Patents by Inventor Daniel H. Ellsworth

Daniel H. Ellsworth 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).

  • Bead chain stacker
    Patent number: 4385758
    Abstract: A document stacking bin receives and stacks documents injected therein along a free flight path. The bin includes an energy absorbing device for intercepting the documents in free flight, absorbing their kinetic energy and allowing them to free fall onto a stack. The energy absorbing device includes at least one bead chain having one end fixed and the other end looped over a portion of the bin and attached to a weight.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: May 31, 1983
    Assignee: Scan Optics
    Inventor: Daniel H. Ellsworth