Patents by Inventor Klaas de Groot

Klaas de Groot 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: 10399830
    Abstract: A hoisting crane includes a slew bearing. The slew bearing includes a top bearing ring, a bottom bearing ring, a first row of axial load rollers and a second row of axial load rollers, which rows of axial load rollers are provided between a corresponding top roller raceway and bottom roller raceway. The top bearing ring has a top wall which extends above the first row of axial load rollers and in which at least one top entry port is provided. Furthermore, the top roller raceway of the first row of axial load rollers includes a removable raceway segment releasable attached in the top entry port. The removable raceway segment can be removed to enable access via the top entry port to the first row of axial load rollers to remove axial load rollers in a substantially vertical direction.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: September 3, 2019
    Assignee: ITREC B.V.
    Inventors: Anne Klaas De Groot, Joop Roodenburg
  • Publication number: 20160368743
    Abstract: A hoisting crane includes a slew bearing. The slew bearing includes a top bearing ring, a bottom bearing ring, a first row of axial load rollers and a second row of axial load rollers, which rows of axial load rollers are provided between a corresponding top roller raceway and bottom roller raceway. The top bearing ring has a top wall which extends above the first row of axial load rollers and in which at least one top entry port is provided. Furthermore, the top roller raceway of the first row of axial load rollers includes a removable raceway segment releasable attached in the top entry port. The removable raceway segment can be removed to enable access via the top entry port to the first row of axial load rollers to remove axial load rollers in a substantially vertical direction.
    Type: Application
    Filed: December 5, 2014
    Publication date: December 22, 2016
    Applicant: ITREC B.V.
    Inventors: Anne Klaas DE GROOT, Joop ROODENBURG
  • Publication number: 20160095880
    Abstract: The invention pertains to a biocompatible composition, suitable for use in soft or hard tissue augmentation, wherein the composition is an aqueous suspension containing a carrier fraction of ceramic particles of less than 15 ?m and an augmentation fraction of ceramic particles of at least 20 ?m. The ceramics typically comprise calcium phosphate. The composition is a may be used in soft tissue repair as well as hard bone replacement. It advantageously avoids the need for foreign body materials which are conventionally applied to stabilize augmentation suspensions.
    Type: Application
    Filed: December 11, 2015
    Publication date: April 7, 2016
    Applicant: Cam Bioceramics B.V.
    Inventors: Klaas DE GROOT, Nienke de ROODE-BEULING, Nol VAN DE MORTEL, Mariska BEZEMER
  • Patent number: 9233189
    Abstract: The invention pertains to a biocompatible composition, suitable for use in soft or hard tissue augmentation, wherein the composition is an aqueous suspension containing a carrier fraction of ceramic particles of less than 15 ?m and an augmentation fraction of ceramic particles of at least 20 ?m. The ceramics typically include calcium phosphate. The composition is a may be used in soft tissue repair as well as hard bone replacement. It advantageously avoids the need for foreign body materials which are conventionally applied to stabilize augmentation suspensions.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: January 12, 2016
    Assignee: Cam Bioceramics B.V.
    Inventors: Klaas De Groot, Nienke de Roode-Beuling, Nol Van De Mortel, Mariska Bezemer
  • Patent number: 8460685
    Abstract: The invention relates to methods of improving the osteoinductivity of calcium phosphate materials, to calcium phosphate materials having improved osteoinductivity as well as bone (re)generation scaffolds produced therefrom and to the use of such materials and scaffolds in methods of treatment.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: June 11, 2013
    Assignee: Progentix Orthobiology B.V.
