Patents by Inventor Peter Christiaans

Peter Christiaans 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: 8105400
    Abstract: A process for treating biomass comprises providing a material that contains an amount of residual moisture. The material is heated to a torrefying temperature in a low-oxygen atmosphere in a torrefaction reactor to convert it into a torrefied material. The material with the contained residual moisture is essentially fully dried in a drying chamber by evaporation of residual moisture. The torrefaction reactor comprises a torrefying chamber, in which the torrefaction of this dried material is essentially carried out. The material is conveyed through the torrefaction reactor. The drying of the material in the drying chamber is carried out by introducing into it a hot drying gas that flows therethrough cocurrently with the material. The torrefaction of the material in the torrefying chamber of the torrefaction reactor is carried out by introducing into it a hot torrefying gas that flows through the torrefying chamber countercurrently with the material.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: January 31, 2012
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventor: Peter Christiaan Albert Bergman
  • Publication number: 20120012747
    Abstract: A scanning confocal transmission electron microscope includes a descan deflector and a corrector below the sample. The microscope uses a detector that is preferably significantly larger than the resolution of the microscope and is positioned in the real image plane, which provides improved contrast, particularly for light elements.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 19, 2012
    Applicant: FEI COMPANY
    Inventors: Sorin Lazar, Bert Henning Freitag, Peter Christiaan Tiemeijer
  • Publication number: 20110315876
    Abstract: The invention relates to a blocking member to be placed in the diffraction plane of a TEM. It resembles the knife edge used for single sideband imaging, but blocks only electrons deflected over a small angle. As a result the Contrast Transfer Function of the TEM according to this invention will equal that of a single sideband microscope at low frequencies and that of a normal microscope for high frequencies. Preferable the highest frequency blocked by the blocking member is such that a microscope without the blocking member would show a CTF of 0.5.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 29, 2011
    Applicant: FEI Company
    Inventors: Bart Buijsse, Peter Christiaan Tiemeijer
  • Patent number: 8071954
    Abstract: The invention relates to a hybrid phase plate for use in a TEM. The phase plate according to the invention resembles a Boersch phase plate in which a Zernike phase plate is mounted. As a result the phase plate according to the invention resembles a Boersch phase plate for electrons scattered to such an extent that they pass outside the central structure (15) and resembles a Zernike phase plate for scattered electrons passing through the bore of the central structure. Comparing the phase plate of the invention with a Zernike phase plate is has the advantage that for electrons that are scattered over a large angle, no electrons are absorbed or scattered by a foil, resulting in a better high resolution performance of the TEM. Comparing the phase plate of the invention with a Boersch phase plate the demands for miniaturization of the central structure are less severe.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: December 6, 2011
    Assignee: FEI Company
    Inventors: Raymond Wagner, Hendrik Nicolaas Slingerland, Frank Jeroen Pieter Schuurmans, Peter Christiaan Tiemeijer
  • Publication number: 20110285181
    Abstract: A roof assembly for a vehicle having an opening in the fixed roof comprises a stationary guide rail on at least one side of the roof opening and a slidable slide with an operating mechanism. At least one closure element is supported by the operating mechanism and is adjustable between a closed position, in which it closes the roof opening at least partially, and an open position, in which it releases the roof opening at least partially. Each operating mechanism comprises a laterally extending curve rib and a guide member engaging around the curve rib and being attached to a carrier. The curve rib and carrier of the guide member are each attached to either one of the closure element and the slide and are adapted to slide with respect to each other. The guide member is rotatably attached to the carrier so as to compensate for a variation in inclination between the carrier and curve rib at the position of the guide member.
    Type: Application
    Filed: February 3, 2009
    Publication date: November 24, 2011
    Applicant: Inalfa Roof Systems Group B. V.
    Inventor: Peter Christiaan Leonardus Johannes Manders
  • Publication number: 20110278451
    Abstract: The invention provides multiple detectors that detect electrons that have passed through a sample. The detectors preferably detect electrons after the electrons have been passed through a prism that separates electrons according to their energies. Electrons in different energy ranges are then detected by different detectors, with preferably at least one of the detectors measuring the energy lost by the electrons as they pass through the sample. One embodiment of the invention provides EELS on core-loss electrons while simultaneously providing a bright-field STEM signal from low-loss electrons.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 17, 2011
    Applicant: FEI Company
    Inventors: Peter Christiaan Tiemeijer, Bert Henning Freitag, Sorin Lazar
  • Publication number: 20110254323
    Abstract: An open roof construction for a vehicle comprises a stationary roof part, a roof opening provided therein, and a roof assembly mounted to the stationary roof part, having a panel which is movable between closed and open positions for closing and opening, respectively, said roof opening. A moving mechanism is provided for connecting the movable panel to the stationary roof and moving it with respect thereto, wherein the moving mechanism at least comprises two longitudinal curved parts attached to the movable panel, two stationary guides extending along opposite longitudinal edges of the roof opening and two linking mechanisms for movably linking the stationary guides with the respective curved parts.
    Type: Application
    Filed: April 18, 2011
    Publication date: October 20, 2011
    Applicant: Inalfa Roof Systems Group B.V.
