Patents by Inventor Dean M. Smith

Dean M. Smith 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).

  • Water vapor distillation apparatus, method and systems
    Patent number: 11939237
    Abstract: A fluid vapor distillation system. The system includes a control system for controlling a fluid vapor distillation apparatus including a blow down controller for controlling a blow down valve, a source flow controller for controlling a source flow valve, and a blow down level sensor in communication with a blow down controller and a source flow controller, the blow down level sensor sends signals related to the blow down level to the blow down controller and the source flow controller indicative of the blow down level, wherein the source flow controller actuates the source flow valve based at least on the blow down level sensor signals, and wherein the blow down controller actuates the blow down valve based at least on the blow down level sensor signals, whereby the blow down level and the source flow level are maintained using the blow down level sensor signals as input.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: March 26, 2024
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Ryan K. LaRocque, Christopher C. Langenfeld, Andrew A. Schnellinger, Prashant Bhat, Otis L. Clapp, Stanley B. Smith, III, Stephen M. Ent
  • Optical transmission systems including optical amplifiers and methods
    Patent number: 7010229
    Abstract: Optical transmission systems of the present invention include at least one optical amplifier generally including an optical signal amplifying medium supplied with pump power in the form of optical energy in via an optical pump source. The pump source includes multiple optical sources, at least two of which provide optical energy in first and second wavelength ranges separated by a frequency difference. The amplifier includes a wavelength controller configured to adjust the wavelength range of at least one of the optical sources to vary the frequency difference in a manner sufficient to vary optical intensity noise produced when the optical energy from the multiple optical sources is combined.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: March 7, 2006
    Assignee: Corvis Corporation
    Inventors: David J. Copeland, John J. Veselka, Jr., Donald M. Cornwell, Jr., Thomas D. Stephens, Dean M. Smith, Mark A. Laliberte
  • Optical transmission systems including optical amplifiers and methods
    Publication number: 20040253001
    Abstract: Optical transmission systems of the present invention include at least one optical amplifier generally including an optical signal amplifying medium supplied with pump power in the form of optical energy in via an optical pump source. The pump source includes multiple optical sources, at least two of which provide optical energy in first and second wavelength ranges separated by a frequency difference. The amplifier includes a wavelength controller configured to adjust the wavelength range of at least one of the optical sources to vary the frequency difference in a manner sufficient to vary optical intensity noise produced when the optical energy from the multiple optical sources is combined.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 16, 2004
    Applicant: Corvis Corporation
    Inventors: David J. Copeland, John J. Veselka, Donald M. Cornwell, Thomas D. Stephens, Dean M. Smith, Mark A. Laliberte
  • Optical transmission systems including optical amplifiers and methods
    Patent number: 6782209
    Abstract: Optical transmission systems of the present invention include at least one optical amplifier generally including an optical signal amplifying medium supplied with pump power in the form of optical energy in via an optical pump source. The pump source includes multiple optical sources, at least two of which provide optical energy in first and second wavelength ranges separated by a frequency difference. The amplifier includes a wavelength controller configured to adjust the wavelength range of at least one of the optical sources to vary the frequency difference in a manner sufficient to vary optical intensity noise produced when the optical energy from the multiple optical sources is combined.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: August 24, 2004
    Assignee: Corvis Corporation
    Inventors: David J. Copeland, John J. Veselka, Jr., Donald M. Cornwell, Jr., Thomas D. Stephens, Dean M. Smith, Mark A. Laliberte
  • Optical transmission systems including optical amplifiers and methods
    Publication number: 20010028490
    Abstract: Optical transmission systems of the present invention include at least one optical amplifier generally including an optical signal amplifying medium supplied with pump power in the form of optical energy in via an optical pump source. The pump source includes multiple optical sources, at least two of which provide optical energy in first and second wavelength ranges separated by a frequency difference. The amplifier includes a wavelength controller configured to adjust the wavelength range of at least one of the optical sources to vary the frequency difference in a manner sufficient to vary optical intensity noise produced when the optical energy from the multiple optical sources is combined.
    Type: Application
    Filed: March 2, 2001
    Publication date: October 11, 2001
    Inventors: David J. Copeland, John J. Veselka, Donald M. Cornwell, Thomas D. Stephens, Dean M. Smith, Mark A. Laliberte