Patents by Inventor Andrew C. Ferguson

Andrew C. Ferguson 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: 4351403
    Abstract: A price computing weighing scale has a platform 10 and a m in housing 14 and also incorporates a printer unit 16 located between the platform 10 and the main housing 14 so as to be removable as a unit whereby the scale can be supplied with or without a printing facility. Location of the printer unit 16 within the area beneath the platform 10 minimises the counter space occupied by the weighing scale and printer.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: September 28, 1982
    Assignee: W. & T. Avery Limited
    Inventor: Andrew C. Ferguson
  • Patent number: 4276772
    Abstract: A force transducer comprises a block of material which is formed with a generally U-shaped or pi-shaped throughaperture 24 and a generally T-shaped throughaperture 26 in such a way as to form two loading members 10, 12 coupled together by first flexure elements 14, 16 which constrain the loading members to move in a predetermined direction under load and a second pair of flexure elements 18, 20 united by a connecting portion 22. In use, one loading member is connected to a fixture and the other is connected to a force receiver so that when one loading member is displaced relative to the other in said predetermined direction, the second flexure strips 18, 20 undergo a lateral deflection which is a measure of the applied force. This arrangement is particularly suitable for use with strain gauges as the flexures 18, 20 are subjected to a substantially uniform stress along their lengths when loaded.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: July 7, 1981
    Assignee: W. & T. Avery Limited
    Inventor: Andrew C. Ferguson