Patents by Inventor Philip John Dale

Philip John Dale 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).

  • Pressure tolerant transducer
    Patent number: 6404106
    Abstract: This invention concerns a transducer comprising a layer of active material and a backing plate (110). The backing plate (110) has first and second major surfaces. A layer (111) of active material is affixed to the first surface. The transducer also includes a region adjacent to the second major surface into which region the backing plate (110) can be deflected. The region is substantially isolated from any external pressure incident on the layer of active material. Moreover, the backing plate (110) and/or layer of active material (111) is of a non-uniform thickness. Preferably, the backing plate (110) is thicker at a central region thereof than at an edge region thereof.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: June 11, 2002
    Assignee: Thales Underwater Systems Limited
    Inventors: Philip John Dale, Grant Smith, John Robert Walden, Michael James Doble