Patents by Inventor James T. Robinson, Jr.

James T. Robinson, Jr. 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: 5447078
    Abstract: A submersible gearmotor including a liquid resistant housing with radially inwardly extending partitions which form at least two shaft receiving chambers. The separate chambers act as protective regions between the internal components of the gearmotor and an outside liquid medium when submersed. The gearmotor also includes a tandem seal arrangement including an inboard seal located inside the housing and an outboard seal located outside the housing. The seals prevent the outside liquid medium from entering the gearmotor where the housing intersects with the rotating output shaft. The gearmotor further includes a leak detection system consisting of moisture sensing probes mounted inside one or both of the receiving chambers.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: September 5, 1995
    Assignee: Reliance Electric Industrial Company
    Inventors: James T. Robinson, Jr., Timothy J. Hassett, Gary L. Wheeler, Mark M. Hodowanec