Patents by Inventor Michael G. Thuma

Michael G. Thuma 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).

  • Swivelable and unidirectional platform truck
    Patent number: 9650060
    Abstract: In general, the present invention provides a platform truck. More specifically, the present invention provides a platform truck comprised of a base member, a handle, a pair of swivel caster wheels depending from the bottom surface back end of the base member, a pair of swivel-lock caster wheels depending from the bottom surface front end of the base member, and a user-activated actuator assembly carried on the bottom surface of the base allowing the front swivel-lock casters to be switched between a unidirectional position and swivelable position to more easily negotiate tight turns and doorways is disclosed. Also included is a handle that is stowable within the base portion of the platform truck so that the platform truck may include one or two handles, whereby a handle may be included on one or both ends of the platform truck.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 16, 2017
    Assignee: Suncast Technologies, LLC
    Inventors: Robert G. Kopp, Michael G. Thuma, Michael R. Vogler
  • Swivelable and unidirectional platform truck
    Publication number: 20170072978
    Abstract: In general, the present invention provides a platform truck. More specifically, the present invention provides a platform truck comprised of a base member, a handle, a pair of swivel caster wheels depending from the bottom surface back end of the base member, a pair of swivel-lock caster wheels depending from the bottom surface front end of the base member, and a user-activated actuator assembly carried on the bottom surface of the base allowing the front swivel-lock casters to be switched between a unidirectional position and swivelable position to more easily negotiate tight turns and doorways is disclosed. Also included is a handle that is stowable within the base portion of the platform truck so that the platform truck may include one or two handles, whereby a handle may be included on one or both ends of the platform truck.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 16, 2017
    Inventors: Robert G. Kopp, Michael G. Thuma, Michael R. Vogler