Patents by Inventor Harlan B. Hanson

Harlan B. Hanson 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).

  • Dual platform counting scale
    Patent number: 4139070
    Abstract: Counting scale utilizing two platforms connected to a single load cell for determining the weights of a sample and an unknown quantity of articles to be counted. The weights are combined to determine the number of articles, and this number is displayed. One of the platforms is connected directly to the load cell and is particularly suitable for weighing small loads. The other platform is connected to the load cell through a lever system and is particularly suitable for larger loads. Depending upon the size and the number of the articles to be counted, either of the platforms can be used for weighing either the unknown quantity or the sample, or both. A keyboard is included for entering a weight such as the weight of a container so that the weight of a group of parts in a container upon one of the platforms can be determined without removing the parts and weighing the container separately.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: February 13, 1979
    Assignee: National Controls, Inc.
    Inventors: Harlan B. Hanson, Frank C. Rock