Patents by Inventor Malcolm R. Walsh

Malcolm R. Walsh 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).

  • Use of PTC devices to protect insulated wires in electrical harnesses
    Patent number: 6225610
    Abstract: Use of PTC circuit protection devices in motor vehicle wiring systems. The devices can replace some or all of the fuses conventionally used. Preferred devices contain PTC conductive polymers. Because the PTC devices can be reset without physical access to them, the wiring system can be arranged more efficiently and more economically. For example, the size of at least some of the wires of the harness can in many case be reduced.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: May 1, 2001
    Inventor: Malcolm R. Walsh
  • Use of PTC devices
    Patent number: 5645746
    Abstract: Use of PTC circuit protection devices in motor vehicle wiring systems. The devices can replace some or all of the fuses conventionally used. Preferred devices contain PTC conductive polymers. Because the PTC devices can be reset without physical access to them, the wiring system can be arranged more efficiently and more economically. For example, the size of at least some of the wires of the harness can in many cases be reduced.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: July 8, 1997
    Assignee: Raychem Corporation
    Inventor: Malcolm R. Walsh