Patents by Inventor Scott Caldwell

Scott Caldwell 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: 20080139809
    Abstract: Compounds incorporating aryl substituted olefinic amine are provided. Representative compounds are (4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-pyrimidinyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-methoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(6-amino-5-methyl-3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-bromo-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-ethoxy-3-pyridyl)-4-penten-2-amine, (2S)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine and (2S)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 12, 2008
    Inventors: William Scott Caldwell, Gary Maurice Dull, Balwinder Singh Bhatti, Srishailkumar B. Hadimani, Haeil Park, Jared Miller Wagner, Peter Anthony Crooks
  • Patent number: 7343218
    Abstract: A feedback control system for controlling a laser source. The feedback control system includes a laser source outputting laser energy and an optical sensor detecting the laser energy. The optical sensor outputs a measured signal in response to a measured amount of the laser energy. The system further includes an optical device receiving the laser energy and directing the laser energy to a predetermined location. The optical device reflects a first portion of the laser energy toward the optical sensor. A controller receives the measured signal from the optical sensor and calculates the amount of the first portion of the laser energy. The controller then adjusts the laser source to correct for the losses associated with the first portion of the laser energy reflecting from the optical device to obtain a predetermined amount of laser energy at the predetermined location.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: March 11, 2008
    Assignee: Branson Ultrasonics Corporation
    Inventors: Scott Caldwell, William Moreau, Jr., Hugh McNair, Scott Latona
  • Patent number: 7307092
    Abstract: Compounds incorporating aryl substituted olefinic amine are provided. Representative compounds are (4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-pyrimidinyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-methoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(6-amino-5-methyl-3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-bromo-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-ethoxy-3-pyridyl)-4-penten-2-amine, (2S)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine and (2S)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: December 11, 2007
    Assignee: Targacept, Inc.
    Inventors: William Scott Caldwell, Gary Maurice Dull, Balwinder Singh Bhatti, Srishailkumar B. Hadimani, Haeil Park, Jared Miller Wagner, Peter Anthony Crooks
  • Publication number: 20070265726
    Abstract: A feedback control system for controlling a laser source. The feedback control system includes a laser source outputting laser energy and an optical sensor detecting the laser energy. The optical sensor outputs a measured signal in response to a measured amount of the laser energy. The system further includes an optical device receiving the laser energy and directing the laser energy to a predetermined location. The optical device reflects a first portion of the laser energy toward the optical sensor. A controller receives the measured signal from the optical sensor and calculates the amount of the first portion of the laser energy. The controller then adjusts the laser source to correct for the losses associated with the first portion of the laser energy reflecting from the optical device to obtain a predetermined amount of laser energy at the predetermined location.
    Type: Application
    Filed: May 9, 2006
    Publication date: November 15, 2007
    Inventors: Scott Caldwell, William Moreau, Hugh McNair, Scott Latona
  • Publication number: 20070047932
    Abstract: An assembly for producing a weld coupling a first part of a workpiece to a second part of the workpiece. The assembly comprises a first incoherent light source that generates incoherent light energy and a first negative waveguide having an input end and an output end, the incoherent light energy from the first incoherent light source and that reflected by the first reflector entering the first negative waveguide at the input end, passing through the first negative waveguide and exiting the first negative waveguide at the output end.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 1, 2007
    Inventors: Scott Caldwell, Kenneth Nelson, Daniel Hershey
  • Publication number: 20070000887
    Abstract: An optical scan system welds or marks a part by directing an optical beam onto the part at a sufficient energy density level to weld or mark it. A method of controlling a pattern where the part is to be exposed to the beam at the sufficient energy density level includes disposing a waveguide between the part and an optical source of the optical scan system to prevent areas of the part that are not to be welded or marked from being exposed to the beam at the sufficient energy density level to weld or mark them, allowing the areas to be welded or marked to be exposed to the beam at the sufficient energy level. In an aspect, the waveguide prevents the beam from being reflected in an undesired direction. In an aspect, the waveguide redirects the beam from the areas of the part that are not to be welded or marked to areas that are to be welded or marked to concentrate the energy on the areas to be welded or marked.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 4, 2007
    Inventors: Scott Caldwell, Paul Rooney, Hugh McNair
  • Publication number: 20060219675
    Abstract: A laser welding apparatus having a laser source outputting a laser beam and a light transmitting device being positioned downstream from the laser source. The light transmitting device transmits the laser beam therethrough. The laser beam exiting the light transmitting device has at least a zero order light lobe and a first order light lobe, wherein the zero order light lobe and the first order light lobe together defining an initial beam width. An optical device positioned downstream from the light transmitting device converges the first order light lobe with the zero order light lobe to define a final beam width that is narrower than the initial beam width.
