Patents by Inventor Jonathan William Hamlin

Jonathan William Hamlin 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).

  • Wire guidance and remote operation for material handling vehicles
    Patent number: 11726491
    Abstract: A material handling vehicle guidance system comprises a first conductive member, a second conductive member, and an electrical current source. The second conductive member is electrically coupled to the first conductive member and extends parallel to the first conductive member to define a loop. The first conductive member and second conductive member are coupled to a shielded cable connector. The electrical current source supplies current to the first conductive member in a first direction and supplies current to the second conductive member in a second direction opposite the first direction to produce a narrowcast radio frequency signal detectable between the first conductive member and the second member.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: August 15, 2023
    Assignee: The Raymond Corporation
    Inventors: John Bryant Kirk, Erric Heitmann, Steven Medwin, James Wilcox, Jonathan William Hamlin
  • WIRE GUIDANCE AND REMOTE OPERATION FOR MATERIAL HANDLING VEHICLES
    Publication number: 20190258266
    Abstract: A material handling vehicle guidance system comprises a first conductive member, a second conductive member, and an electrical current source. The second conductive member is electrically coupled to the first conductive member and extends parallel to the first conductive member to define a loop. The first conductive member and second conductive member are coupled to a shielded cable connector. The electrical current source supplies current to the first conductive member in a first direction and supplies current to the second conductive member in a second direction opposite the first direction to produce a narrowcast radio frequency signal detectable between the first conductive member and the second member.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 22, 2019
    Inventors: John Bryant Kirk, Erric Heitmann, Steven Medwin, James Wilcox, Jonathan William Hamlin