Patents by Inventor Robert M. Carangelo

Robert M. Carangelo 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: 10228324
    Abstract: Presented herein are systems and methods for quantifying trace and/or ultra-trace levels of a species—for example, H2S or H2O—in a natural gas line. The systems and methods employ a tunable laser, such as a tunable diode laser, vertical-cavity surface-emitting laser (VCSEL), external cavity diode laser or a vertical external-cavity surface-emitting laser (VECSEL) or a tunable quantum cascade laser (QCL). The laser produces an output beam over a set of one or more relatively narrow, high resolution wavelength bands at a scan rate from about 0.1 Hz to about 1000 Hz. A natural gas sample comprising a trace level of a species of interest passes through a flow cell into which the output beam from the laser is guided. An optical detector receives light from the flow cell, producing a signal indicative of the absorption attenuation from which the concentration of the trace species is determined.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: March 12, 2019
    Assignee: MKS Instruments, Inc.
    Inventors: Peter Zemek, Robert M. Carangelo, Hongke Ye, Andrew Wright
  • Publication number: 20180024051
    Abstract: Presented herein are systems and methods for quantifying trace and/or ultra-trace levels of a species—for example, H2S or H2O—in a natural gas line. The systems and methods employ a tunable laser, such as a tunable diode laser, vertical-cavity surface-emitting laser (VCSEL), external cavity diode laser or a vertical external-cavity surface-emitting laser (VECSEL) or a tunable quantum cascade laser (QCL). The laser produces an output beam over a set of one or more relatively narrow, high resolution wavelength bands at a scan rate from about 0.1 Hz to about 1000 Hz. A natural gas sample comprising a trace level of a species of interest passes through a flow cell into which the output beam from the laser is guided. An optical detector receives light from the flow cell, producing a signal indicative of the absorption attenuation from which the concentration of the trace species is determined.
    Type: Application
    Filed: July 25, 2017
    Publication date: January 25, 2018
    Inventors: Peter Zemek, Robert M. Carangelo, Hongke Ye, Andrew Wright
  • Patent number: 9310294
    Abstract: Methods and systems are provided for monitoring at least one gas in a sample gas. An exemplary system includes a source used for generating a beam of radiation, at least one retro-reflector configured to receive the beam of radiation from the source in an incident direction and reflect the beam of radiation toward the source in alignment with the incident direction, and a motor configured to move the at least one retro-reflector with respect to the source in a direction collinear with the incident direction. The system also includes a sample cell storing a sample gas comprising at least one gas. The sample cell is configured to allow at least a portion of an extracted beam of radiation from a cavity, defined by the source and the at least one retro-reflector, to propagate therethrough.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: April 12, 2016
    Assignee: MKS Instruments, Inc.
    Inventor: Robert M. Carangelo
  • Patent number: 9115975
    Abstract: An interferometry system for monitoring changes in the position of an object, the system includes a spectrally broadband light source, a sensor module having an interferometer that direct portions of the light received from the source along separate paths. The system includes an intensity monitor having a detector configured to measure the intensity of additional light derived from the source and to produce a monitor output signal. The system includes an electronic processing module to process a sensor output signal based on the monitor output signal to account for intensity fluctuations in light output by the source, and determine information about the changes in the position of the object. The intensity monitor is configured to characterize the intensity fluctuations as a function of wavelength or intensity fluctuations that are spectrally correlated.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: August 25, 2015
    Assignee: Zygo Corporation
    Inventors: Jan Liesener, Robert M. Carangelo, Leslie L. Deck, Michael Lowell Holmes, Alexander D. Wesley
  • Publication number: 20150160126
    Abstract: Methods and systems are provided for monitoring at least one gas in a sample gas. An exemplary system includes a source used for generating a beam of radiation, at least one retro-reflector configured to receive the beam of radiation from the source in an incident direction and reflect the beam of radiation toward the source in alignment with the incident direction, and a motor configured to move the at least one retro-reflector with respect to the source in a direction collinear with the incident direction. The system also includes a sample cell storing a sample gas comprising at least one gas. The sample cell is configured to allow at least a portion of an extracted beam of radiation from a cavity, defined by the source and the at least one retro-reflector, to propagate therethrough.
