Patents Assigned to Roberts Equipment, Inc.
  • Patent number: 8056677
    Abstract: This lift system serves as a powered ladder having a small footprint. The system is divided into two subchasses with a mast fixedly attached to a first subchassis for support of a liftable platform which may carry a human operator. Maneuverability is accomplished by a virtual articulating joint between the two subchasses. The joint comprises hydraulic cylinders operating in conjunction with wheel struts to form a three-point support. Articulation enables the lift system to be adjusted on sloped or uneven terrain to maintain the mast in a vertical orientation. One use of the lift system is to carry a fruit picker into an orchard or vineyard and to position the picker to work efficiently. The lift system may carry a robot and may be controlled either locally or remotely.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: November 15, 2011
    Assignee: Roberts Equipment, Inc.
    Inventors: Roy Roberts, Fred K. O'Brien