Patents by Inventor Allan W. Sills

Allan W. Sills 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).

  • Measuring equipment
    Patent number: 4693010
    Abstract: Apparatus for measuring the thickness of sheet material and especially for use in bank note counting machines. Two sensory elements have a measuring field, such as an electric, magnetic or ultrasonic field, maintained between them. The elements which are initially in contact are separated by the thickness of the sheet material passing therebetween which causes a measurable change in the measuring field which change is used to determine the thickness and/or the count of the sheet material.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: September 15, 1987
    Inventor: Allan W. Sills