Patents by Inventor Charles E. Handford

Charles E. Handford 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).

  • Dolly type drum scale
    Patent number: 6222137
    Abstract: A portable scale for weighing drums, cylinders and other containers is describe. The scale is lightweight and easily transportable and due to the use of three load cells instead of the traditional four, it is highly accurate even on uneven floor surfaces. The weighing platform is low to the ground and has a loading ramp making placement of objects to be weighed easier.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: April 24, 2001
    Assignee: Wayac Inc.
    Inventor: Charles E. Handford