    Type: Application
    Filed: May 12, 2014
    Publication date: June 11, 2015
    Applicant: MKS Instruments, Inc.
    Inventor: Robert M. Carangelo
  • Publication number: 20140098375
    Abstract: An interferometry system for monitoring changes in the position of an object, the system includes a spectrally broadband light source, a sensor module having an interferometer that direct portions of the light received from the source along separate paths. The system includes an intensity monitor having a detector configured to measure the intensity of additional light derived from the source and to produce a monitor output signal. The system includes an electronic processing module to process a sensor output signal based on the monitor output signal to account for intensity fluctuations in light output by the source, and determine information about the changes in the position of the object. The intensity monitor is configured to characterize the intensity fluctuations as a function of wavelength or intensity fluctuations that are spectrally correlated.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 10, 2014
    Inventors: Jan Liesener, Robert M. Carangelo, Leslie L. Deck, Michael Lowell Holmes, Alexander D. Wesley
  • Patent number: 7982513
    Abstract: Eight or more transition points are generated during a given period, and are used in tracking movement of an interferometer reflector. Duty cycles of generated square waves are used to establish precise intervals between the transition points, and precise wave-phase relationships.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: July 19, 2011
    Assignee: MKS Instruments, Inc.
    Inventors: Robert M. Carangelo, Paul C. Jette, Jack Kisslinger
  • Publication number: 20100176858
    Abstract: Eight or more transition points are generated during a given period, and are used in tracking movement of an interferometer reflector. Duty cycles of generated square waves are used to establish precise intervals between the transition points, and precise wave-phase relationships.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 15, 2010
    Applicant: MKS Instruments, Inc.
    Inventors: Robert M. Carangelo, Paul C. Jette, Jack Kisslinger
  • Patent number: 7679413
    Abstract: Eight or more transition points are generated during a given period, and are used in tracking movement of an interferometer reflector. Duty cycles of generated square waves are used to establish precise intervals between the transition points, and precise wave-phase relationships.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: March 16, 2010
    Assignee: MKS Instruments, Inc.
    Inventors: Robert M. Carangelo, Paul C. Jette, Jack Kisslinger
  • Publication number: 20090039934
    Abstract: Eight or more transition points are generated during a given period, and are used in tracking movement of an interferometer reflector. Duty cycles of generated square waves are used to establish precise intervals between the transition points, and precise wave-phase relationships.
    Type: Application
    Filed: October 9, 2008
    Publication date: February 12, 2009
    Applicant: MKS Instruments, Inc.
    Inventors: Robert M. Carangelo, Paul C. Jette, Jack Kisslinger
  • Patent number: 7436234
    Abstract: Eight or more transition points are generated during a given period, and are used in tracking movement of an interferometer reflector. Duty cycles of generated square waves are used to establish precise intervals between the transition points, and precise wave-phase relationships.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: October 14, 2008
    Assignee: MKS Instruments, Inc.
    Inventors: Robert M. Carangelo, Paul C. Jette, Jack Kisslinger
  • Publication number: 20080192582
    Abstract: In an embodiment, the indication of the seconds is in an inner portion of the face of the clock, the indication of the hours is on an outer portion of the face of the clock, and the indication of the minutes is between the hours and the seconds. In an embodiment, the indication of the seconds is performed by placing a leading time indicator of a group of time indicators in a current time state, followed by a tail of time indicators that may have a constant or have a range of mixed states that may range in appearance that is closest to the current time state to a an appearance that is closest to a non-current time state in an order such that the closer in appearance to the current time state the time indicator is, the closer the time indicator is to the current time state.
    Type: Application
    Filed: February 14, 2008
    Publication date: August 14, 2008
    Inventors: Frank H. Spoto, Robert M. Carangelo, Wayne M. Antonson
  • Patent number: 5841546
    Abstract: A non-contact spectroscopy system includes scanning head structure with transmitting optics for focusing radiation onto the surface of material to be analyzed, and receiving optics for collecting radiation reflected from the surface of the material and directing the reflected radiation onto optic fiber structure for transmission to spectroscopic analyzer structure.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: November 24, 1998
    Assignee: Foster-Miller, Inc.