    Type: Application
    Filed: June 2, 2006
    Publication date: October 5, 2006
    Inventors: Scott Caldwell, Hugh McNair
  • Patent number: 7085296
    Abstract: A method and apparatus for feedback control of a laser, which includes outputting a laser beam from the laser to an optical bundle. The intensity of the laser beam is measured at a point between the laser and the optical bundle and a raw feedback signal is output in response thereto. The raw feedback signal is multiplied by a laser calibration factor and an optical bundle calibration factor and output as an adjusted feedback signal. A controller is then used to control the intensity of the laser in response to the adjusted feedback signal.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: August 1, 2006
    Assignee: Branson Ultrasonics Corporation
    Inventor: Scott Caldwell
  • Patent number: 7060826
    Abstract: Compounds incorporating aryl substituted olefinic amine are provided. Representative compounds are (4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-pyrimidinyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-methoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(6-amino-5-methyl-3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-bromo-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-ethoxy-3-pyridyl)-4-penten-2-amine, (2S)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine and (2S)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: June 13, 2006
    Assignee: Targaeept, Inc.
    Inventors: William Scott Caldwell, Gary Maurice Dull, Balwinder Singh Bhatti, Srishailkumar B. Hadimani, Haeil Park, Jared Miller Wagner, Peter Anthony Crooks
  • Patent number: 6958399
    Abstract: Compounds incorporating aryl substituted olefinic amine are provided. Representative compounds are (4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-pyrimidinyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-methoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(6-amino-5-methyl-3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-bromo-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-ethoxy-3-pyridyl)-4-penten-2-amine, (2S)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine and (2S)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: October 25, 2005
    Assignee: Targacept, Inc.
    Inventors: William Scott Caldwell, Gary Maurice Dull, Balwinder Singh Bhatti, Srishailkumar B. Hadimani, Haeil Park, Jared Miller Wagner, Peter Anthony Crooks
  • Publication number: 20050205534
    Abstract: A single and dual lensed optical waveguide capable of approximating a desired IQP light profile to produce uniform welding with two overlapping Gaussian light profiles that are mirror folded back on themselves. This allows for a resolution of the laser light that comes out of a fiber bundle in a weld width of under 1/100,000th of an inch. The results are narrow, uniform plastics TTIr welds that show no signs of bubbling.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 22, 2005
    Inventor: Scott Caldwell
  • Publication number: 20050123009
    Abstract: A method and apparatus for feedback control of a laser, which includes outputting a laser beam from the laser to an optical bundle. The intensity of the laser beam is measured at a point between the laser and the optical bundle and a raw feedback signal is output in response thereto. The raw feedback signal is multiplied by a laser calibration factor and an optical bundle calibration factor and output as an adjusted feedback signal. A controller is then used to control the intensity of the laser in response to the adjusted feedback signal.
    Type: Application
    Filed: December 5, 2003
    Publication date: June 9, 2005
    Inventor: Scott Caldwell
  • Publication number: 20050121424
    Abstract: A laser welding apparatus having a laser source outputting a laser beam and a light transmitting device, chosen from the group consisting essentially of a lightpipe and a lightguide, positioned downstream from the laser source. The light transmitting device transmits the laser beam therethrough. An optical device receives the laser beam exiting the light transmitting device and is operable to converge light lobes exiting the light transmitting device to define a final beam width. The final beam width being narrower than a beam width exiting the light transmitting device.
    Type: Application
    Filed: December 5, 2003
    Publication date: June 9, 2005
    Inventors: Scott Caldwell, Hugh McNair
  • Publication number: 20040214835
    Abstract: Compounds incorporating aryl substituted olefinic amine are provided. Representative compounds are (4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-pyrimidinyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-methoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(6-amino-5-methyl-3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (2R)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-bromo-3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-ethoxy-3-pyridyl)-4-penten-2-amine, (2S)-(4E)-N-methyl-5-(3-pyridyl)-4-penten-2-amine, (4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine and (2S)-(4E)-N-methyl-5-(5-isopropoxy-3-pyridyl)-4-penten-2-amine.
