Patents by Inventor Douglas A. Fisher, Jr.

Douglas A. Fisher, Jr. 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).

  • Method and apparatus for rapid severance of a decoy towline
    Patent number: 8387501
    Abstract: A method and apparatus for rapidly severing a decoy towline extending from an aircraft by a mechanical spring actuated cutting blade and a thermal fuse type of release mechanism eliminating a pyrotechnic actuation device. The cutting blade is biased toward cutting engagement with the towline by a preloaded coil compression spring retained in the loaded position by a length of a polymer cord. The polymer cord has a heater wire wrapped about a portion of the cord which is connected to a DC voltage supply. The heater wire melts the cords when electrically connected to the DC power supply which releases the restraint on the spring which then drives the cutting blade into severing engagement with the towline.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: March 5, 2013
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: James J. Jordan, Daniel J. Murphy, Douglas A. Fisher, Jr., Tyler Forbes
  • Method and apparatus for rapid severance of a decoy towline
    Publication number: 20100257983
    Abstract: A method and apparatus for rapidly severing a decoy towline extending from an aircraft by a mechanical spring actuated cutting blade and a thermal fuse type of release mechanism eliminating a pyrotechnic actuation device. The cutting blade is biased toward cutting engagement with the towline by a preloaded coil compression spring retained in the loaded position by a length of a polymer cord. The polymer cord has a heater wire wrapped about a portion of the cord which is connected to a DC voltage supply. The heater wire melts the cords when electrically connected to the DC power supply which releases the restraint on the spring which then drives the cutting blade into severing engagement with the towline.
    Type: Application
    Filed: April 10, 2009
    Publication date: October 14, 2010
    Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.
    Inventors: James J. Jordan, Daniel J. Murphy, Douglas A. Fisher, JR., Tyler Forbes