Patents by Inventor Ake Ralvert

Ake Ralvert 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: 10005213
    Abstract: A disc filter disposed around a drum for filtering water. The disc filter includes a frame structure and a plurality of filter segments arranged around the drum and secured to the support. Each filter segment includes a filter frame having first and second portions and filter material integrated with the first and second portions of the filter frame through an injection moulding process.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: June 26, 2018
    Assignee: Veolia Water Solutions & Technologies Support
    Inventor: Ake Ralvert
  • Publication number: 20160193767
    Abstract: A disc filter disposed around a drum for filtering water. The disc filter includes a frame structure and a plurality of filter segments arranged around the drum and secured to the support. Each filter segment includes a filter frame having first and second portions and filter material integrated with the first and second portions of the filter frame through an injection moulding process.
    Type: Application
    Filed: March 16, 2016
    Publication date: July 7, 2016
    Applicant: Veolia Water Solutions & Technologies Support
    Inventor: Ake Ralvert
  • Patent number: 8444862
    Abstract: A rotary disc filter device comprises a rotary drum and a plurality of disc-shaped filter members secured about the drum. Each disc-shaped filter member has a filtering material disposed on the outside thereof. A guide bar extends longitudinally across the disc-shaped filter members and has a movable carriage mounted thereon. One or more nozzles are operatively connected to the carriage for delivering cleaning fluid onto the filtering materials. The guide bar is rotates between a cleaning position and an adjustment position. When the guide bar is in the cleaning position, the nozzle is disposed adjacent to one of the disc-shaped filter members such that the nozzle is positioned to deliver cleaning fluid onto the filtering material. When the guide bar is in the adjustment position, the carriage is movable along the guide bar without interference from the disc-shaped filter members.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: May 21, 2013
    Assignee: Veolia Water Solutions & Technologies Support
    Inventor: Ake Ralvert
  • Publication number: 20120111805
    Abstract: A rotary disc filter device comprises a rotary drum and a plurality of disc-shaped filter members secured about the drum. Each disc-shaped filter member has a filtering material disposed on the outside thereof. A guide bar extends longitudinally across the disc-shaped filter members and has a movable carriage mounted thereon. One or more nozzles are operatively connected to the carriage for delivering cleaning fluid onto the filtering materials. The guide bar is rotates between a cleaning position and an adjustment position. When the guide bar is in the cleaning position, the nozzle is disposed adjacent to one of the disc-shaped filter members such that the nozzle is positioned to deliver cleaning fluid onto the filtering material. When the guide bar is in the adjustment position, the carriage is movable along the guide bar without interference from the disc-shaped filter members.
    Type: Application
    Filed: January 17, 2012
    Publication date: May 10, 2012
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventor: Ake Ralvert
  • Patent number: 8101090
    Abstract: A rotary disc filter device comprises a rotary drum and a plurality of disc-shaped filter members secured about the drum. Each disc-shaped filter member has a filtering material disposed on the outside thereof. A guide bar extends longitudinally across the disc-shaped filter members and has a movable carriage mounted thereon. One or more nozzles are operatively connected to the carriage for delivering cleaning fluid onto the filtering materials. The guide bar is rotates between a cleaning position and an adjustment position. When the guide bar is in the cleaning position, the nozzle is disposed adjacent to one of the disc-shaped filter members such that the nozzle is positioned to deliver cleaning fluid onto the filtering material. When the guide bar is in the adjustment position, the carriage is movable along the guide bar without interference from the disc-shaped filter members.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 24, 2012
    Assignee: Veolia Water Solutions & Technologies Support
    Inventor: Ake Ralvert
  • Publication number: 20100032388
    Abstract: A rotary disc filter device comprises a rotary drum and a plurality of disc-shaped filter members secured about the drum. Each disc-shaped filter member has a filtering material disposed on the outside thereof. A guide bar extends longitudinally across the disc-shaped filter members and has a movable carriage mounted thereon. One or more nozzles are operatively connected to the carriage for delivering cleaning fluid onto the filtering materials. The guide bar is rotates between a cleaning position and an adjustment position. When the guide bar is in the cleaning position, the nozzle is disposed adjacent to one of the disc-shaped filter members such that the nozzle is positioned to deliver cleaning fluid onto the filtering material. When the guide bar is in the adjustment position, the carriage is movable along the guide bar without interference from the disc-shaped filter members.
    Type: Application
    Filed: February 21, 2008
    Publication date: February 11, 2010
    Applicant: HYDROTECH VEOLIA WATER SYSTEMS AKTIEBOLAG
    Inventor: Ake Ralvert
  • Publication number: 20060260999
    Abstract: A rotary disk filter and a module for building a filter support for a rotary disk filter are disclosed. The rotary disk filter may comprise a drum, which is rotatable about its central longitudinal axis. The rotary disk filter may be adapted to receive a liquid which is to be filtered. In one implementation, the rotary disk filter may comprise at least one disk-shaped filter member which on the outside of the drum extends outwards in the transverse direction of the drum, and which has a filter support and at least one filter portion supported thereby. A first liquid duct may extend from the drum through the filter member and out through the filter portion. The filter portion may be made of filter segments, which are detachably secured to the filter support. At least one second liquid duct may extend between adjoining filter segments to provide liquid communication between the filter segments.
    Type: Application
    Filed: February 24, 2004
    Publication date: November 23, 2006
    Inventors: Ake Danielsson, Ake Ralvert, Emil Svensson, Per Larsson
  • Patent number: 6231761
    Abstract: A rotary disk filter comprises a rotatable drum (2) and at least one disk-shaped filter member (10), which on the outside of the drum extends outwards in the transverse direction of the drum. The filter member (10) has a filter support unit (40) and a filter portion (21) supported thereby. A liquid duct (6) extends from the drum (2) through the filter member (10) and out through the filter portion (21). The filter portion is formed of at least one filter segment (20) which comprises a filter frame (22) and a filter cloth (21) expanded by the frame. The filter segment (20) is detachably secured to the filter support unit.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: May 15, 2001
    Assignee: Hydrotech Nils-Ake Persson Aktiebolag
    Inventors: Anders Mohlin, Ake Ralvert