Patents by Inventor David G. Lefevers

David G. Lefevers 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).

  • Electromechanical parking meter door communications interface
    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
  • Electromechanical parking meter door communications interface
    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
  • Electromechanical parking meter door communications interface
    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