J. Michael Lumpkin
  • Publication number: 20010037928
    Abstract: An electronic security system for a parking meter includes a vault door having a spring-biased contact terminal for making breakable electrical contact with a housing hinge bracket contact terminal mounted in a vault opening. An electronic lock control circuit is able to communicate with a meter control (coin counting/auditing) circuit in the meter portion of the system through the vault door/housing hinge bracket contact terminals, thus eliminating a direct cable connection between the lock circuit and the meter circuit. The spring-biased contact may be substituted by equivalent breakable electrical contacts such as optocoupler contacts.
    Type: Application
    Filed: April 19, 2001
    Publication date: November 8, 2001
    Applicant: MEDECO SECURITY LOCKS, INC.
    Inventors: James D. Bench, David G. Lefevers, Gary Hoss, J. Michael Lumpkin, Gregory E. Chauvin
  • Patent number: 5839307
    Abstract: An electromechanical cylinder lock includes an outer lock shell and a rotatable lock barrel located therein which is controlled by dual locking features. A side bar or fence selectively blocks and permits rotation of the barrel with respect to the shell in response to insertion of a key into a keyway in the barrel. The barrel includes a plurality of electromechanical locking members with grooves formed therein, the locking members being movable to a position in which the grooves are aligned to accept the side bar or portions thereof. An electromagnetic core disposed in the barrel is energized in response to a control device which determines whether an attempt to open the lock is authorized, the magnetic core rotating the electromechanical locking members to a desired position relative to the side bar to allow rotation of the barrel. The locking members may be flat disc-shaped elements with a portion cut out to form a groove.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: November 24, 1998
    Assignee: Medeco Security Locks, Inc.
    Inventors: Peter Field, Michael Lumpkin