Patents by Inventor Wm. David Fahey

Wm. David Fahey 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).

  • Publication number: 20060081146
    Abstract: A semiconductor bridge (SCB) device. In one embodiment, the SCB device includes a laminate layer on top of an insulating material, wherein the laminate layer comprises a series of layers of at least two reactive materials, and wherein the laminate layer comprises two relatively large sections that substantially cover the surface area of the insulating material, and a bridge section joining the two relatively large sections. At least one conductive contact pad is coupled to at least one of the series of layers, wherein a predetermined current through the conductive contact pad causes the bridge section to initiate a reaction in which the laminate layer is involved. In one embodiment, the SCB device includes an integrated diode formed by an interface of the insulating material with another material, such as a metal.
    Type: Application
    Filed: August 9, 2005
    Publication date: April 20, 2006
    Inventors: Thomas Baginski, Todd Parker, Wm. David Fahey
  • Patent number: 7004423
    Abstract: The present invention provides a fast, low-cost, small diverter capable of generating a relatively high impulse (1-5 N-sec) over a short time period. The diverter is adapted for installation in a projectile for steering the projectile in flight by ejecting an end cap or hot burning gases in response to control signals from a guidance system. In one embodiment, multiple diverters are arranged in one or more bands about a flying projectile such as a rocket.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: February 28, 2006
    Assignee: Quantic Industries, Inc.
    Inventors: Mark Folsom, Charles Piper, III, Wm. David Fahey, Jared M. McGowan
  • Patent number: 6925938
    Abstract: A semiconductor bridge (SCB) device. In one embodiment, the SCB device includes a laminate layer on top of an insulating material, wherein the laminate layer comprises a series of layers of at least two reactive materials, and wherein the laminate layer comprises two relatively large sections that substantially cover the surface area of the insulating material, and a bridge section joining the two relatively large sections. At least one conductive contact pad is coupled to at least one of the series of layers, wherein a predetermined current through the conductive contact pad causes the bridge section to initiate a reaction in which the laminate layer is involved. In one embodiment, the SCB device includes an integrated diode formed by an interface of the insulating material with another material, such as a metal.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: August 9, 2005
    Assignees: Quantic Industries, Inc., Auburn University
    Inventors: Thomas A. Baginski, Todd S. Parker, Wm. David Fahey
  • Patent number: 6772692
    Abstract: A semiconductor bridge (SCB) device. In one embodiment, the SCB device includes a laminate layer on top of an insulating material, wherein the laminate layer comprises a series of layers of at least two reactive materials, and wherein the laminate layer comprises two relatively large sections that substantially cover the surface area of the insulating material, and a bridge section joining the two relatively large sections. At least one conductive contact pad is coupled to at least one of the series of layers, wherein a predetermined current through the conductive contact pad causes the bridge section to initiate a reaction in which the laminate layer is involved. In one embodiment, the SCB device includes an integrated diode formed by an interface of the insulating material with another material, such as a metal.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: August 10, 2004
    Assignees: LifeSparc, Inc., Auburn University
    Inventors: Thomas A. Baginski, Todd S. Parker, Wm. David Fahey
  • Publication number: 20030197088
    Abstract: The present invention provides a fast, low-cost, small diverter capable of generating a relatively high impulse (1-5 N-sec) over a short time period. The diverter is adapted for installation in a projectile for steering the projectile in flight by ejecting an end cap in response to control signals from a guidance system. In one embodiment, multiple diverters are arranged in one or more bands about a flying projectile such as a rocket. Each diverter includes a header assembly providing a mounting surface and support for a plurality of electrical leads, a reactive semiconductor bridge mounted on the mounting surface of the header assembly and providing an electrical path for the electrical leads at a certain voltage across the bridge, a diverter body supporting the header assembly and containing a prime, wherein the reactive semiconductor bridge and the prime define a gap, and an end cap attached to the diverter body and containing a propellant.
    Type: Application
    Filed: February 8, 2001
    Publication date: October 23, 2003
    Inventors: Mark Folsom, Charles Piper, Wm. David Fahey, Jared M. McGowan
  • Publication number: 20030192445
    Abstract: A semiconductor bridge (SCB) device. In one embodiment, the SCB device includes a laminate layer on top of an insulating material, wherein the laminate layer comprises a series of layers of at least two reactive materials, and wherein the laminate layer comprises two relatively large sections that substantially cover the surface area of the insulating material, and a bridge section joining the two relatively large sections. At least one conductive contact pad is coupled to at least one of the series of layers, wherein a predetermined current through the conductive contact pad causes the bridge section to initiate a reaction in which the laminate layer is involved. In one embodiment, the SCB device includes an integrated diode formed by an interface of the insulating material with another material, such as a metal.
    Type: Application
    Filed: April 18, 2003
    Publication date: October 16, 2003
    Applicants: Auburn University, LifeSparc, Inc.
    Inventors: Thomas A. Baginski, Todd S. Parker, Wm. David Fahey
  • Publication number: 20030047101
    Abstract: Methods and systems for laser diode ignition of field cannons and weaponry. A series of one or more laser diodes or laser diode array, bars or stripes that are configured to optically pump a collimator which may be formed of materials to provide a lasing medium. The energy output of these devices can be combined when configured as an array or a series of redundant laser diodes assemblies to provide safe and reliable ignition systems. The collimator may direct the output from these laser diode assemblies as multiple collimated ignition beams. The laser diode assemblies may optically end pump and/or side pump the collimator or collimating rod to deliver a more directed energy output to artillery propellant. Additionally, the duration of the pulses may be controlled and extended as necessary to help ensure proper ignition of the propellant.
    Type: Application
    Filed: June 6, 2002
    Publication date: March 13, 2003
    Inventors: Mark Folsom, Wm. David Fahey, Joseph E. Carvalho, Tom Butterfield, Robert M. Valenti
  • Publication number: 20020166924
    Abstract: A canopy fragilization system comprising an ordnance-free breakable canopy for aircraft and other transport vehicles. A breakable portion of the canopy includes embedded wiring that is installed along selected portions of the canopy to be cut out or fragilized in a desired pattern. A flux compression generator (FCG) is located on board the vehicle to power the fragilization system wherein an electrical surge is generated by the FCG during an ejection sequence. The electrical surge generated by the FCG is delivered through an electrically conductive cable to the wired canopy thereby fragilizing and structurally weakening the canopy. Methods and apparatus are further provided for fragilizing an aircraft canopy by delivering an electrical surge from a compact FCG to a pre-wired canopy.
    Type: Application
    Filed: May 7, 2002
    Publication date: November 14, 2002
    Inventor: Wm. David Fahey
  • Patent number: 6367735
    Abstract: The present invention provides a fast, low-cost, small diverter capable of generating a relatively high impulse (1-5 N-sec) over a short time period. The diverter is adapted for installation in a projectile for steering the projectile in flight by ejecting an end cap in response to control signals from a guidance system. In one embodiment, multiple diverters are arranged in one or more bands about a flying projectile such as a rocket. Each diverter includes a header assembly providing a mounting surface and support for a plurality of electrical leads, a reactive semiconductor bridge mounted on the mounting surface of the header assembly and providing an electrical path for the electrical leads at a certain voltage across the bridge, a diverter body supporting the header assembly and containing a prime, wherein the reactive semiconductor bridge and the prime define a gap, and an end cap attached to the diverter body and containing a propellant.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: April 9, 2002
    Assignee: Quantic Industries, Inc.
    Inventors: Mark Folsom, Charles Piper, III, Wm. David Fahey, Jared M. McGowan