Patents by Inventor Ralf Wnuk
Ralf Wnuk 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).
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Patent number: 11801463Abstract: A filter apparatus (10) has a plurality of filter elements (20) in a filter housing (12) having a filter inlet (50) for a fluid to be filtered and a filter outlet (52) for the filtered fluid. A pressure control device (42) has at least one control plate (58) located inside a connection chamber (14). The control plate laterally passes over individual upper element openings (54) of the filter element to be backwashed (20), in a predefinable sequence, covering the opening to an increasing degree and then exposing the opening again. A discharge opening (46) of the backwash device (44) is, at least in part, fluidically connected to a lower element opening (56) of the filter element (20) to be backwashed, as the pressure control device (42) moves towards the upper element opening (54).Type: GrantFiled: April 27, 2018Date of Patent: October 31, 2023Assignee: HYDAC PROCESS TECHNOLOGY GMBHInventors: Ralf Wnuk, Thomas Boettcher
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Patent number: 11484819Abstract: A filter device for fluids has a filter housing (1), in which element receptacles (31) for a plurality of filter elements (33) are provided. The filter medium (35) of the filter elements (33) separates in the filter housing (1) a dirt side (5) from a clean side (7). The filter housing (1) can be opened for inserting and removing the filter elements (33). For the filter elements (33), a support basket (19) is provided, which can be inserted into the filter housing (1) and removed from the filter housing (1) and to which the filter elements (33) can be detachably fixed. The filter elements (33) have, in addition to the filter medium (35) for particle filtration, an adsorption medium (36).Type: GrantFiled: September 25, 2019Date of Patent: November 1, 2022Assignee: HYDAC PROCESS TECHNOLOGY GMBHInventors: Ralf Wnuk, Hans-Josef Schmidt, Pascal Eric Vitte
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Patent number: 11219847Abstract: A device for treating fluid, in particular a filter device, has first and second tubular elements (12), (14) forming an element assembly (10). One element (14) is accommodated in the other element (12) forming a flow chamber (33) between the two elements (12, 14), with a first element (12) arranged in the direction of the inflow side (29) of a fluid to be treated and a second element (14) arranged in the direction of the outflow side (31) of the treated fluid in the element assembly (10). During the fluid treatment, the flow is routed through both elements (12, 14) in succession from the direction of the inflow side (29) towards the outflow side (31). In a joint viewing direction (P), the first element (12) facing the inflow side (29) at least partially has a uniform or non-uniform contour and the second element (14) facing the outflow side (31) at least partially has a non-uniform or uniform contour.Type: GrantFiled: March 19, 2018Date of Patent: January 11, 2022Assignee: HYDAC PROCESS TECHNOLOGY GMBHInventors: Markus Olschok, Ralf Wnuk, Christian Schindler, Maximilian Meiners
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Publication number: 20210354061Abstract: A filter device for fluids, having a filter housing (1), in which element receptacles (31) for a plurality of filter elements (33) are provided, the filter medium (35) of which separates in the filter housing (1) a dirt side (5) from a clean side (7), wherein the filter housing (1) can be opened for inserting and removing the filter elements (33), and wherein for the filter elements (33) a support in the manner of a basket (19) is provided, which can be inserted into the filter housing (1) and removed from the filter housing (1) and to which the filter elements (33) can be detachably fixed, is characterized in that the filter elements (33) have in addition to the filter medium (35) for particle filtration an adsorption medium (36).Type: ApplicationFiled: September 25, 2019Publication date: November 18, 2021Inventors: Ralf WNUK, Hans-Josef SCHMIDT, Pascal Eric VITTE
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Patent number: 11058975Abstract: A filtering apparatus has filtering elements (11) in a filter housing (1), a filter inlet (7) and a filter outlet (9). During filtration, one of the filter elements (11) can be back-flushed by a back-flushing device (45, 49), having a pressure control device (19). The pressure control device has a hydraulic accumulator (19), with a fluid chamber (47) fillable during filtration with clean fluid and connectable for back-flushing via a back-flushing guide (45) to the clean side (29) of the filtering element (11) to be cleaned. For back-flushing, a further fluid chamber (48) of the hydraulic accumulator (19) is subjected to gas pressure. By resultant movement of a separator (59) of the hydraulic accumulator (19), the filling amount of the clean fluid is dispensed for the back-flushing.Type: GrantFiled: April 26, 2012Date of Patent: July 13, 2021Assignee: HYDAC PROCESS TECHNOLOGY GMBHInventors: Ralf Wnuk, Jörg Hermann Gerstner, Thomas Böttcher, Thomas Morawietz
