Patents by Inventor Douglas R. Browning

Douglas R. Browning 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: 20220297591
    Abstract: A flatbed rolling tarp system is a tarp covered structure that retracts and rolls from front to rear and rear to front or a track that is installed on a flatbed trailer. It's only purpose is to cover cargo. My innovation is to integrate pulleys and related components with main bow(s) enabling driver/operator (using ropes from the ground) to pull tie-downs from one side of system, up and over pulleys then release them on opposite side of system. Pulleys will be swivelable, removable, relocatable, and lockable.
    Type: Application
    Filed: April 1, 2022
    Publication date: September 22, 2022
    Inventor: Douglas R. Brown
  • Patent number: 9693397
    Abstract: Apparatus is provided for inductively heat treating a circular surface of annular workpieces where at least one inductor pair is used to perform a scan induction heat treatment of the circular surface. Controlled movement of the inductors and application of quenchant is provided particularly at the initial and final heat treatment locations on the circular surface to enhance metallurgical uniformity of the annular workpiece at these locations. In combination with controlled movement of the inductors, a simultaneous power-frequency control scheme can be applied to the inductors during the heat treatment process with the apparatus.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: June 27, 2017
    Assignee: INDUCTOHEAT, INC.
    Inventors: Gary A. Doyon, Frank Andrä, Douglas R. Brown, Don L. Loveless, Valery I. Rudnev
  • Publication number: 20150319810
    Abstract: Apparatus is provided for inductively heat treating a circular surface of annular workpieces where at least one inductor pair is used to perform a scan induction heat treatment of the circular surface. Controlled movement of the inductors and application of quenchant is provided particularly at the initial and final heat treatment locations on the circular surface to enhance metallurgical uniformity of the annular workpiece at these locations. In combination with controlled movement of the inductors, a simultaneous power-frequency control scheme can be applied to the inductors during the heat treatment process with the apparatus.
    Type: Application
    Filed: July 13, 2015
    Publication date: November 5, 2015
    Inventors: Gary A. DOYON, Frank ANDRÄ, Douglas R. BROWN, Don L. LOVELESS, Valery I. RUDNEV
  • Patent number: 9084297
    Abstract: Apparatus and method are provided for inductively heat treating a circular surface of annular workpieces where at least one inductor pair is used to perform a scan induction heat treatment of the circular surface. Controlled movement of the inductors and application of quenchant is provided particularly at the initial and final heat treatment locations on the circular surface to enhance metallurgical uniformity of the annular workpiece at these locations. In combination with controlled movement of the inductors, a simultaneous power-frequency control scheme can be applied to the inductors during the heat treatment process.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: July 14, 2015
    Assignee: INDUCTOHEAT, INC.
    Inventors: Gary A. Doyon, Frank Andrä, Douglas R. Brown, Don L. Loveless, Valery I. Rudnev
  • Publication number: 20120279268
    Abstract: Roll forging of an annular article of manufacture is accomplished with electric induction heating of the workpiece simultaneously during the roll forging process as required to keep the workpiece at optimum forging temperature during the roll forging process.
    Type: Application
    Filed: May 3, 2012
    Publication date: November 8, 2012
    Inventors: Don L. LOVELESS, Douglas R. BROWN, Joseph C. CERNY
  • Patent number: 8247749
    Abstract: Large, non-unitarily forged shaft workpieces such as a crankshaft have successive shaft features inductively heated and forged without cool down between each sectional forging process. The temperature profile along the axial length of the next section of the shaft workpiece to be inductively heated and forged is measured prior to heating, and the induced heat energy along the axial length of the next section is dynamically adjusted responsive to the measured temperature profile to achieve a required pre-forge temperature distribution along the axial length of the next section prior to forging.
    Type: Grant
    Filed: July 3, 2010
    Date of Patent: August 21, 2012
    Assignee: Inductoheat, Inc.
    Inventors: Gary A. Doyon, Douglas R. Brown, Don L. Loveless, Valery I. Rudnev
  • Patent number: 8222576
    Abstract: Apparatus and method are provided for induction heating of one or more components of a complex-shaped workpiece. The component is positioned within an opening formed by opposing pairs of arcuate coil structures formed in opposing inductor segments. One inductor segment is formed from electrically isolated inner and outer active inductor segments connected to one or more power supplies, while the other inductor segment is formed from electrically isolated inner and outer passive inductor segments that are magnetically coupled with respective inner and outer active inductor segments. Changing the output electrical parameters of the one or more power supplies controls the induction hardening along the transverse width of the workpiece with optional flux concentrators between opposing pairs of arcuate coil structures.
    Type: Grant
    Filed: January 16, 2010
    Date of Patent: July 17, 2012
    Assignee: Inductoheat, Inc.