    Inventors: Marcel Johan Christiaan Nellen, Peter Christiaan Leonardus Johannes Manders, Joseph Petrus Johannus Sanders, Robert Rikkert, Ronny Doornink
  • Publication number: 20110146921
    Abstract: A sunshade assembly includes a sunscreen having opposed longitudinal edges which are provided with guide strips which are substantially rigid in transverse direction. Opposed longitudinal guiderails each include a guide channel section defining a guide channel in which the respective guide strip is accommodated when the sunscreen is moved between open and closed positions. The guide channel of each guide rail is bound on the side facing the opposite guiderail by a guide flange supporting the lower side of the sunscreen. A part of the guide channel supports the guide strip on its side remote from the sunscreen. A biasing member acts between at least one of the guide strips and the corresponding guide channel section to bias the guide strip at least on its edge adjacent the sunscreen in a direction away from the guide flange.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 23, 2011
    Applicant: Inalfa Roof Systems Group B.V.
    Inventors: Marcel Johan Christiaan Nellen, Stephan Christiaan Vervoort, Ruud Geurts, Peter Christiaan Leonardus Manders
  • Patent number: 7915584
    Abstract: The invention relates to a TEM with a corrector (330) to improve the image quality and a phase plate (340) to improve contrast. The improved TEM comprises a correction system completely placed between the objective lens and the phase plate, and uses the lenses of the corrector to form a magnified image of the diffraction plane on the phase plate.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: March 29, 2011
    Assignee: FEI Company
    Inventors: Peter Christiaan Tiemeijer, Alan Frank De Jong
  • Publication number: 20100314913
    Abstract: An open roof construction for a vehicle is provided, comprises a roof opening defined in a stationary roof part of the vehicle. A roof assembly having a movable panel for opening and closing said roof opening, of which panel the rear end, as viewed in the longitudinal direction of the car, can be moved upward and downward by a moving mechanism comprising at least a tilting lever having a first end slideably and rotatably engaging the stationary roof part and an opposite second end rotatably engaging the panel, wherein the first end of the tilting lever is drivable by drive means for its sliding motion relative to the stationary roof part and wherein the tilting lever for realising its rotational movement comprises a follower positioned between its first and second ends cooperating with a guide curve.
    Type: Application
    Filed: June 14, 2010
    Publication date: December 16, 2010
    Applicant: Inalfa Roof Systems Group B.V.
    Inventors: Eduardus Christianus Henricus Van Boxtel, Peter Christiaan Leonarus Johannes Manders, Marcel Johan Christiaan Nellen, Sander De Bie
  • Patent number: 7803845
    Abstract: Method and device for cleaning synthesis gas obtained during gasification of biomass are disclosed. The synthesis gas is passed through a saturation device and an absorption device, both of which are fed with oil. In this way, the synthesis gas is scrubbed with oil and tar is substantially removed therefrom. The tar-containing oil which is released in this process is subjected to a cleaning step, as a result of which oil with a high percentage of tar and oil with a relatively low percentage of tar are formed. The first oil can be retuned to the gasification, and the remaining oil can be reused.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: September 28, 2010
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventors: Harold Boerrigter, Peter Christiaan Albert Bergman
  • Patent number: 7753438
    Abstract: An open roof construction for a vehicle having a roof opening defined in a stationary roof part includes a roof assembly having a movable panel for opening and closing said roof opening, with a slide which is movable along a stationary slide guide and which is provided with panel engagement device cooperating with a panel curve of the movable panel, wherein a movement of the slide is capable of generating a tilting and/or sliding movement of the panel. The roof assembly further includes a locking lever which by means of a hinge point is connected to the panel and which is provided with slide engagement device cooperating with a slide curve of the slide.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: July 13, 2010
    Assignee: Inalfa Roof Systems Group B.V.
    Inventors: Peter Christiaan Leonardus Johannes Manders, Eduardus Christianus Henricus van Boxtel, Marcel Johan Christiaan Nellen, Robertus Wilhelmus Henricus Luijpers
  • Publication number: 20100072366
    Abstract: The invention relates to a method for correcting distortions introduced by the projection system (106) of a TEM. As known to the person skilled in the art distortions may limit the resolution of a TEM, especially when making a 3D reconstruction of a feature using tomography. Also when using strain analysis in a TEM the distortions may limit the detection of strain. To this end the invention discloses a detector equipped with multipoles (152), the multipoles warping the image of the TEM in such a way that distortions introduced by the projection system are counteracted. The detector may further include a CCD or a fluorescent screen (151) for detecting the electrons.
    Type: Application
    Filed: September 22, 2009
    Publication date: March 25, 2010
    Applicant: FEI COMPANY
    Inventors: Peter Christiaan Tiemeijer, Uwe Luecken, Alan Frank De Jong, Hendrik Nicolaas Slingerland
  • Publication number: 20100073376
    Abstract: An electronic wavefront device (10) comprises a controller (32) configured to provide a wavefront rendering signal and at least one wavefront rendering device (12, 14) coupled to said controller. The at least one wavefront rendering device is configured to produce a holographic wavefront on a respective plane of the at least one wavefront rendering device in response to the wavefront rendering signal. The holographic wavefront on the respective plane is configured to reproduce an incoming wavefront that would otherwise be incident on the respective plane if an object or scene being reproduced from the incoming wavefront were actually in front of the at least one wavefront rendering element.
