Patents by Inventor Robert Frear

Robert Frear 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: 8333097
    Abstract: An application for a device that bends a workpiece includes a rotary hydraulic actuator. The rotary hydraulic actuator is fluidly coupled to a controlled source of hydraulic fluid pressure and has an rotating flange that turns responsive to the hydraulic fluid pressure. A bending member is coupled to the rotating flange of the rotary hydraulic actuator and rotates responsive to the rotational motion of the rotating flange. A bending mandrel is mounted on a face of the bending member at a center of rotation of the bending member and a force mandrel mounted on the face of the bending member. An actuator controls the hydraulic fluid pressure and clips are provided for attaching the device for bending to a boom of, for example, a skid-steer loader.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: December 18, 2012
    Inventor: Robert Frear
  • Patent number: 8201430
    Abstract: A hydraulically rebar bender for skid-steer loader includes a structural case with quick-attach flanges for attachment to skid-steer loaders. The case has an adjustable work tray mounted on the face for supporting the rebar when bending. One end of a hydraulic cylinder is connected to the case and a distal end is connected to a rack gear. The rack gear mates with a pinion gear that is mounted on an axle. The pinion gear is connected to a bending disc that rotates with the pinion gear. A force shaft is mounted on the bending disk. The force shaft travels in a circular cutout of the case and accepts various size mandrels. The axle protrudes out of the case and has a bend mandrel mounted thereon. Hydraulic power is supplied by the skid-steer loaders hydraulic system via hydraulic supply hoses.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: June 19, 2012
    Inventor: Robert Frear