    Type: Application
    Filed: May 25, 2004
    Publication date: October 28, 2004
    Inventors: William Scott Caldwell, Gary Maurice Dull, Balwinder Singh Bhatti, Srishailkumar B. Hadimani, Haeil Park, Jared Miller Wagner, Peter Anthony Crooks
  • Patent number: 6774353
    Abstract: A radial power feedback sensor senses the power output of a fiber optic bundle. The fiber optic bundle is arranged generally radially about an axis to carry radiative energy produced by a laser. A spacer is positioned within the fiber optic bundle such that the fiber optic bundle generally surrounds the spacer. The spacer serves to enable the radiative energy to pass therethrough. A photo detector is then disposed adjacent the spacer and is operable to output a signal in response to a measured intensity of the radiative energy passing through the spacer. Accordingly, due to the surrounding of the fiber optic bundle around the photo detector, a greater number of individual photo optic lines are exposed to the photo detector, thereby decreasing the variance between the measure output and the true output of the laser.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: August 10, 2004
    Assignee: Branson Ultrasonics Corporation
    Inventors: Scott Caldwell, Robert McNair
  • Publication number: 20040118996
    Abstract: A radial power feedback sensor senses the power output of a fiber optic bundle. The fiber optic bundle is arranged generally radially about an axis to carry radiative energy produced by a laser. A spacer is positioned within the fiber optic bundle such that the fiber optic bundle generally surrounds the spacer. The spacer serves to enable the radiative energy to pass therethrough. A photo detector is then disposed adjacent the spacer and is operable to output a signal in response to a measured intensity of the radiative energy passing through the spacer. Accordingly, due to the surrounding of the fiber optic bundle around the photo detector, a greater number of individual photo optic lines are exposed to the photo detector, thereby decreasing the variance between the measure output and the true output of the laser.
    Type: Application
    Filed: December 18, 2002
    Publication date: June 24, 2004
    Inventors: Scott Caldwell, Robert McNair
  • Patent number: 6713713
    Abstract: A laser welding lens assembly for welding a first article to a second article at a weld zone includes a laser source outputting a laser beam. An optical fiber is operably coupled to the laser source to receive and transmit the laser beam. A lens is then positioned to receive the laser beam from the optical fiber. The lens includes a contoured face that is shaped to refract the laser beam to produce a generally uniform temperature profile across the weld zone.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: March 30, 2004
    Assignee: Branson Ultrasonics Corporation
    Inventors: Scott Caldwell, Craig Birrittella
  • Patent number: 6647057
    Abstract: The standard BPSK modulation and encoding mechanisms employed by the head end of a satellite-linked DATS communication system are replaced with digital video broadcast standard QPSK modulation and Viterbi/Reed-Solomon error correction encoding that are effective to provide significantly improved link performance. Each downlinked receiver site is retrofitted with a front end link adapter interface that is operative to demodulate the link-efficient, replacement modulation and coding to baseband, and then convert the demodulated and MPEG-based packetized baseband signals into an original TDM aggregate baseband signal which is then remodulated and encoded into the communication protocol used by the existing non-upgraded receiver, so that the in-place receiver may demodulate the signal.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: November 11, 2003
    Assignee: International Communications Products, Inc.
    Inventors: Henry Scott Caldwell, Charles Raymond Burr, Jr.
  • Patent number: 6624173
    Abstract: Patients susceptible to or suffering from disorders, such as central nervous system disorders, which are characterized by an alteration in normal neurotransmitter release, such as dopamine release (e.g., Parkinsonism, Parkinson's Disease, Tourette's Syndrome, attention deficient disorder, or schizophrenia) are treated by administering an endo or exo form of a 1-aza-2-(3-pyridyl)bicyclo[2.2.1]heptane, a 1-aza-2-(3-pyridyl)bicyclo [2.2.2]octane, a 1-aza-2-(3-pyridyl)bicyclo[3.2.2]nonane, a 1-aza-7-(3-pyridyl) bicyclo[2.2.1]heptane, a 1-aza-3-(3-pyridyl)bicyclo[3.2.2]nonane, or a 1-aza-7-(3-pyridyl)bicyclo[3.2.2]nonane.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: September 23, 2003
    Assignee: Targacept, Inc.
    Inventors: Peter Anthony Crooks, Gary Maurice Dull, William Scott Caldwell, Balwinder Singh Bhatti, Niranjan Madhukar Deo, Alain Ravard
  • Patent number: 6603011
    Abstract: Patients susceptible to or suffering from central nervous system disorders are treated by administering effective amounts of aryl substituted aliphatic amine compounds, aryl substituted olefinic amine compounds or aryl substituted acetylenic amine compounds. A representative compound is (E)-N-methyl-5-(3-pyridinyl)-4-penten-2-amine.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: August 5, 2003
    Assignee: Targacept, Inc.
    Inventors: William Scott Caldwell, Gary Maurice Dull, Grayland Page Dobson