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Patent number: 10537834Abstract: A filter apparatus has a plurality of filter elements (21) accommodated in a filter housing (1) with a filter inlet (11) and a filter outlet (13). During the operation one of the filter elements (21) can be backflushed by a backflushing device. The backflushing device includes a pressure control (7) to support the backflushing. Each filter elements (21) is accommodated in an element housing (30). The element housings (30) with the filter elements (21) performing the filtration process are connected to the fluid outlet (13) by their one open ends (33) in a fluid conducting manner. The element housing (30) of the filter element (21) being backflushed is exclusively connected with its open end (33) to the pressure control device (7).Type: GrantFiled: October 28, 2016Date of Patent: January 21, 2020Assignee: HYDAC PROCESS TECHNOLOGYInventors: Ralf Wnuk, Markus Olschok, Christian Schindler
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Publication number: 20200016518Abstract: A device for treating fluid, in particular a filter device, having at least one first (12) and one second tubular element (14) forming an element assembly (10) with each other, wherein the one element (14) is accommodated in the other element (12) forming a flow chamber (33) between the two elements (12, 14) such that a first element (12) is arranged in the direction of the inflow side (29) of a fluid to be treated and a second element (14) is arranged in the direction of the outflow side (31) of the treated fluid in the element assembly (10), and wherein during the fluid treatment, the flow is routed through both elements (12, 14) in succession from the direction of the inflow side (29) towards the outflow side (31), is characterized in that, in relation to a joint viewing direction (P), the first element (12) facing the inflow side (29) at least partially has a uniform or non-uniform con tour and the second element (14) facing the outflow side (31) at least partially has a non-uniform or uniform contour.Type: ApplicationFiled: March 19, 2018Publication date: January 16, 2020Inventors: Markus OLSCHOK, Ralf WNUK, Christian SCHINDLER, Maximilian MEINERS
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Publication number: 20190381429Abstract: The invention relates to a filter apparatus (10) comprising a plurality of filter elements (20) which can be received in a filter housing (12) having a filter inlet (50) for a fluid to be filtered and a filter outlet (52) for the filtered fluid, characterised in that a pressure control device (42) has at least one control plate (58) which, located inside a connection chamber (14), laterally passes over individual upper ele¬ment openings (54) of the filter element to be backwashed (20), in a predefinable se¬quence, covering the opening to an increasing degree and then exposing the opening again, and in that a discharge opening (46) of the backwash device (44) is, at least in part, fluidically connected to a lower element opening (56) of the filter element (20) to be backwashed, as the pressure control device (42) moves towards the upper element opening (54).Type: ApplicationFiled: April 27, 2018Publication date: December 19, 2019Inventors: Ralf WNUK, Thomas BOETTCHER
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Publication number: 20180257010Abstract: The invention relates to a filter apparatus having a plurality of filter elements (21) which can be accommodated in a filter housing (1) with a filter inlet (11) for fluid to be filtered and a filter outlet (13) for the filtered fluid, wherein during the operation of the device at least one of the filter elements (21) can be backflushed by means of a backflushing device for cleaning its effective surface, which backflushing device includes a pressure control device (7) to support the backflushing, characterized in that the filter elements (21) are each accommodated in an element housing (30), the element housings (30) with the filter elements (21) performing the filtration process are connected to the fluid outlet (13) by their one open end (33) in a fluid conducting manner, and the element housing (30) of the respective backflushable filter element (21) is exclusively connected with its one open end (33) to the pressure control device (7).Type: ApplicationFiled: October 28, 2016Publication date: September 13, 2018Inventors: Ralf WNUK, Markus OLSCHOK, Christian SCHINDLER
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Patent number: 10029194Abstract: A filter device includes at least one filter housing (1) in which at least one filter element (21) is arranged. Inside the filter housing (1), the filter element separates a clean side (9) from an untreated side (13). On the clean side (9) of the filter housing (1) at least one storage unit (3) having at least one movable separating element (47) is connected. The separating element divides the storage unit (3) into two working chambers or pressure chambers (49) (43).Type: GrantFiled: October 19, 2011Date of Patent: July 24, 2018Assignee: HYDAC PROCESS TECHNOLOGY GMBHInventors: Ralf Wnuk, Thomas Böttcher, Markus Olschok, Jörg Hermann Gerstner
