Patents by Inventor Roland A. Gilbert

Roland A. Gilbert 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: 9588201
    Abstract: A system and method for detecting at least one compound in a material under test (MUT) is presented. The system includes a Nuclear Quadrupole Resonance (NQR) frequency generator that generates an NQR frequency (fNQR) and propagates the fNQR frequency toward the MUT. A microwave frequency generator generates a microwave frequency (fmw) and propagates the fmw frequency toward the MUT. A RF output probe detects radio frequency (RF) emissions returned from the MUT. A detector detects the at least one compound based, at least in part, on whether the RF emissions returned from the MUT include any frequencies corresponding to fmw+/?(n×fNQR), where n is an integer of 2 or greater. In the preferred embodiment, n=2.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: March 7, 2017
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Don A. Harris, Michael J. Bowers, II, Roland A. Gilbert, Tadd C. Kippeny
  • Patent number: 9476953
    Abstract: A system and method for detecting at least one material under test (MUT) is presented. A Nuclear Quadrupole Resonance (NQR) measurement system includes a waveform generator configured to generate a continuous wave (CW) input signal comprising one or more frequencies. An RF shielded chamber receives the at least one MUT that is carried by a person walking through the chamber. A probe within the chamber illuminates the MUT with the CW signal and simultaneously receives possible NQR emissions from the at least one MUT. A bridge circuit is utilized to cancel the strong excitation CW signal from the generator which would otherwise mask the weak NQR emissions from the MUT that are received and detected by the measurement system. A detector can then detect the MUT based, at least in part, on the resonance signal.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: October 25, 2016
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Paul A. Zank, David H. Herlihy, Eldon M. Sutphin, Roland A. Gilbert, Paul E. Gili
  • Publication number: 20160298548
    Abstract: The present invention relates to an engine (1) with a modular structure comprising a plurality of coaxial modules (A, B, C) with, at one end, a first module (A) comprising a power transmission shaft (3) and a speed reduction gear (7), said power transmission shaft being driven via the speed reduction gear (7) by a turbine shaft (2) secured to one (C) of said coaxial modules that is separate from the first module, the speed reduction gear comprising a drive means (8 and 9) fixed to the turbine shaft (2) and to a journal (13) of a shaft of a low-pressure compressor rotor (1a), characterized in that it comprises a first nut (16) for fastening the drive means to the journal and a second nut (14) for fastening the drive means to the turbine shaft.
    Type: Application
    Filed: November 6, 2014
    Publication date: October 13, 2016
    Inventors: Roland Gilbert Michel Brault, Nathalie Nowakowski
  • Publication number: 20160169014
    Abstract: The invention relates to a turbine engine impeller, comprising a disc bearing vanes, the roots of which are fitted in grooves which are substantially parallel to an axis of revolution of the disc, the root of each vane being connected to a blade by an integrated platform, the platforms of said vanes cooperating so as to form a radially inner wall of a duct for a flow passing through the blades, the impeller further comprising two independent annular plates which are fixed to the disc, a first of said plates being mounted upstream of the disc and comprising a transverse annular portion which is supported on an upstream face of the roots of the vanes, and a second of said plates being mounted downstream of the disc and comprising a transverse annular portion which is supported on a downstream face of the roots of the vanes, characterised in that the integrated platform of each vane stops axially, upstream and downstream, to the right of the upstream and downstream transverse faces of the root, in that said tran
    Type: Application
    Filed: December 10, 2015
    Publication date: June 16, 2016
    Inventors: Jean-Philippe Antoine Beaujard, Roland Gilbert Michel Brault, Nathalie Nowakowski
  • Patent number: 8791875
    Abstract: A method and apparatus is provided for avoiding pattern blockage due to scatter from an object in which an artificial surface directs the energy from the antenna prior to arriving at a blocking structure such that either the wave fronts of the energy are linear when they arrive at the blocking structure or the phase of the energy incident on the object is adjusted such that the energy reflected from the object is in phase with energy directly from the antenna radiating elsewhere in the far field pattern, or both.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: July 29, 2014
    Assignee: BAE Systems Information and Electronics Systems Integration Inc.
