Patents by Inventor Edward S. B. Holmes

Edward S. B. Holmes 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).

  • Thermal Fuse
    Patent number: 4494104
    Abstract: A fuse for responding to external temperatures to interrupt an electrical circuit, for example for interrupting a telephone battery feed in response to the temperature of a battery feed resistor, comprises a substrate carrying a pair of electrodes defining a gap between them. A fuse link, for example a gold strip, extends across the gap to interconnect the electrodes electrically. A film of solder overlies the fuse link and overlaps at least partly at least one of the electrodes. The fuse link is soluble in the molten solder so when the temperature of the solder paste exceeds its melting point, it melts, dissolves the fuse link, and retreats from the gap to sever the electrical connection between the electrodes.The fuse and a resistor whose temperature is to be detected, may be provided on a single substrate.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: January 15, 1985
    Assignee: Northern Telecom Limited
    Inventor: Edward S. B. Holmes
  • Transducer and method of making
    Patent number: 4160969
    Abstract: A transducer is constructed by the deposition of conductive leads by thick film deposition techniques and the deposition of resistive material on the substrate by thin film deposition techniques in electrical contact with the leads.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: July 10, 1979
    Assignee: The Garrett Corporation
    Inventor: Edward S. B. Holmes