Patents by Inventor Preben Bøje Hansen

Preben Bøje Hansen 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).

  • Publication number: 20230311030
    Abstract: An apparatus for the separation of dry matter and liquid from a medium includes: a plurality of press rollers and at least one pore roller, at least one separation chamber for receiving the medium, and at least one filtrate chamber defined in cross section by press rollers and the at least one pore roller. The apparatus is configured for establishing a relative negative pressure inside the pore roller interior, such that liquid in the medium is sucked into the pore roller interior, and for roller rotation such that during separation operation dry matter of the medium initially passes between the pore roller and a press roller when transferring from the separation chamber to the filtrate chamber, and subsequently passes between two press rollers, when exiting from the filtrate chamber.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 5, 2023
    Inventors: Preben Bøje Hansen, Peter Reimer Stubbe
  • Publication number: 20200147531
    Abstract: The present invention relates to the field of filtering, more precisely the present invention concerns an apparatus and a method for the separation of dry matter from a medium and the use of said apparatus. One embodiment discloses an apparatus for the separation of dry matter and liquid from a medium, comprising a plurality of press rollers, a separation chamber for receiving the medium and defined, in cross section, by the press rollers, and at least one chamber filter located inside and enclosed by the separation chamber. The apparatus is preferably configured such that a negative pressure can be established in said chamber filter(s) relative to the separation chamber such that liquid in the medium can be sucked into the chamber filter(s) and dry matter in the medium can pass between corresponding press roller.
    Type: Application
    Filed: May 24, 2017
    Publication date: May 14, 2020
    Inventors: Peter Stubbe, Preben Bøje Hansen
  • Patent number: 9409105
    Abstract: The present invention relates to a filtering apparatus and method for mixing a compound of solid and fluid phases, separating the phases and/or extracting fluid from the compound. One embodiment of the invention discloses a filtering apparatus comprising a first filter section accommodating a first group of filter members, and a second filter section accommodating a second group of filter members, a piping system providing pipelined fluid communication between the filter sections and between a filter section and said filter section's corresponding group of filter members, the piping system configured such that the filter members form filtered fluid openings of the filtering apparatus, and circulation means, such as a pump, configured for passing fluid in a forward flow and/or in a reverse flow between the filter sections. In particular the invention may be used for the mashing process in a beer brewing procedure.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: August 9, 2016
    Assignee: Technical University of Denmark
    Inventors: Peter Stubbe, Preben Bøje Hansen
  • Publication number: 20140147904
    Abstract: The present invention relates to a filtering apparatus and method for mixing a compound of solid and fluid phases, separating the phases and/or extracting fluid from the compound. One embodiment of the invention discloses a filtering apparatus comprising a first filter section accommodating a first group of filter members, and a second filter section accommodating a second group of filter members, a piping system providing pipelined fluid communication between the filter sections and between a filter section and said filter section's corresponding group of filter members, the piping system configured such that the filter members form filtered fluid openings of the filtering apparatus, and circulation means, such as a pump, configured for passing fluid in a forward flow and/or in a reverse flow between the filter sections. In particular the invention may be used for the mashing process in a beer brewing procedure.
    Type: Application
    Filed: August 13, 2012
    Publication date: May 29, 2014
    Applicant: TECHNICAL UNIVERSITY OF DENMARK
    Inventors: Peter Stubbe, Preben Bøje Hansen
  • Patent number: 7651619
    Abstract: A method and an apparatus for separating dry matter from liquid includes an enclosed separation environment capable of being pressure regulated. Within the enclosed separation environment, a suspension is brought into contact with at least one filter so as to accumulate dry matter on the at least one filter. The filter with the dry matter passes through at least one set of rollers such that liquid is removed from the dry matter on the at least one filter to form a substantially dry filter cake. Thereafter, the substantially dry filter cake is removed from the at least one filter. The above steps are performed in the enclosed separation environment either under vacuum or overpressure. The invention may be used in various fields such as the food industry.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: January 26, 2010
    Inventors: Preben Bøje Hansen, Peter Stubbe, Hanne Birch, Kirsten Grønning Sørensen