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Patent number: 9855520Abstract: A filtering apparatus has a plurality of filtering elements (9) in a filter housing (1), a filter inlet (45) and a filter outlet (43). During the filtration operation, one of the filtering elements (9) can be back-flushed by a back-flushing device (13, 21). The back-flushing device has a pressure control device (13) including a hydraulic accumulator (13). One accumulator fluid chamber (67) can be filled during the filtration operation with a quantity of filtered fluid and can be connected for a back-flushing operation via a back-flushing guide (21) to the clean side (59) of the filtering clement (9) to be cleaned. Another accumulator fluid chamber (79) can be subjected to a media pressure.Type: GrantFiled: April 26, 2012Date of Patent: January 2, 2018Assignee: HYDAC PROCESS TECHNOLOGY GMBHInventors: Ralf Wnuk, Jörg Hermann Gerstner, Thomas Bottcher, Thomas Morawietz
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Patent number: 9744486Abstract: A filter device has filter elements (23) received in a filter housing (1) with a filter inlet (19) and a filter outlet (21). Flow passes through the filter elements (23) for a filtration or backwash in both directions. At least one filter element (23) performs the filtration. At least one other filter element (23), for cleaning off its active filter surface, can be backwashed by a backwash appliance. For supporting the backwashing, the appliance contains a pressure control (43) having a pressure control element (45). During a backwash operation, the fluid flow is controllable in a fluid connection between filter inlet (19) and the filter element (23) that is to be cleaned off. The fluid connection has a connection space (29) having element openings (27), each of which can be connected to an open end of the filter cavity forming the unfiltered side of each filter element (23). A fluid pathway (27) is provided via which, during the filtration, unfiltrate flows into the connection space (29).Type: GrantFiled: August 22, 2012Date of Patent: August 29, 2017Assignee: HYDAC PROCESS TECHNOLOGY GMBHInventors: Bernhard Schlichter, Ralf Wnuk, Christian Gessner, Albert Kaints
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Patent number: 9233326Abstract: A separating device for separating a multiphase medium includes a cyclone separating device (1) that provokes an at least partial distribution of at least two phases of the medium with the formation of a vortex flow for the medium. Each phase having a lower density compared to the other phase is separated from the other phase and can be guided out of the separating device by a collecting device (35, 37).Type: GrantFiled: September 28, 2011Date of Patent: January 12, 2016Assignee: HYDAC PROCESS TECHNOLOGY GMBHInventors: Bernhard Schlichter, Ralf Wnuk, Thomas Böttcher, Christoph Winter, Klaus Kimmerle
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Patent number: 9180388Abstract: A filter device for fluids, in particular for low viscosity fluids such as water, includes a filter housing (1) in which element holders (31) are provided for a plurality of filter elements (21). Filter medium (35) of each filter element in the filter housing (1) separates an unfiltered side (5) from a clean side (7). The filter housing (1) can be opened for inserting and removing the filter elements (21). A carrier in the form of a basket (19) is provided for the filter elements (21). The basket can be inserted into and removed from the filter housing (1). The filter elements (21) can be releasably secured at the basket.Type: GrantFiled: November 29, 2012Date of Patent: November 10, 2015Assignee: HYDAC PROCESS TECHNOLOGY GMBHInventors: Knut Herges, Ralf Wnuk, Norbert Lang, Nico Welsch
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Publication number: 20140202938Abstract: A filtering apparatus with a plurality of filtering elements (9) which can be accommodated in a filter housing (1) having a filter inlet (45) for fluid to be filtered and a filter outlet (43) for the filtered fluid, wherein during the filtration operation, at least one of the filtering elements (9) can be back-flushed by means of a back-flushing device (13, 21) in order to dedust the effective filtering surface of said filtering element, the back-flushing device comprising a pressure control device (13) for assisting the back-flushing operation, is characterized in that the pressure control device comprises a hydraulic accumulator (13), the one fluid chamber (67) of which can be filled during the filtration operation with a quantity of dedusted fluid and can be connected for a back-flushing operation via a back-flushing guide (21) to the clean side (59) of the filtering element (9) to be dedusted, and in that, for a back-flushing operation, a further fluid chamber (79) of the hydraulic accumulator (13) can beType: ApplicationFiled: April 26, 2012Publication date: July 24, 2014Inventors: Ralf Wnuk, Jörg Hermann Gerstner, Thomas Böttcher, Thomas Morawietz
