Patents by Inventor Hen Hoefnagels

Hen Hoefnagels 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).

  • Method of producing a filament wound curved product and product obtained thereby
    Patent number: 10112356
    Abstract: The invention relates to a curved product, and in particular an armor product. The armor product is produced by a filament winding process in which a plurality of reinforcing elements in the form of fibers and/or tapes are impregnated with a polymer matrix and wound onto a mandrel. The polymer matrix comprises a solution and/or dispersion of a polymer in a carrier fluid, which carrier fluid is at least partly evaporated during and/or after winding. The armor product comprises a high amount of reinforcing elements with respect to the total mass of the product.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: October 30, 2018
    Assignee: DSM IP ASSETS B.V.
    Inventors: Roelof Marissen, Lucas Van Den Akker, Sotiris Koussios, Hen Hoefnagels
  • METHOD OF PRODUCING A FILAMENT WOUND CURVED PRODUCT AND PRODUCT OBTAINED THEREBY
    Publication number: 20140000796
    Abstract: The invention relates to a curved product, and in particular an armor product. The armor product is produced by a filament winding process in which a plurality of reinforcing elements in the form of fibers and/or tapes are impregnated with a polymer matrix and wound onto a mandrel. The polymer matrix comprises a solution and/or dispersion of a polymer in a carrier fluid, which carrier fluid is at least partly evaporated during and/or after winding. The armor product comprises a high amount of reinforcing elements with respect to the total mass of the product.
    Type: Application
    Filed: September 3, 2013
    Publication date: January 2, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Roelof MARISSEN, Lucas VAN DEN AKKER, Sotiris KOUSSIOS, Hen HOEFNAGELS
  • Process for the manufacture of a shaped part and shaped part obtainable with said process
    Patent number: 8329084
    Abstract: The invention relates to a process for the manufacture of a shaped part comprising the steps of—forming a stack by stacking (2) or more sheets comprising mono-layers of unidirectional anti-ballistic fibers and a binder followed by placing the stack in a mould, clamping the stack in the mould with a control member closing the mould—consolidating the stack under temperature and pressure into a curved shaped part. The invention furthermore relates to products obtainable with said process, which are very suitable for use in anti-ballistic applications and include e.g. helmets, curved panels, cones and domes.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: December 11, 2012
    Assignee: DSM IP Assets B.V.
    Inventors: Jean H. M. Beugels, William A. C. Roovers, Martin A. Es,Van, Roelof Marissen, Hen Hoefnagels
  • PROCESS FOR THE MANUFACTURE OF A SHAPED PART AND SHAPED PART OBTAINABLE WITH SAID PROCESS
    Publication number: 20100162458
    Abstract: The invention relates to a process for the manufacture of a shaped part comprising the steps of—forming a stack by stacking (2) or more sheets comprising mono-layers of unidirectional anti-ballistic fibers and a binder followed by placing the stack in a mould, clamping the stack in the mould with a control member closing the mould—consolidating the stack under temperature and pressure into a curved shaped part. The invention furthermore relates to products obtainable with said process, which are very suitable for use in anti-ballistic applications and include e.g. helmets, curved panels, cones and domes.
    Type: Application
    Filed: March 21, 2007
    Publication date: July 1, 2010
    Inventors: Jean H.M. Beugels, William A.C. Roovers, Martin A. Es,Van, Roelof Marissen, Hen Hoefnagels