Patents by Inventor David Lee Sandbach

David Lee Sandbach 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).

  • Publication number: 20020134116
    Abstract: The present invention relates to a detector constructed from electrically conducting fabric and configured to present a varying electrical characteristic in response to a mechanical interaction. The detector comprises a first conducting layer (401) which is displaced from a second conducting layer (402) such that conduction between the layers results when the layers are mechanically forced together. In addition, the first of the layers has a plurality of lengths of conductive yarn and a plurality of lengths of non-conductive yarn machined therein, such that at least one length of conductive yarn is electrically isolated from another of the lengths of conductive yarn and the conducting yarns in the first of the layers are electrically grouped to define a plurality of identifiable rows. Each identifiable row has a respective electrical conductor; and define specific regions of the detector.
    Type: Application
    Filed: November 29, 2001
    Publication date: September 26, 2002
    Inventor: David Lee Sandbach
  • Patent number: 6185761
    Abstract: A system for raising a person lying on the ground includes a lifting seat 10 comprising a back rest 12 coupled to a seat portion 18. At either side of the back rest 12 and seat portion 18 there are provided side supports 14, 16, 20 and 22. The system is such that in use it can be slid onto a person lying on his/her side, rotated such that the back rest 12 lies on the ground, with the supports 14-22 supporting the person during rotation to a back-lying position. The back rest 12 can then be rotated upwardly to bring the person into a sitting position.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: February 13, 2001
    Assignee: Cane & Able Limited
    Inventors: Christopher Chapman, David Lee Sandbach