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Publication number: 20140183110Abstract: A filter device having a plurality of filter elements (23) that can be received in a filter housing (1) having a filter inlet (19) for a fluid that is to be filtered and a filter outlet (21) for the filtered fluid, wherein flow can pass through the filter elements (23) for a filtration or backwash in both directions and wherein at the same time at least one filter element (23) performs the filtration and at least one other filter element (23), for cleaning off the active filter surface thereof, can be backwashed by means of a backwash appliance which, for supporting the backwashing, contains a pressure control appliance (43) which has a pressure control element (45) by means of which, during a backwash operation, the fluid flow is controllable in a fluid connection between filter inlet (19) and the filter element (23) that is to be cleaned off, is characterized in that the fluid connection has a connection space (29) having element openings (27) each of which can be connected to an open end of the filter caviType: ApplicationFiled: August 22, 2012Publication date: July 3, 2014Inventors: Bernhard Schlichter, Ralf Wnuk, Christian Gessner, Albert Kaints
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Publication number: 20140124430Abstract: A filter device for fluids, in particular for low viscosity fluids such as water, comprising a filter housing (1) in which element holders (31) are provided for a plurality of filter elements (21), whose filter medium (35) in the filter housing (1) separates an unfiltered side (5) from a clean side (7), wherein the filter housing (1) can be opened for the purpose of inserting and removing the filter elements (21), is characterized in that a carrier in the form of a basket (19) is provided for the filter elements (21), said basket can be inserted into and removed from the filter housing (1), and the filter elements (21) can be releasably secured at said basket.Type: ApplicationFiled: November 29, 2012Publication date: May 8, 2014Applicant: Hydac Process Technology GmbHInventors: Knut Herges, Ralf Wnuk, Norbert Lang, Nico Welsch
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Publication number: 20140091021Abstract: A filtering apparatus with a plurality of filtering elements (11) which can be accommodated in a filter housing (1) having a filter inlet (7) for fluid to be filtered and a filter outlet (9) for the filtered fluid, wherein during the filtration operation, at least one of the filtering elements (11) can be back-flushed by means of a back-flushing device (45, 49) in order to dedust the effective filtering surface of said filtering element, the back-flushing device comprising a pressure control device (19) for assisting the back-flushing operation, is characterized in that the pressure control device comprises a hydraulic accumulator (19), the one fluid chamber (47) of which can be filled during the filtration operation with a quantity of dedusted fluid and can be connected for a back-flushing operation via a back-flushing guide (45) to the clean side (29) of the filtering element (11) to be dedusted, and in that, for a back-flushing operation, a further fluid chamber (48) of the hydraulic accumulator (19) can bType: ApplicationFiled: April 26, 2012Publication date: April 3, 2014Applicant: HYDAC PROCESS TECHNOLOGY GMBHInventors: Ralf Wnuk, Jörg Hermann Gerstner, Thomas Böttcher, Thomas Morawietz
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Publication number: 20130292321Abstract: The invention relates to a filter device comprising at least one filter housing (1) in which at least one filter element (21) is arranged. Inside the filter housing (1), the filter element separates a clean side (9) from an untreated side (13). The device is characterised in that, on the clean side (9) of the respective filter housing (1) at least one storage unit (3) having at least one movable separating element (47) is connected, which divides the storage unit (3) into two working chambers (49) or pressure chambers (43).Type: ApplicationFiled: October 19, 2011Publication date: November 7, 2013Applicant: HYDAC PROCESS TECHNOLOGY GmbHInventors: Ralf Wnuk, Thomas Bottcher, Markus Olschok, Jörg Hermann Gerstner
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Publication number: 20130232927Abstract: The invention relates to a separating device for separating a multiphase medium, comprising a cyclone separating device (1) that provokes an at least partial distribution of at least two phases of said medium with the formation of a vortex flow for the medium. The invention is characterized in that each phase, which has a lower density compared to the respective other phase, is separated from said other phase and can be guided out of the separating device by means of a collecting device (35, 37).Type: ApplicationFiled: September 28, 2011Publication date: September 12, 2013Inventors: Bernhard Schlichter, Ralf Wnuk, Thomas Böttcher, Christoph Winter, Klaus Kimmerle