Patents by Inventor Andries J. Du Plessis

Andries J. Du Plessis 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).

  • Manufacturing and installation of insulated pipes or elements thereof
    Patent number: 10132441
    Abstract: Insulated pipe systems or assemblies include a particulate, composite or monolithic insulating aerogel material. Techniques for installing or manufacturing such systems or assemblies are described, as are components useful in the installation or manufacture processes.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: November 20, 2018
    Assignee: Cabot Corporation
    Inventors: Jason J. Koravos, Andries J. Du Plessis, Matthew B. Greenfield, Aaron H. Johnson, Thomas Michael Miller
  • Manufacturing and Installation of Insulated Pipes or Elements Thereof
    Publication number: 20160319983
    Abstract: Insulated pipe systems or assemblies include a particulate, composite or monolithic insulating aerogel material. Techniques for installing or manufacturing such systems or assemblies are described, as are components useful in the installation or manufacture processes.
    Type: Application
    Filed: May 4, 2016
    Publication date: November 3, 2016
    Inventors: Jason J. Koravos, Andries J. Du Plessis, Matthew B. Greenfield, Aaron H. Johnson, Thomas Michael Miller
  • Filling fenestration units
    Patent number: 8628834
    Abstract: A method for fabricating an insulated system such as, for instance, an insulated window unit, includes introducing an insulating material between adjacent walls and stabilizing the system. Particulate insulators preferably are introduced in the system by filling an expanded internal volume. Stabilization of the system can be carried out by reducing the pressure within the internal volume. A stabilized insulated system is fabricated by introducing an insulating material between adjacent walls and stabilizing the system. Also disclosed are processes and equipment for filling insulated systems, such as fenestration units, and insulated systems comprising mixed insulating materials.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: January 14, 2014
    Assignee: Cabot Corporation
    Inventors: Andries J. Du Plessis, Georg Rudolf Gertner, James R. Satterwhite, Daniel P. Olsen
  • Manufacturing and Installation of Insulated Pipes or Elements Thereof
    Publication number: 20110197987
    Abstract: Insulated pipe systems or assemblies include a particulate, composite or monolithic insulating aerogel material. Techniques for installing or manufacturing such systems or assemblies are described, as are components useful in the installation or manufacture processes.
    Type: Application
    Filed: April 30, 2009
    Publication date: August 18, 2011
    Applicant: CABOT CORPORATION
    Inventors: Jason J. Koravos, Andries J. Du Plessis, Matthew B. Greenfield, Aaron H. Johnson, Thomas Michael Miller
  • Filling Fenestration Units
    Publication number: 20080302059
    Abstract: A method for fabricating an insulated system such as, for instance, an insulated window unit, includes introducing an insulating material between adjacent walls and stabilizing the system. Particulate insulators preferably are introduced in the system by filling an expanded internal volume. Stabilization of the system can be carried out by reducing the pressure within the internal volume. A stabilized insulated system is fabricated by introducing an insulating material between adjacent walls and stabilizing the system. Also disclosed are processes and equipment for filling insulated systems, such as fenestration units, and insulated systems comprising mixed insulating materials.
    Type: Application
    Filed: May 19, 2008
    Publication date: December 11, 2008
    Applicant: CABOT CORPORATION
    Inventors: Andries J. Du Plessis, Georg Rudolf Gertner, James R. Satterwhite, Daniel P. Olsen
  • Position control actuator system
    Patent number: 7246489
    Abstract: A position control actuator system includes a control element and first and second actuators. The first and second actuators are each comprised of magneto-active twinned material. The first actuator is configured to extend and drive the control element in a first direction when the first actuator is subjected to a magnetic field. The second actuator is configured to extend and drive the control element in a second direction when the second actuator is subjected to a magnetic field. A magnetic field source subsystem is configured to extend the first actuator to drive the control element in the first direction, and extend the second actuator to drive the control element in the second direction.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: July 24, 2007
    Assignee: Mide Technology Corporation
    Inventors: Andries J. Du Plessis, Alexander W. Jessiman, Gert J. Muller
  • Position control actuator system
    Publication number: 20040206922
    Abstract: A position control actuator system includes a control element and first and second actuators. The first and second actuators are each comprised of magneto-active twinned material. The first actuator is configured to extend and drive the control element in a first direction when the first actuator is subjected to a magnetic field. The second actuator is configured to extend and drive the control element in a second direction when the second actuator is subjected to a magnetic field. A magnetic field source subsystem is configured to extend the first actuator to drive the control element in the first direction, and extend the second actuator to drive the control element in the second direction.
    Type: Application
    Filed: February 26, 2004
    Publication date: October 21, 2004
    Inventors: Andries J. Du Plessis, Alexander W. Jessiman, Gert J. Muller