Patents by Inventor Jens Erik Thordahl Petersen

Jens Erik Thordahl Petersen 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: 11946179
    Abstract: The invention relates to a former head of the kind which is used for forming, such as dry forming, of a fibrous web, where fibers are supplied to the former head mixed with air via at least one injection inlet. The former head comprising: a) a roller being rotatable in a rotation direction around a rotation axis and comprising: a roller surface surrounding the rotation axis, and a plurality of projections extending outwardly, such as radially outwardly, from the roller surface, b) a screen extending along at least part of the roller surface above the rotation axis, the roller surface and the screen defining therebetween a peripheral gap, and c) the injection inlet, wherein the injection inlet is positioned to conduct the mixture of the fibers and air into the peripheral gap in a delivery direction opposite or substantial opposite to the rotation direction of the roller.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: April 2, 2024
    Assignee: Campen Machinery A/S
    Inventor: Jens Erik Thordahl Petersen
  • Publication number: 20220001573
    Abstract: The invention relates to a former head of the kind which is used for forming, such as dry forming, of a fibrous web, where fibres are supplied to the former head mixed with air via at least one injection inlet. The former head comprising: a) a roller being rotatable in a rotation direction around a rotation axis and comprising: a roller surface surrounding the rotation axis, and a plurality of projections extending outwardly, such as radially outwardly, from the roller surface, b) a screen extending along at least part of the roller surface above the rotation axis, the roller surface and the screen defining therebetween a peripheral gap, and c) the injection inlet, wherein the injection inlet is positioned to conduct the mixture of the fibres and air into the peripheral gap in a delivery direction opposite or substantial opposite to the rotation direction of the roller.
    Type: Application
    Filed: November 14, 2019
    Publication date: January 6, 2022
    Inventor: Jens Erik Thordahl PETERSEN
  • Patent number: 7278187
    Abstract: A method and an apparatus for manufacturing a multi-layer fabric including at least one fibre layer formed by airlaying combined with at least one further layer which is formed by different technologies, including carding, spunlacing, meitblowing, spunbonding, or airlaying, or combined with one or more films. The airforming is performed on a separate formerwire which is applied vacuum via a suction box disposed opposite to a formerhead, and where the airformed fibre layer is transferred to a conveyor wire for joining with a further layer. Edge trimming is performed at least on the airformed layer before it is joined with one or more other layers for forming the multi-layered fabric. Scrap from edge trimming and exhaust from the suction box is returned to the formerhead.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: October 9, 2007
    Assignee: Dan-Web Holding A/S
    Inventor: Jens Erik Thordahl Petersen