Patents by Inventor Anthony Renfrew White

Anthony Renfrew White 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: 7841603
    Abstract: A hand truck (20) for transporting a load is disclosed. The hand truck (20) comprises a sub-frame (22) with a foot portion (47) extending therefrom so that the sub-frame is able to support the load, a main frame (21) engaged with the sub-frame (22) such that the sub-frame (22) is able to be extended and retracted with respect to a lower end (32) of the main frame (21), at least one wheel (62, 63) secured relative to the main frame (21) so that the truck 20 is able to be wheeled about, a motor (70), a controller (74) coupled to the motor (70) for enabling a user to control the operation of the motor (70), and a flexible linkage (77) coupling the motor (70), main frame (21) and sub-frame (22) together such that the motor (70) is operable to move the linkage (77) to thereby extend or retract the sub-frame (22).
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: November 30, 2010
    Inventor: Anthony Renfrew White