    Inventors: Huipin Yuan, Joost Dick De Bruijn, Klaas De Groot
  • Patent number: 8240954
    Abstract: The present invention relates to a marine pipeline installation system for laying an offshore pipeline and/or installing a subsea riser, said system being adapted to carry out the reel lay method and the J-lay method. The system comprises a vessel with a moonpool, a pipeline launch tower arranged on the vessel, a pipeline guide at an elevated position on said tower for guiding said pipeline to a pipeline launch trajectory along said tower, and one or more tensioners. The support assembly of at least one tensioner frame is adapted to allow for displacement of the tensioner frame between an active position, wherein the pipeline launch trajectory extends through the tensioner frame between the tracks, so that the tracks can engage on a pipeline, and a retracted and non-operable position. The system further comprises a J-Lay installation.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: August 14, 2012
    Assignee: ITREC B.V.
    Inventors: Joop Roodenburg, Anne Klaas De Groot, Diederick Bernardus Wijning, Terence Willem August Vehmeijer
  • Patent number: 8056492
    Abstract: A vessel (2) for handling subsea equipment comprising a subsea equipment hoist system including a winch and a hoist cable (3) for lowering and retrieving subsea equipment (5) in a hoist area of the vessel, a subsea equipment motion restraining and guidance system for restraining subsea equipment motion relative to the vessel in the hoist area. The subsea equipment motion restraining and guidance system includes a main trolley (7), an auxiliary trolley (8) and a vertical trolley guide structure (9) mounted on the hull of the vessel that allows for vertical travel of the trolleys and further a top end engagement member (10), which is movably supported by said main trolley and which is adapted to engage on a top end of the subsea equipment, and one or more rail engaging members (3a) mounted on said auxiliary trolley, each adapted to engage on a vertical rail (11) mounted on said subsea equipment as said subsea equipment passes vertically by said auxiliary trolley.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: November 15, 2011
    Assignee: Itrec B.V.
    Inventors: Joop Roodenburg, Anne Klaas De Groot, Pieter Dirk Melis Van Duivendijk
  • Publication number: 20110182671
    Abstract: The present invention relates to a marine pipeline installation system for laying an offshore pipeline and/or installing a subsea riser, said system being adapted to carry out the reel lay method and the J-lay method. The system comprises a vessel with a moonpool, a pipeline launch tower arranged on the vessel, a pipeline guide at an elevated position on said tower for guiding said pipeline to a pipeline launch trajectory along said tower, and one or more tensioners. The support assembly of at least one tensioner frame is adapted to allow for displacement of the tensioner frame between an active position, wherein the pipeline launch trajectory extends through the tensioner frame between the tracks, so that the tracks can engage on a pipeline, and a retracted and non-operable position. The system further comprises a J-Lay installation.
    Type: Application
    Filed: April 1, 2011
    Publication date: July 28, 2011
    Inventors: Joop ROODENBURG, Anne Klaas De Groot, Diederick Bernardus Wijning, Terence Willem August Vehmeijer
  • Patent number: 7955028
    Abstract: Marine pipelaying method and system for installing an offshore pipeline (1) that includes one or more accessories (10). The method includes the steps of providing a vessel (2), launching the pipeline (1) in a firing line from the vessel (2) in the direction of the seabed, engaging the pipeline (1) with a clamping device (5b) that is connected to the vessel (2) and adapted to support the weight of the previously launched pipeline (1), and moving the accessory (10) into the firing line to a position above the clamping device (5b).
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: June 7, 2011
    Assignee: ITREC B V
    Inventors: Joop Roodenburg, Anne Klaas De Groot, Diederick Bernardus Wijning
  • Patent number: 7938598
    Abstract: A marine pipeline installation system for laying an offshore pipeline and/or installing a subsea riser, the system at least allowing to carry out the reel lay method, wherein the system comprises: one or more storage reels for storage of pipeline, a pipeline launch tower adapted for launching the pipeline in the direction of the sea, a pipeline guide at an elevated position for guiding said pipeline to a pipeline launch trajectory along said tower, one or more tensioners, each tensioner comprising a tensioner frame and multiple tracks supported by said tensioner frame, said tracks being adapted for engaging the pipeline and supporting at least part of the weight of the launched pipeline, the tensioner frame being supported by said tower via an associated support assembly.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: May 10, 2011
    Assignee: Itrec B.V.