    Inventors: Robert M. Carangelo, Mark A. Druy, William A. Stevenson, Paul J. Glatkowski
  • Patent number: 5486917
    Abstract: A multiplicity of one-piece flexure plates are assembled in pairs to provide a support system on which a retroreflector may be mounted for reciprocal motion. Combined with balance bodies, the flexure plates provide a support system having portions that are dynamically and statically balanced with one another, irrespective of orientation, so as to thereby immunize the unit against extraneous forces. The motion transfer assembly is especially adapted for use to support a moving retroreflector in a two-arm interferometer that may further include a beamsplitter assembly constructed from a one-piece, integrally formed body, the body having convergent, optically flat planar surfaces of specular reflectance, and means for adjustably mounting a beamsplitter therein. The spectrometer is of modular construction, and employs an integrated clocking sub-assembly as well as a light-weight voice-coil motor.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: January 23, 1996
    Assignee: On-Line Technologies Inc
    Inventors: Robert M. Carangelo, Mark D. Dettori, Lawrence J. Grigely, Terence C. Murray, Peter R. Solomon, C. Peter Van Dine, David D. Wright
  • Patent number: 5473429
    Abstract: The method and apparatus effect reversal of a body moving at constant velocity, such as an interferometer reflector, by applying a retrograde electromagnetic force that varies in direct proportion to the distance the body has travelled past the point at which turn around is commenced. Circuitry employed is switched between proportional and integral control configurations, the latter permitting sine-wave oscillation to occur in a servo control loop during reversal.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: December 5, 1995
    Assignee: On-Line Technologies, Inc.
    Inventors: Robert M. Carangelo, Paul C. Jette
  • Patent number: 5440143
    Abstract: A folded-path gas cell employs an elliptical concave mirror in confronting relationship to two substantially spherical concave mirrors. At least one of the spherical mirrors, and usually both, are formed with an added cylindrical component to increase orthogonal focii coincidence and thereby to increase the radiation energy throughput characteristic of the cell.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: August 8, 1995
    Assignee: On-Line Technologies, Inc.
    Inventors: Robert M. Carangelo, David D. Wright
  • Patent number: 5432336
    Abstract: Corrective factors are applied so as to remove anomalous features from the signal generated by a photoconductive detector, and to thereby render the output signal highly linear with respect to the energy of incident, time-varying radiation. The corrective factors may be applied through the use of either digital electronic data processing means or analog circuitry, or through a combination of those effects.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: July 11, 1995
    Assignees: On-Line Technologies, Inc., Graseby Electro-Optics, Inc
    Inventors: Robert M. Carangelo, Andrew J. Duran, Irwin Kudman
  • Patent number: 5403433
    Abstract: The method and apparatus of the invention permit in situ determinations to be made of the temperature and optical constants of a substrate surface that is being treated, by measurements of radiance, reflectance and transmittance. These determinations in turn provide, at any given instant during processing, compositional and other information, thereby affording highly effective feedback control of the processing conditions. The apparatus comprises an integrated, small and relatively inexpensive instrument for process monitoring.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: April 4, 1995
    Assignee: On-Line Technologies, Inc.
    Inventors: Philip W. Morrison, Peter R. Solomon, Robert M. Carangelo, David G. Hamblen
  • Patent number: 5354989
    Abstract: An array of superconducting bolometers, assembled with a superposed interference layer of graduated thickness, provides a microelectronic detector assembly that discriminates radiation impinging thereon, as a function of wavelength, and that can be used for transform spectroscopy, color-imaging, and the like. The interference coating will preferably be of step-like form, with each plateau of the structure being of the same spatial extent as the bolometer with which it is associated.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: October 11, 1994
    Assignee: Advanced Fuel Research Inc.
    Inventors: David B. Fenner, Robert M. Carangelo
  • Patent number: RE35872
    Abstract: An array of superconducting bolometers, assembled with a superposed interference layer of graduated thickness, provides a microelectronic detector assembly that discriminates radiation impinging thereon, as a function of wavelength, and that can be used for transform spectroscopy, color-imaging, and the like. The interference coating will preferably be of step-like form, with each plateau of the structure being of the same spatial extent as the bolometer with which it is associated.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: August 18, 1998
    Assignee: Advanced Fuel Research, Inc.
    Inventors: David B. Fenner, Robert M. Carangelo