Patents Assigned to Primary Ventures, LLC
  • Patent number: 7828352
    Abstract: A box lifting device places weight upon the lateral surface of lifter's forearm or hand. Preferred embodiments include a lifting body and a handle molded as a single piece of injection molded plastic, a lifting plate having metal teeth or other lifting members, and a weight transfer member that shifts the weight of a box to a lateral surface of the users forearm or hand. The lifting members are preferably angled other than 90° relative to a long axis of the handle. Preferred lifting plates include a plurality of openings, such that the lifting members of one plate enter the openings in the other plate and vice versa during storage of the devices. Magnets can be included to couple the left and right mating pairs. Lateral and medial forearm stops can be used to restrict a bending movement of the user's wrists relative to the handle.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: November 9, 2010
    Assignee: Primary Ventures, LLC
    Inventor: Dennis DuBois
  • Patent number: 7726712
    Abstract: A pair of devices for lifting boxes is disclosed. Each device comprises a handle, lifting surface, lifting plate and a plurality of lifting members in the form of angled teeth. During use, the teeth of each device are inserted into opposite sides of a corrugated box. A user is then able to lift the box using the temporary handles. The teeth are angled relative to a bottom edge of the lifting plates allowing a user's wrist to maintain a proper position to lift boxes over the user's head. During non-use the pair of devices they are connected with magnets such that the teeth of each lifting plate are received by corresponding openings in the other lifting plate. Each tooth may also include an extension portion for accommodating portions of a box thereby increasing the surface area of contact between the teeth and the box.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: June 1, 2010
    Assignee: Primary Ventures, LLC
    Inventor: Dennis DuBois