Patents by Inventor David H. J. Totterdell

David H. J. Totterdell 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 transducers with diamond diaphragms and optical deflection detection means
    Patent number: 5365789
    Abstract: A pressure transducer comprises a polycrystalline diamond diaphragm (39), produced by use of a chemical vapour deposition technique, on a support (33). The diaphragm (39) can deflect in response to variations in pressure. A single optical fibre interferometer (36, 32) is used for detecting and measuring the deflection of the diaphragm (39) (FIG. 3).
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: November 22, 1994
    Assignee: United Kingdom Atomic Energy Authority
    Inventors: David H. J. Totterdell, Paul R. Chalker