Patents by Inventor Maarten Spanjers

Maarten Spanjers 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).

  • Convolute tube
    Patent number: 10836131
    Abstract: A convolutely wound tube (1) is formed of a composite sheet including a first sheet (6) and a second sheet (5). The convolutely wound tube includes a first segment (66) formed of a plurality of convolute windings (2) of the first sheet, a second segment (70) formed of directly adhered and overlapping portions of the first sheet and the second sheet, and a third segment (68) formed of the second sheet wrapped about and overlying the first sheet. The second segment is an underwrap portion positioned between a layer of the first sheet and a layer of the second sheet.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: November 17, 2020
    Assignee: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.
    Inventors: Maarten Spanjers, Wouter Siemons
  • CONVOLUTE TUBE
    Publication number: 20190263082
    Abstract: A convolutely wound tube (1) is formed of a composite sheet including a first sheet (6) and a second sheet (5). The convolutely wound tube includes a first segment (66) formed of a plurality of convolute windings (2) of the first sheet, a second segment (70) formed of directly adhered and overlapping portions of the first sheet and the second sheet, and a third segment (68) formed of the second sheet wrapped about and overlying the first sheet. The second segment is an underwrap portion positioned between a layer of the first sheet and a layer of the second sheet.
    Type: Application
    Filed: October 25, 2017
    Publication date: August 29, 2019
    Inventors: Maarten Spanjers, Wouter Siemons
  • Pipeline laying vessel and method of laying a pipeline
    Patent number: 8251613
    Abstract: The invention relates to a pipeline laying vessel (1) for laying a pipeline (2) at a seabed (3) and comprising a tower (4) comprising a firing line (5) along which in use the pipeline is laid and at least one work station (6) for connecting a pipe section (7) to a suspended pipeline and a method of laying pipeline at a sea bed with such a pipe laying vessel.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: August 28, 2012
    Assignee: Heerema Marine Contractors Nederland B.V.
    Inventors: Robert Reinder Narold, Cornelis van Zandwijk, Coen Maarten Spanjers
  • PIPELINE LAYING VESSEL AND METHOD OF LAYING A PIPELINE
    Publication number: 20100111612
    Abstract: The invention relates to a pipeline laying vessel (1) for laying a pipeline (2) at a seabed (3) and comprising a tower (4) comprising a firing line (5) along which in use the pipeline is laid and at least one work station (6) for connecting a pipe section (7) to a suspended pipeline and a method of laying pipeline at a sea bed with such a pipe laying vessel.
    Type: Application
    Filed: April 2, 2008
    Publication date: May 6, 2010
    Applicant: HEEREMA MARINE CONTRACTORS NEDERLAND B.V.
    Inventors: Robert Reinder Narold, Cornelis van Zandwijk, Coen Maarten Spanjers