Patents by Inventor Nicolaas De Jong

Nicolaas De Jong 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: 20090064712
    Abstract: The present invention relates to a method of liquefying a natural gas stream, wherein the natural gas stream (10) is provided at a pressure of 30-80 bar, expanded to a pressure <35 bar, supplied to a gas/liquid separator (31) and therein into a vaporous stream (40) and a liquid stream (30). The pressure of the vaporous stream is increased to a pressure of at least 70 bar and the pressurized vaporous stream (90) is liquefied to obtain a liquefied natural gas stream.
    Type: Application
    Filed: April 10, 2006
    Publication date: March 12, 2009
    Inventors: Cornelis Buijs, Willem Dam, Emilius Carolus Joanes Nicolaas De Jong
  • Publication number: 20090064713
    Abstract: The present invention relates to a method of liquefying a natural gas stream, wherein the natural gas stream (10) is provided at a pressure of 10-80 bar, supplied to a gas/liquid separator (31), and separated into a vaporous stream (40) and a liquid stream (30). The vaporous stream (40) is compressed to a pressure of at least 70, 84 bar heat exchanged against the vaporous stream (40), and liquefied to obtain a liquefied natural gas stream (100).
    Type: Application
    Filed: April 10, 2006
    Publication date: March 12, 2009
    Inventors: Cornelis Buijs, Willem Dam, Emilius Carolus Joanes Nicolaas De Jong
  • Patent number: 6575909
    Abstract: Described herein is an ultrasound probe for ultrasound imaging using contrast enhancing agents and including two interleaved arrays of transducer elements. Each array has a longitudinal dimension along which transducer elements are placed. One interleaved array includes transducer elements having a lower center frequency. Another interleaved array includes transducer elements having a higher center frequency. The transducer elements are provided on inter-fitting support members. A length of the transducer elements of one array is larger than a corresponding length of the transducer elements of the other array.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: June 10, 2003
    Assignee: Oldelft B.V.
    Inventors: Nicolaas De Jong, Robert Jan Smallenburg, Rudi Frans Mastenbroek
  • Publication number: 20010021809
    Abstract: An ultrasound probe is described for ultrasound imaging using contrast enhancing agents and comprising two interleaved arrays of transducer elemets, each of said arrays having a longitudinal dimension along which the transducer elements are placed side by side, a first one of the interleaved arrays comprising transducer elements having a lower center frequency and a second one of the interleaved arrays comprising transducer elements having a higher center frequency. The transducer elements of the first interleaved array are provided on a first, hollow, support member. The transducer elements of the second interleaved array are provided on a second support member. The second support member fits within the first support member. A length of the transducer elements of the first array in a plane of the array and in a direction substantially perpendicular to the longitudinal dimension is larger than a corresponding length of elements of the second array.
    Type: Application
    Filed: January 9, 2001
    Publication date: September 13, 2001
    Inventors: Nicolaas De Jong, Robert Jan Smallenburg, Rudi Frans Mastenbroek
  • Patent number: 6017310
    Abstract: A method of generating an ultrasound image comprising the steps of (i) introducing into the location to be imaged an ultrasound contrast agent obtained by spraying a solution or suspension of a wall forming material into a heated gas to form hollow microcapsules, (ii) exposing the microcapsules to ultrasound energy of an intensity of at least 100 kPa and (iii) creating an image based on the scattering of the ultrasound energy by the microcapsules.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: January 25, 2000
    Assignee: Andaris Limited
    Inventors: Richard Alan Johnson, Nicolaas de Jong, Paulus Antonius van der Wouw