Patents by Inventor James M. Schaff

James M. Schaff 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).

  • Patent number: 6300893
    Abstract: An emergency passive radar locating device for use by missing persons or craft to enhance their survivability in a search and rescue operation. The emergency passive radar locating device comprises an array of eight radar corner reflectors. Each corner reflector of the emergency passive radar locating device has three radar signal reflective surfaces which are mutually perpendicular. When fully inflated the emergency passive radar locating device is spherical in shape with three mutually perpendicular toroidal flotation rings.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: October 9, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James M. Schaff, Steven L. Ball
  • Patent number: 5096628
    Abstract: An electrically controllable pyrofuze pin device for ordnance device actiion which functionally replaces the mechanical barrier and arming wire or other rigid and removable means used to provide ordnance device activation. The device includes a pyrofuze pin, a connecting ignitor transfer charge, and ignitor, and electrical terminals to provide power from an external power supply, and a weatherproof housing. When electrically activated the pyrofuze pin is reduced to molten by-products which functionally eliminate the mechanical barrier and permits the activation of the ordnance device.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: March 17, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James M. Schaff, Amos J. Diede
  • Patent number: 5042357
    Abstract: A pyrofuze ordnance arming system, for air delivered ordnance, which provs a removable physical barrier to prevent the premature operation of ordnance device arming activation systems. An electrothermally initiated, alloyably removable pyrofuze pin extending from a pyrofuze device is employed as a physical barrier in an arming system to replace the conventional arming wires. The system increases safety and reliability for ordnance arming while decreasing the complexity and labor involved in preparing and loading ordnance on aircraft.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: August 27, 1991
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James M. Schaff, Charles L. Maples, Stephen F. Lyda, David W. Brewton, Stephen R. Ritchie
  • Patent number: 5036769
    Abstract: An electrically controllable "Pyrofuze" pin device for ordnance device acation which functionally replaces the mechanical barrier and arming wire or other rigid and removable means used to provide ordnance device activation. The device includes a "Pyrofuze" pin, a connecting ignitor transfer charge, and ignitor, and electrical terminals to provide power from an external power supply, and a weatherproof housing. When electrically activated the "Pyrofuze" pin is reduced to molten by-products which functionally eliminate the mechanical barrier and permits the activation of the ordnance device.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: August 6, 1991
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James M. Schaff, Amos J. Diede