    Inventors: John T. Apostolos, David P. Charette, Roland A. Gilbert
  • Patent number: 8664807
    Abstract: A system and method for distributing the power of an electromagnetic signal is presented. In one embodiment, a power distribution cavity includes, a planar cavity, input ports and output ports. The planar cavity is formed with a metallic sheet in the shape of a star pattern with a plurality of elongated star arms extending from a round center portion of the metallic sheet. The input ports are attached to the round center portion of the metallic sheet for receiving an input signal. The signals entering the cavity from the input ports creating independent resonant modes within the cavity that combine producing a tapered aperture distribution of signals at the output ports. The output ports are attached near to the outward ends of the elongated star arms. The planar cavity is thus configured to propagate electromagnetic fields at the output ports that were excited within the cavity by the input ports.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: March 4, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Roland A. Gilbert, Michael D. Blazej
  • Publication number: 20130021112
    Abstract: A method and apparatus is provided for avoiding pattern blockage due to scatter from an object in which an artificial surface directs the energy from the antenna prior to arriving at a blocking structure such that either the wave fronts of the energy are linear when they arrive at the blocking structure or the phase of the energy incident on the object is adjusted such that the energy reflected from the object is in phase with energy directly from the antenna radiating elsewhere in the far field pattern, or both.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 24, 2013
    Inventors: John T. Apostolos, David P. Chrette, Roland A. Gilbert
  • Publication number: 20110163610
    Abstract: A system and method for distributing the power of an electromagnetic signal is presented. In one embodiment, a power distribution cavity includes, a planar cavity, input ports and output ports. The planar cavity is formed with a metallic sheet in the shape of a star pattern with a plurality of elongated star arms extending from a round center portion of the metallic sheet. The input ports are attached to the round center portion of the metallic sheet for receiving an input signal. The signals entering the cavity from the input ports creating independent resonant modes within the cavity that combine producing a tapered aperture distribution of signals at the output ports. The output ports are attached near to the outward ends of the elongated star arms. The planar cavity is thus configured to propagate electromagnetic fields at the output ports that were excited within the cavity by the input ports.
    Type: Application
    Filed: January 6, 2011
    Publication date: July 7, 2011
    Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.
    Inventors: ROLAND A. GILBERT, MICHAEL D. BLAZEJ
  • Publication number: 20110133896
    Abstract: A method for mounting multiple small RFID chips onto larger antenna. The chips are mechanically aligned with an interdigitated gap at the feed point of the antenna by electrostatic or magnetic techniques. In an alternate embodiment RF field coupling between the chips and the antenna is employed.
    Type: Application
    Filed: February 11, 2011
    Publication date: June 9, 2011
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Court E. ROSSMAN, Zane LO, Roland A. GILBERT, John A. WINDYKA
  • Patent number: 7911343
    Abstract: A method for mounting multiple small RFID chips onto larger antenna. The chips are mechanically aligned with an interdigitated gap at the feed point of the antenna by electrostatic or magnetic techniques. In an alternate embodiment RF field coupling between the chips and the antenna is employed.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: March 22, 2011
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Court E. Rossman, Zane Lo, Roland A. Gilbert, John A. Windyka
  • Patent number: 7228156
    Abstract: An RF-actuated microelectromechanical systems (MEMS) switch for use with switchable RF structures such as antennas and reflectors is disclosed. An antenna within each MEMS switch module is coupled to a circuit that provides a trigger voltage based on an RF control signal received at the antenna. The trigger voltage output of the circuit is used as the control the MEMS switch. This allows arrays of MEMS switch modules to be actuated by remotely generated radio frequency signals thus alleviating the need for running metallic conductors or optical fibers to each MEMS switch. Frequency response characteristics, phasing, reflectivity, and directionality characteristics may be altered in real-time.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: June 5, 2007
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Roland A Gilbert
  • Patent number: 7109927
    Abstract: A miniature broadband monopole antenna design configured with integrated band-selecting filtering is disclosed. The antenna is electrically folded, and includes top and bottom monopole sections, with a meanderline to provide an inductive load between the two sections. The overall antenna structure can be embedded in a relatively small, RF transparent, composite structure (e.g., such as the fin of a guided munition), and has minimal impact on aerodynamics (low drag). The top, bottom, and meanderline elements of the antenna operate together to collectively provide multi-band operation (e.g., 30 MHz to 3 GHz).
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: September 19, 2006
    Assignee: Bae Systems Information and Electronic Systems Integration INC
    Inventors: Roland A Gilbert, John T Apostolos
  • Publication number: 20060119526
    Abstract: A miniature broadband monopole antenna design configured with integrated band-selecting filtering is disclosed. The antenna is electrically folded, and includes top and bottom monopole sections, with a meanderline to provide an inductive load between the two sections. The overall antenna structure can be embedded in a relatively small, RF transparent, composite structure (e.g., such as the fin of a guided munition), and has minimal impact on aerodynamics (low drag). The top, bottom, and meanderline elements of the antenna operate together to collectively provide multi-band operation (e.g., 30 MHz to 3 GHz).
