Patents by Inventor Thomas L. Maring

Thomas L. Maring 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: 4505472
    Abstract: Astro capsule intended for use as a toy and raisable and rotatable on a four-bar linkage by hydraulic cylinders through hydraulic circuits. An electrical circuit provides for sequenced flashing flight lights, pulsating front gun lights, and for providing through a speaker a rocket sound and a phasor gun sound. The hydraulic circuits include a novel single spool for regulating flow through a valve between a combined motor pump tank to a cylinder at a fast speed up and slow speed down, and a hydraulically actuated system for rotating the capsule about its vertical axis. The vertical motion valve is mechanically linked to the joystick for ascending and descending motion and electrically controlled by the joystick for hydraulic actuation of the capsule about its vertical axis. The four-bar linkage includes a safety bar which overrides the joystick in the event that an individual or an object is positioned under the linkage in an elevated condition.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: March 19, 1985
    Assignee: Rawson Control Systems Inc.
    Inventors: Allan L. Lorenc, Thomas L. Maring
  • Patent number: 4492372
    Abstract: Helicopter intended for use as a toy and raisable on a four-bar linkage by a hydraulic cylinder through a hydraulic circuit. An electrical circuit provides for alternately flashing flight lights, pulsating front gun lights, and for providing through a speaker a chopper sound and a phasor gun sound. The hydraulic circuit includes a novel single spool for regulating flow through a valve between a combined motor pump tank to a cylinder at a fast speed up and slow speed down. The valve is mechanically linked to the joy stick. The four-bar linkage includes a safety bar which overrides the joy stick in the event that an individual or an object is positioned under the linkage in an elevated condition. The hydraulic circuit is provided with a joy stick stop limit within the joy stick throttle structure, a valve control stop link, a safety bar limit, and the inherent four-bar linkage limit, all of these limits acting to keep oil in the cylinder and provide for safety of operation.
    Type: Grant
    Filed: February 11, 1982
    Date of Patent: January 8, 1985
    Assignee: Rawson Control Systems, Inc.
    Inventors: Allan L. Lorence, Thomas L. Maring, James L. Rawson, deceased