    Inventors: Gary A. Doyon, Don L. Loveless, Douglas R. Brown, Valery I. Rudnev, Timothy G. Boussie, Glenville Colin Desmier
  • Publication number: 20110248023
    Abstract: Apparatus and method are provided for inductively heat treating a circular surface of annular workpieces where at least one inductor pair is used to perform a scan induction heat treatment of the circular surface. Controlled movement of the inductors and application of quenchant is provided particularly at the initial and final heat treatment locations on the circular surface to enhance metallurgical uniformity of the annular workpiece at these locations. In combination with controlled movement of the inductors, a simultaneous power-frequency control scheme can be applied to the inductors during the heat treatment process.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 13, 2011
    Inventors: Gary A. DOYON, Frank ANDRÄ, Douglas R. BROWN, Don L. LOVELESS, Valery I. RUDNEV
  • Publication number: 20110000905
    Abstract: Large, non-unitarily forged shaft workpieces such as a crankshaft have successive shaft features inductively heated and forged without cool down between each sectional forging process. The temperature profile along the axial length of the next section of the shaft workpiece to be inductively heated and forged is measured prior to heating, and the induced heat energy along the axial length of the next section is dynamically adjusted responsive to the measured temperature profile to achieve a required pre-forge temperature distribution along the axial length of the next section prior to forging.
    Type: Application
    Filed: July 3, 2010
    Publication date: January 6, 2011
    Inventors: Gary A. DOYON, Douglas R. BROWN, Don L. LOVELESS, Valery I. RUDNEV
  • Patent number: 7786285
    Abstract: This invention is directed to preparation and expression of synthetic genes encoding polypeptides containing protective epitopes of botulinum neurotoxin (BoNT). The invention is also directed to production of immunogenic peptides encoded by the synthetic genes, as well as recovery and purification of the immunogenic peptides from recombinant organisms. The invention is also directed to methods of vaccination against botulism using the expressed peptides.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: August 31, 2010
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Leonard A. Smith, Michael P. Byrne, John L. Middlebrook, Hugh Lapenotiere, Michael A. Clayton, Douglas R. Brown
  • Publication number: 20100181305
    Abstract: Apparatus and method are provided for induction heating of one or more components of a complex-shaped workpiece. The component is positioned within an opening formed by opposing pairs of arcuate coil structures formed in opposing inductor segments. One inductor segment is formed from electrically isolated inner and outer active inductor segments connected to one or more power supplies, while the other inductor segment is formed from electrically isolated inner and outer passive inductor segments that are magnetically coupled with respective inner and outer active inductor segments. Changing the output electrical parameters of the one or more power supplies controls the induction hardening along the transverse width of the workpiece with optional flux concentrators between opposing pairs of arcuate coil structures.
    Type: Application
    Filed: January 16, 2010
    Publication date: July 22, 2010
    Inventors: Gary A. DOYON, Don L. LOVELESS, Douglas R. BROWN, Valery I. RUDNEV, Timothy G. BOUSSIE, Glenville Colin DESMIER
  • Patent number: 7324908
    Abstract: An embodiment of the invention generally pertains to a method of compensating for temperature variations in an eddy current sensor signal. The method may include the steps of receiving an initial signal from an eddy current sensor (ECS) in response to a conductive element passing the ECS and sensing an ECS temperature and an ECS board temperature. The method may also include determining a subset of correction coefficients based on the ECS temperature and the ECS board temperature and determining a temperature correction factor from the subset of correction coefficients. The method may then compute a temperature corrected signal from the initial signal and the temperature correction factor.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: January 29, 2008
    Assignee: General Dynamics Advanced Information Systems, Inc.
    Inventors: Douglas R. Browning, Victor R. Mishkevich, Richard T. Gieske
  • Patent number: 7323868
    Abstract: An embodiment of the invention generally relates to a temperature-independent method of determining an engine health parameter, namely stand-off distance, between an eddy current sensor and a conductive element. The method includes receiving a signal from the eddy current sensor and demodulating a waveform from the received signal. The method also includes determining a predetermined set of substantially temperature-independent parameters from the waveform and determining the stand-off distance based on the predetermined set of substantially temperature-independent parameters.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: January 29, 2008
    Assignee: General Dynamics Advanced Information Systems, Inc.