    Inventors: Joop Roodenburg, Anne Klaas De Groot, Diederick Bernardus Wijning, Terence Willem August Vehmeijer
  • Patent number: 7878735
    Abstract: The marine pipelaying system for vertical or near vertical laying of an offshore pipeline (20) includes a main supporting structure (5); a pipe connecting station (30), wherein a pipe section (21) is connected to an uppermost end (20a) of a previously launched pipeline; a static clamp (35) adapted for releasably securing the uppermost end of the previously launched pipeline, wherein the static clamp is adapted to support the weight of the<->previously launched pipeline; a mobile clamp (40) adapted for releasably securing the previously launched pipeline at a position below the static clamp, wherein the mobile clamp is adapted to support the weight of the offshore pipeline as the offshore pipeline is released from the static clamp; and a mobile clamp hoist (10) connected to the mobile clamp.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: February 1, 2011
    Assignee: ITREC B.V.
    Inventors: Joop Roodenburg, Pieter Dirk Melis van Duivenduk, Anne Klaas de Groot
  • Publication number: 20100232884
    Abstract: A marine pipeline installation system for laying an offshore pipeline and/or installing a subsea riser, the system at least allowing to carry out the reel lay method, wherein the system comprises: one or more storage reels for storage of pipeline, a pipeline launch tower adapted for launching the pipeline in the direction of the sea, a pipeline guide at an elevated position for guiding said pipeline to a pipeline launch trajectory along said tower, one or more tensioners, each tensioner comprising a tensioner frame and multiple tracks supported by said tensioner frame, said tracks being adapted for engaging the pipeline and supporting at least part of the weight of the launched pipeline, the tensioner frame being supported by said tower via an associated support assembly.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 16, 2010
    Applicant: ITREC B.V.
    Inventors: Joop Roodenburg, Anne Klaas De Groot, Diederick Bernardus Wijning, Terence Willem August Vehmeijer
  • Publication number: 20100136117
    Abstract: The invention pertains to a biocompatible composition, suitable for use in soft or hard tissue augmentation, wherein the composition is an aqueous suspension containing a carrier fraction of ceramic particles of less than 15 &mgr;m and an augmentation fraction of ceramic particles of at least 20 &mgr;m. The ceramics typically comprise calcium phosphate. The composition is a may be used in soft tissue repair as well as hard bone replacement. It advantageously avoids the need for foreign body materials which are conventionally applied to stabilize augmentation suspensions.
    Type: Application
    Filed: October 4, 2007
    Publication date: June 3, 2010
    Inventor: Klaas DE GROOT
  • Publication number: 20100003304
    Abstract: The invention relates to methods of improving the osteoinductivity of calcium phosphate materials, to calcium phosphate materials having improved osteoinductivity as well as bone (re)generation scaffolds produced therefrom and to the use of such materials and scaffolds in methods of treatment.
    Type: Application
    Filed: April 21, 2006
    Publication date: January 7, 2010
    Applicant: PROGENTIX B.V.
    Inventors: Huipin Yuan, Joost D. De Bruijn, Klaas De Groot
  • Publication number: 20090199757
    Abstract: A vessel (2) for handling subsea equipment comprising a subsea equipment hoist system including a winch and a hoist cable (3) for lowering and retrieving subsea equipment (5) in a hoist area of the vessel, a subsea equipment motion restraining and guidance system for restraining subsea equipment motion relative to the vessel in the hoist area. The subsea equipment motion restraining and guidance system includes a main trolley (7), an auxiliary trolley (8) and a vertical trolley guide structure (9) mounted on the hull of the vessel that allows for vertical travel of the trolleys and further a top end engagement member (10), which is movably supported by said main trolley and which is adapted to engage on a top end of the subsea equipment, and one or more rail engaging members (3a) mounted on said auxiliary trolley, each adapted to engage on a vertical rail (11) mounted on said subsea equipment as said subsea equipment passes vertically by said auxiliary trolley.
    Type: Application
    Filed: August 29, 2005
    Publication date: August 13, 2009
    Applicant: Itrec B.V.