    Type: Application
    Filed: December 7, 2004
    Publication date: June 8, 2006
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Roland Gilbert, John Apostolos
  • Patent number: 6968728
    Abstract: The present invention relates to an apparatus for measuring the capacitance and the dissipation factor in a transformer bushing and extracting gas dissolved in the insulating fluid of said bushing. The apparatus comprises a porous cylindrical member associated with a tap connector and covered by a thin layer of a gas permeable but liquid impermeable membrane. The porous member allows passive diffusion of the permeated gas extracted from the insulating fluid of a transformer bushing to a gas storage chamber for further analysis, thereby helping to prevent high costs related to damage or destruction of the bushing.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: November 29, 2005
    Assignee: Hydro Quebec
    Inventors: Roland Gilbert, Jocelyn Jalbert, Hong Phuong Nguyen, René J. Demers
  • Publication number: 20050107125
    Abstract: An RF-actuated microelectromechanical systems (MEMS) switch for use with switchable RF structures such as antennas and reflectors is disclosed. An antenna within each MEMS switch module is coupled to a circuit that provides a trigger voltage based on an RF control signal received at the antenna. The trigger voltage output of the circuit is used as the control the MEMS switch. This allows arrays of MEMS switch modules to be actuated by remotely generated radio frequency signals thus alleviating the need for running metallic conductors or optical fibers to each MEMS switch. Frequency response characteristics, phasing, reflectivity, and directionality characteristics may be altered in real-time.
    Type: Application
    Filed: December 9, 2004
    Publication date: May 19, 2005
    Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.
    Inventor: Roland Gilbert
  • Patent number: 6882322
    Abstract: A gapless Vivaldi notch/meander line antenna is provided having a top plate with a Vivaldi notch, a cavity and a rearwardly-extending notch, with the top plate having integral side plates and a meander line bridging the rearwardly-extending notch at its distal end.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: April 19, 2005
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: John T. Apostolos, Roland A. Gilbert
  • Publication number: 20050078043
    Abstract: A gapless Vivaldi notch/meander line antenna is provided having a top plate with a Vivaldi notch, a cavity and a rearwardly-extending notch, with the top plate having integral side plates and a meander line bridging the rearwardly-extending notch at its distal end.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 14, 2005
    Inventors: John Apostolos, Roland Gilbert
  • Patent number: 6865402
    Abstract: The present invention features an RF-actuated microelectromechanical systems (MEMS) switch for use with switchable RF structures such as antennas. An antenna within each MEMS switch module is coupled to a tuned circuit and a detector. The DC voltage output of the detector is used as the control input to the MEMS switch. This allows arrays of MEMS switch modules to be actuated by remotely generated radio frequency signals thus alleviating the need for running metallic conductors or optical fibers to each MEMS switch. The MEMS switch is particularly suited for use in conjunction with both passive and active antenna elements to allow reconfiguration of antenna or other RF structures. Frequency response characteristics, phasing, and directionality characteristics may be altered easily.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: March 8, 2005
    Assignee: Bae Systems Information and Electronic Systems Integration INC
    Inventor: Roland Gilbert
  • Publication number: 20050005674
    Abstract: The present invention relates to an apparatus for measuring the capacitance and the dissipation factor in a transformer bushing and extracting gas dissolved in the insulating fluid of said bushing. The apparatus comprises a porous cylindrical member associated with a tap connector and covered by a thin layer of a gas permeable but liquid impermeable membrane. The porous member allows passive diffusion of the permeated gas extracted from the insulating fluid of a transformer bushing to a gas storage chamber for further analysis, thereby helping to prevent high costs related to damage or destruction of the bushing.
    Type: Application
    Filed: July 10, 2003
    Publication date: January 13, 2005
    Inventors: Roland Gilbert, Jocelyn Jalbert, Hong Nguyen, Rene Demers
  • Patent number: 6839036
    Abstract: Combined Vivaldi notch and meander line loaded antennas are concatenated in an array to provide an ultra wideband antenna having a decreased low frequency cut-off due to the concatenation. In the concatenation process, plates of adjacent antennas are shared so that one plate is used for both of the adjacent antennas. In a preferred embodiment, the side plates and the top and bottom plates are identically configured.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: January 4, 2005
    Assignee: BAE Systems Information and Electronic Systems Integration, Inc.
    Inventors: John T. Apostolos, Roland A. Gilbert