Patents by Inventor Zvonimir Opic

Zvonimir Opic 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: 9625055
    Abstract: The invention relates to a throttling valve comprising a fluid inlet (29) and a fluid outlet (27). The throttling valve is arranged to control a flux of a fluid stream flowing via a flow path from the fluid inlet (29) to the fluid outlet (27). The flow path comprises a plurality of openings (330) which, in use, create a pressure reduction over the throttling valve and thereby a cooling effect of the fluid. The openings (330) widen in a downstream direction.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: April 18, 2017
    Assignee: TWISTER B.V.
    Inventors: Max Robert Anthony Ter Haar, Zvonimir Opic, Marco Betting, Cornelis Antonie Tjeenk Willink
  • Publication number: 20130337166
    Abstract: The present invention relates to a method for reducing gas hydrate adhesion to the interior surface of a conduit and associated equipment transporting or processing a fluid stream in oil and gas exploration and production, petroleum refining and/or petrochemistry, by providing the conduit interior surface with a coating layer exhibiting a static contact angle of the sessile water drop on the coating layer in air higher than 75° at ambient air conditions, as measured according to ASTM D7334-08, wherein said coating layer comprises diamond like carbon (DLC) comprising fractions of one or more components selected from the group consisting of silicon (Si), oxygen (O) and fluor (F).
    Type: Application
    Filed: August 2, 2013
    Publication date: December 19, 2013
    Applicant: Twister B.V.
    Inventors: Marco Betting, Cornelis Antonie Tjeenk Willink, Zvonimir Opic, Swie Siang Sebastiaan Kwee
  • Patent number: 8524318
    Abstract: The present invention relates to a method for reducing gas hydrate adhesion to the interior surface of a conduit and associated equipment transporting or processing a fluid stream in oil and gas exploration and production, petroleum refining and/or petrochemistry, by providing the conduit interior surface with a coating layer exhibiting a static contact angle of the sessile water drop on the coating layer in air higher than 75° at ambient air conditions, as measured according to ASTM D7334-08, wherein said coating layer comprises diamond like carbon (DLC) comprising fractions of one or more components selected from the group consisting of silicon (Si), oxygen (O) and fluor (F).
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: September 3, 2013
    Assignee: Twister B.V.
    Inventors: Marco Betting, Cornelis Antonie Tjeenk Willink, Zvonimir Opic, Swie Siang Sebastiaan Kwee
  • Publication number: 20120285546
    Abstract: The invention relates to a throttling valve comprising a fluid inlet (29) and a fluid outlet (27). The throttling valve is arranged to control a flux of a fluid stream flowing via a flow path from the fluid inlet (29) to the fluid outlet (27). The flow path comprises a plurality of openings (330) which, in use, create a pressure reduction over the throttling valve and thereby a cooling effect of the fluid. The openings (330) widen in a downstream direction.
    Type: Application
    Filed: July 30, 2009
    Publication date: November 15, 2012
    Applicant: TWISTER B.V.
    Inventors: Max Robert Anthony Ter Haar, Zvonimir Opic, Marco Betting, Swie Siang Sebastiaan Kwee, Cornelis Antonie Tjeenk Willink
  • Patent number: 8226743
    Abstract: The invention relates to fluid separator comprising:—a throat portion (4) which is arranged between a converging fluid inlet section and a diverging fluid outlet section, the diverging fluid outlet section comprising an inner primary outlet (7) for condensables depleted fluid components and an outer secondary outlet for condensables enriched fluid components (6); and—a central body (10) provided upstream of the throat portion (4) in the fluid inlet section, the central body (10) being arranged substantially coaxial to a central axis I of the fluid separator. The fluid separator is arranged to facilitate a main flow through the converging fluid inlet section, the throat portion towards the diverging fluid outlet section. The central body (10) comprises an outlet (13), directed towards the tubular throat portion (4) and is arranged to add a central flow towards the throat portion (4).
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: July 24, 2012
    Assignee: Twister, B.V.
    Inventors: Marco Betting, Cornelis Antonie Tjeenk Willink, Bart Prast, Zvonimir Opic
  • Publication number: 20110123736
    Abstract: The invention pertains to a method for reducing gas hydrate adhesion to the interior surface of a conduit and associated equipment transporting or processing a fluid stream in oil and gas exploration and production, petroleum refining and/or petrochemistry, by providing the conduit interior surface with a coating layer exhibiting a static contact angle of the sessile water drop on the coating layer in air higher than 75° at ambient air conditions, as measured according to ASTM D7334-08, wherein said coating layer comprises diamond like carbon (DLC) comprising fractions of one or more components selected from the group consisting of silicon (Si), oxygen (O) and fluor (F).
    Type: Application
    Filed: May 27, 2009
    Publication date: May 26, 2011
    Applicant: TWISTER B.V.
    Inventors: Marco Betting, Cornelis Antonie Tjeenk Willink, Zvonimir Opic, Swie Siang Sebastiaan Kwee
  • Publication number: 20100147021
    Abstract: The invention relates to fluid separator comprising: —a throat portion (4) which is arranged between a converging fluid inlet section and a diverging fluid outlet section, the diverging fluid outlet section comprising an inner primary outlet (7) for condensables depleted fluid components and an outer secondary outlet for condensables enriched fluid components (6); and —a central body (10) provided upstream of the throat portion (4) in the fluid inlet section, the central body (10) being arranged substantially coaxial to a central axis I of the fluid separator. The fluid separator is arranged to facilitate a main flow through the converging fluid inlet section, the throat portion towards the diverging fluid outlet section. The central body (10) comprises an outlet (13), directed towards the tubular throat portion (4) and is arranged to add a central flow towards the throat portion (4).
    Type: Application
    Filed: March 26, 2008
    Publication date: June 17, 2010
    Applicant: TWISTER B.V.
    Inventors: Marco Betting, Cornelis Antonie Tjeenk Willink, Bart Prast, Zvonimir Opic