    Inventors: Victor G. Mishkevich, Douglas R. Browning, Richard T. Gieske
  • Patent number: 7214787
    Abstract: This invention is directed to preparation and expression of synthetic genes encoding polypeptides containing protective epitopes of botulinum neurotoxin (BoNT). The invention is also directed to production of immunogenic peptides encoded by the synthetic genes, as weel as recovery and purification of the immunogenic peptides from recombinant organisms. The invention is also directed to methods of vaccination against botulism using the expressed peptides.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: May 8, 2007
    Assignee: United States of America as Represented by the Secretary of the Army
    Inventors: Leonard A. Smith, Michael P. Byrne, John L. Middlebrook, Hugh Lapenotiere, Michael A. Clayton, Douglas R. Brown
  • Patent number: 7162384
    Abstract: An embodiment of the invention generally pertains to a method of compensating for temperature variations in an eddy current sensor signal. The method may include the steps of receiving an initial signal from an eddy current sensor (ECS) in response to a conductive element passing the ECS and sensing an ECS temperature and an ECS board temperature. The method may also include determining a subset of correction coefficients based on the ECS temperature and the ECS board temperature and determining a temperature correction factor from the subset of correction coefficients. The method may then compute a temperature corrected signal from the initial signal and the temperature correction factor.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: January 9, 2007
    Assignee: General Dynamics Advanced Information
    Inventors: Douglas R. Browning, Victor G. Mishkevich, Richard T. Gieske
  • Patent number: 7081529
    Abstract: This invention is directed to preparation and expression of synthetic genes encoding polypeptides containing protective epitopes of botulinum neurotoxin (BoNT). The invention is also directed to production of immunogenic peptides encoded by the synthetic genes, as weel as recovery and purification of the immunogenic peptides from recombinant organisms. The invention is also directed to methods of vaccination against botulism using the expressed peptides.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: July 25, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Leonard A. Smith, Michael P. Byrne, John L. Middlebrook, Hugh Lapenotiere, Michael A. Clayton, Douglas R. Brown
  • Publication number: 20030009025
    Abstract: This invention is directed to preparation and expression of synthetic genes encoding polypeptides containing protective epitopes of botulinum neurotoxin (BoNT). The invention is also directed to production of immunogenic peptides encoded by the synthetic genes, as weel as recovery and purification of the immunogenic peptides from recombinant organisms. The invention is also directed to methods of vaccination against botulism using the expressed peptides.
    Type: Application
    Filed: July 20, 2001
    Publication date: January 9, 2003
    Inventors: Leonard A. Smith, Michael P. Byrne, John L. Middlebrook, Hugh Lapenotiere, Michael A. Clayton, Douglas R. Brown
  • Patent number: 5558477
    Abstract: Boring bar vibration damping is improved by a novel use of the electromechanical properties of the piezoelectric actuator material. A negative capacitance shunt circuit is provided in which a voltage-controlled voltage-source continuously simulates a negative capacitance that is substantially equal in magnitude but opposite in phase to the capacitance of the piezoelectric material. The negative capacitance is shunted across the piezoelectric device, effectively compensating for the capacitance of the device across a broad frequency band. The voltages generated in the piezoelectric element in response to mechanical deformation induced by broadband vibrations of the structure during damping operations, may then be completely resistively dissipated, thereby enhancing the mechanical damping.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: September 24, 1996
    Assignee: Lucent Technologies Inc.
    Inventors: Douglas R. Browning, Woodson D. Wynn
  • Patent number: 5325438
    Abstract: In an active control noise-cancelling muffler system, a substantially complete acoustic and mechanical decoupling of the noise-cancelling signal pipe from the gas exhaust pipe is achieved. The noise-cancelling signal delivery pipe is physically isolated and separate from the gas exhaust pipe, and is mounted separately. The outlet end of both pipes are essentially coplanar. Using pressure sensors on the tubes, the system also accurately and continuously electronically replicates the mixing of the exhaust noise and the noise-cancelling acoustic energy that goes on in the space immediately beyond the two outlets. This electronic signal is a useful alternative for a direct measure of the resultant two acoustic waves when they mix in the space beyond the tube outlets, and allows the system to continuously estimate the degree of success of noise cancellation without having to measure it directly when impractical.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: June 28, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Douglas R. Browning, Michael A. Zuniga
  • Patent number: 5033028
    Abstract: This disclosure describes apparatus and method for overcoming stroke limitations of moving coil reaction-mass vibration dampers, by recovering armature stroke displacement. The coil housing is selectively coupled or de-coupled to the vibrating structure. If, when the armature reaches its travel limit, sufficient damping energy has not been applied to the structure, the coil-housing assembly is decoupled from the structure while the armature is pulsed back to its zero displacement position. The housing then is re-coupled to the surface, having displaced some determinable distance from its previous location relative to the surface. Additional armature movement in the same direction as the previous armature stroke is applied, thereby generating the needed additional damping force. The resetting of the housing to its normal position vis-a-vis the vibrating structure can occur at a selected time in the damping force-generating cycle when reset does not impart an undesired reaction to the vibrating structure.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: July 16, 1991
    Assignee: AT&T Bell Laboratories
    Inventor: Douglas R. Browning