    Inventors: Joop Roodenburg, Anne Klaas De Groot, Pieter Dirk Melis Van Duivendijk
  • Publication number: 20080304912
    Abstract: Marine pipelaying method and system for installing an offshore pipeline (1) that includes one or more accessories (10). The method includes the steps of providing a vessel (2), launching the pipeline (1) in a firing line from the vessel (2) in the direction of the seabed, engaging the pipeline (1) with a clamping device (5b) that is connected to the vessel (2) and adapted to support the weight of the previously launched pipeline (1), and moving the accessory (10) into the firing line to a position above the clamping device (5b).
    Type: Application
    Filed: February 8, 2005
    Publication date: December 11, 2008
    Applicant: Itrec B.V.
    Inventors: Joop Roodenburg, Anne Klaas De Groot, Diederick Bernardus Wijning
  • Publication number: 20080118311
    Abstract: The marine pipelaying system for vertical or near vertical laying of an offshore pipeline (20) includes a main supporting structure (5); a pipe connecting station (30), wherein a pipe section (21) is connected to an uppermost end (20a) of a previously launched pipeline; a static clamp (35) adapted for releasably securing the uppermost end of the previously launched pipeline, wherein the static clamp is adapted to support the weight of the<->previously launched pipeline; a mobile clamp (40) adapted for releasably securing the previously launched pipeline at a position below the static clamp, wherein the mobile clamp is adapted to support the weight of the offshore pipeline as the offshore pipeline is released from the static clamp; and a mobile clamp hoist (10) connected to the mobile clamp.
    Type: Application
    Filed: March 11, 2005
    Publication date: May 22, 2008
    Inventors: Joop Roodenburg, Pieter Dirk Melis, Anne Klaas de Groot
  • Patent number: 7255515
    Abstract: The marine pipelaying system for vertical or near vertical laying of an offshore pipeline includes a main supporting structure; a pipe connecting station, wherein a pipe section is connected to an uppermost end of a previously launched pipeline; a static clamp adapted for releasably securing the uppermost end of the previously launched pipeline, wherein the static clamp is adapted to support the weight of the previously launched pipeline; a mobile clamp adapted for releasably securing the previously launched pipeline at a position below the static clamp, wherein the mobile clamp is adapted to support the weight of the offshore pipeline as the offshore pipeline is released from the static clamp; and a mobile clamp hoist connected to the mobile clamp.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: August 14, 2007
    Assignee: Itrec B.V.
    Inventors: Joop Roodenburg, Pieter Dirk Melis van Duivendijk, Anne Klaas de Groot
  • Patent number: 7226244
    Abstract: The invention is vessel with a tower adapted to be inclined for handling of tubulars mad of a vessel, a tower with a mast that can be inclined, a pipe reel for storing passing tubulars, a strut with a sleeve for engaging and enabling tower inclination, and a tensioner mounted moveably on the mast for receiving the tubular wherein the tensioner is made of two connectors connected to the mast, a frame that engages the connectors, two track bodies that engage the tensioner frame and the tubular, and an adjustable vertical support adapted to modify the relationship between the force transmitted by the adjustable vertical support onto the tensioner and the motion of the tensioner relative to the mast.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: June 5, 2007
    Assignee: Itrec B.V.
    Inventors: Anne Klaas De Groot, Joop Roodenburg
  • Patent number: 6994883
    Abstract: The invention relates to the field of medical devices. More in particular, the invention relates to a method for coating by depositing inorganic ions and a bioactive agent to provide sterile medical devices, wherein said coating improves the biocompatibility and/or bioactivity of a medical device, such as an orthopedic or dental prosthesis. Furthermore, the invention relates to a medical device coated with a method according to the invention and to a reactor for use in a method according to the invention.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: February 7, 2006
    Assignee: IsoTis S.A.
    Inventors: Pierre Jean F. Layrolle, Martin Stigter, Klaas De Groot, Yuelian Liu