Patents by Inventor J. Thomas Helm

J. Thomas Helm 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: 4348147
    Abstract: A high-level dumping apparatus including an upright frame, a carriage vertically movable on said frame by a linear motor, and a load carrying chute assembly having an upward and rearward projecting tilt arm supported by a laterally shiftable lift member on the carriage for vertically reciprocable and pivotal movement of the chute assembly on the upright frame, and including a trip roller on the top portion of the upright frame in the upward path of the tilt arm to cause the tilt arm to pivot about the trip roller upon engagement of the tilt arm with the trip roller. A pivotal guide element is fixed to the tilt arm to ride in a vertical guide track for directing the vertical movement of the chute assembly and for determining the moment arm of the pivotal thrust exerted upon the chute assembly during its dumping cycle.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: September 7, 1982
    Assignee: Dozier Equipment International Company
    Inventor: J. Thomas Helm
  • Patent number: 4318661
    Abstract: A drum handling attachment for a forklift truck including a frame for attachment to the forks of the forklift truck, and supporting a transverse rotary shaft upon which are mounted for rotary movement therewith, at least a pair of gripping arms, at least one of the gripping arms being transversely adjustable on the shaft for handling one or more drums of different sizes.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: March 9, 1982
    Assignee: Dozier Equipment International Company
    Inventor: J. Thomas Helm