Patents by Inventor Robert J. Middleby

Robert J. Middleby 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: 6921095
    Abstract: A hand trolley includes a chassis formed from side frames comprising parallel frame members, wheels and a base platform provided with a load lifting carriage having a lifting surface. The carriage can be raised from a low position on the base platform to an elevated position by operating a hand cranked winch with a crank handle rotatable about an axle located proximate to a hand grip on the chassis rails and parallel to the axis of the wheels. The positioning and orientation of the crank handle allows correct ergonomic use by an operator who can grip the trolley chassis with one hand while controlling and operating the crank handle in an ergonomically sound position.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: July 26, 2005
    Inventor: Robert J. Middleby
  • Publication number: 20040155418
    Abstract: A hand trolley includes a chassis formed from side frames comprising parallel frame members, wheels and a base platform provided with a load lifting carriage having a lifting surface. The carriage can be raised from a low position on the base platform to an elevated position by operating a hand cranked winch with a crank handle rotatable about an axle located proximate to a hand grip on the chassis rails and parallel to the axis of the wheels. The positioning and orientation of the crank handle allows correct ergonomic use by an operator who can grip the trolley chassis with one hand while controlling and operating the crank handle in an ergonomically sound position.
    Type: Application
    Filed: March 9, 2004
    Publication date: August 12, 2004
    Inventor: Robert J Middleby