Patents by Inventor Sjoerd Degroot

Sjoerd Degroot 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).

  • Impact attenuator and vehicle, trailer and guardrail comprising such an impact attenuator
    Patent number: 9739328
    Abstract: An impact attenuator including an impact head, coupled to a first end of an energy absorption body, which energy absorption body is arranged for fixation to an external structure at a second end opposing the first end of the energy absorption body, configured to at least partly absorb or dissipate energy from a collision of an object with the impact head, and including a first part and a second part extending substantially lengthwise behind each other, wherein the first and second part are mutually moveable and including a first and a second cutting edge, wherein, the first cutting edge is arranged for splitting the first part of the energy absorption body upon impact of an object colliding with the impact head, and the second cutting edge is arranged for consecutively splitting the second part of the energy absorption body upon impact of an object colliding with the impact head.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: August 22, 2017
    Assignee: Verdegro Holding B.V.
    Inventors: Sjoerd Degroot, Gerrit Verwijs
  • IMPACT ATTENUATOR AND VEHICLE, TRAILER AND GUARDRAIL COMPRISING SUCH AN IMPACT ATTENUATOR
    Publication number: 20170234393
    Abstract: An impact attenuator including an impact head, coupled to a first end of an energy absorption body, which energy absorption body is arranged for fixation to an external structure at a second end opposing the first end of the energy absorption body, configured to at least partly absorb or dissipate energy from a collision of an object with the impact head, and including a first part and a second part extending substantially lengthwise behind each other, wherein the first and second part are mutually moveable and including a first and a second cutting edge, wherein, the first cutting edge is arranged for splitting the first part of the energy absorption body upon impact of an object colliding with the impact head, and the second cutting edge is arranged for consecutively splitting the second part of the energy absorption body upon impact of an object colliding with the impact head.
    Type: Application
    Filed: February 12, 2016
    Publication date: August 17, 2017
    Inventors: Sjoerd Degroot, Gerrit Verwijs