    Type: Application
    Filed: November 16, 2007
    Publication date: March 25, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Peter Christiaan Schmale
  • Publication number: 20090302217
    Abstract: The invention relates to a hybrid phase plate for use in a TEM. The phase plate according to the invention resembles a Boersch phase plate in which a Zernike phase plate is mounted. As a result the phase plate according to the invention resembles a Boersch phase plate for electrons scattered to such an extent that they pass outside the central structure (15) and resembles a Zernike phase plate for scattered electrons passing through the bore of the central structure. Comparing the phase plate of the invention with a Zernike phase plate is has the advantage that for electrons that are scattered over a large angle, no electrons are absorbed or scattered by a foil, resulting in a better high resolution performance of the TEM. Comparing the phase plate of the invention with a Boersch phase plate the demands for miniaturization of the central structure are less severe.
    Type: Application
    Filed: June 4, 2009
    Publication date: December 10, 2009
    Applicant: FEI COMPANY
    Inventors: Raymond Wagner, Hendrik Nicolaas Slingerland, Frank Jeroen Pieter Schuurmans, Peter Christiaan Tiemeijer
  • Publication number: 20090200464
    Abstract: The invention relates to a TEM with a corrector (330) to improve the image quality and a phase plate (340) to improve contrast. The improved TEM comprises a correction system completely placed between the objective lens and the phase plate, and uses the lenses of the corrector to form a magnified image of the diffraction plane on the phase plate.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 13, 2009
    Applicant: FEI COMPANY
    Inventors: Peter Christiaan Tiemeijer, Alan Frank de Jong
  • Publication number: 20090114021
    Abstract: The invention relates to a method and system for ultrasonic time of flight diffraction inspection of a plastics wall, such as a pipe wall. The method comprises providing an ultrasound transmitter and transmitting an ultrasound signal having a nominal frequency into the wall, providing an ultrasound receiver and receiving the ultrasound signal transmitted through the wall. The ultrasound signal provided by the transmitter has a bandwidth of more than 80%, preferably more than 100% of the nominal frequency of the ultrasound signal provided by the transmitter.
    Type: Application
    Filed: July 16, 2008
    Publication date: May 7, 2009
    Inventor: Peter Christiaan den Boer
  • Publication number: 20090114755
    Abstract: A tensioning device for tensioning a flexible elongate member, such as a cord, comprises a first winding member which can rotate around an axle for, directly or indirectly, winding and unwinding the elongate member at a first end thereof, and a second winding member which can rotate around said axle for, directly or indirectly, winding and unwinding the elongate member at the second end thereof. The first and second winding members are interconnected by a tensioning member striving to cause a relative rotation between the first and second winding members for creating a prestress or tension in the elongate member. A restriction device is provided for limiting the maximum possible relative rotation between the first and second winding members.
    Type: Application
    Filed: November 4, 2008
    Publication date: May 7, 2009
    Applicant: Inalfa Roof Systems Group B.V.
    Inventor: Peter Christiaan Leonardus Johanne Manders
  • Publication number: 20090084029
    Abstract: A process for treating biomass comprises providing a material that contains an amount of residual moisture. The material is heated to a torrefying temperature in a low-oxygen atmosphere in a torrefaction reactor to convert it into a torrefied material. The material with the contained residual moisture is essentially fully dried in a drying chamber by evaporation of residual moisture. The torrefaction reactor comprises a torrefying chamber, in which the torrefaction of this dried material is essentially carried out. The material is conveyed through the torrefaction reactor. The drying of the material in the drying chamber is carried out by introducing into it a hot drying gas that flows therethrough cocurrently with the material. The torrefaction of the material in the torrefying chamber of the torrefaction reactor is carried out by introducing into it a hot torrefying gas that flows through the torrefying chamber countercurrently with the material.
    Type: Application
    Filed: January 8, 2007
    Publication date: April 2, 2009
    Applicant: STICHTING ENERGIEONDERZOEK CENTRUM NEDERLAND
    Inventor: Peter Christiaan Albert Bergman
  • Publication number: 20090021056
    Abstract: An open roof construction for a vehicle having a roof opening defined in a stationary roof part includes a roof assembly having a movable panel for opening and closing said roof opening, with a slide which is movable along a stationary slide guide and which is provided with panel engagement device cooperating with a panel curve of the movable panel, wherein a movement of the slide is capable of generating a tilting and/or sliding movement of the panel. The roof assembly further includes a locking lever which by means of a hinge point is connected to the panel and which is provided with slide engagement device cooperating with a slide curve of the slide.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 22, 2009
    Applicant: Inalfa Roof Systems Group B.V.
    Inventors: Peter Christiaan Leonardus Johannes Manders, Eduardus Christianus van Boxtel, Marcel Johan Christiaan Nellen, Robertus Wilhelmus Henricus Luijpers