Patents by Inventor Markus Maretyak

Markus Maretyak 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: 8298421
    Abstract: A filter device for the insertion of filter elements (28) to be positioned in a filter housing (10) having a filter inlet (20) and a filter outlet (22) for the fluid to be filtered. The filter elements (28) are traversed in both directions for filtration or backwashing. Certain filter elements (28) perform the filtration in a filtration position and at least one additional filter element (28) can be backwashed in a backwashing position to clean its active filtration surface. As the individual filter elements (28) are brought into the backwashing position and are then returned to their filtration position in succession by a pivoting device (30), the filter elements are individually displaced into the backwashing position in a temporal sequence, in contrast to prior art, where an arm-type backwashing device is pivoted towards the individual filter elements to carry out the backwashing process.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: October 30, 2012
    Assignee: Hydac Process Technology GmbH
    Inventors: Ralf Wnuk, Markus Maretyak
  • Patent number: 7131540
    Abstract: The invention relates to a separating device, particularly for separating solids from liquids, preferably from the quantity of reverse flow of a reverse flow filter system. The separating device comprises: a spinning screen provided in the form of a drum screen (17) having an annular screen wall (21); a spray tube (15), which supplies the liquid to the drum screen (17) and which, with regard to its opening (26) to the inside of the screen wall (21) of the drum screen (17), extends in an at least approximately tangential manner thereto in order to produce a spinning flow of the liquid on the screen wall (21); a housing (19) that surrounds the drum screen (17) while serving to hold the liquid passing through said screen wall (21), and; an exit (29) located at the bottom (27) of the drum screen (17) while serving to discharge the separated substances.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: November 7, 2006
    Assignee: Hydac Process Technology GmbH
    Inventors: Ralf Wnuk, Markus Maretyak
  • Publication number: 20060163144
    Abstract: The invention relates to a separating device, particularly for separating solids from liquids, preferably from the quantity of reverse flow of a reverse flow filter system. The separating device comprises: a spinning screen provided in the form of a drum screen (17) having an annular screen wall (21); a spray tube (15), which supplies the liquid to the drum screen (17) and which, with regard to its opening (26) to the inside of the screen wall (21) of the drum screen (17), extends in an at least approximately tangential manner thereto in order to produce a spinning flow of the liquid on the screen wall (21); a housing (19) that surrounds the drum screen (17) while serving to hold the liquid passing through said screen wall (21), and; an exit (29) located at the bottom (27) of the drum screen (17) while serving to discharge the separated substances.
    Type: Application
    Filed: October 7, 2003
    Publication date: July 27, 2006
    Inventors: Ralf Wnuk, Markus Maretyak