Patents Assigned to Brinkmann Pumpen, K.H. Brinkmann GmbH & Co. KG
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Patent number: 10718328Abstract: A threaded spindle machine includes a metal middle housing part (12) arranged between housing end caps (24) and forming a fluid chamber (16) for receiving a plurality of threaded spindles rotatably supported in the housing end caps (24); an insert (18) adhered into the middle housing part, which insert forms a wear-resistant running surface for the threaded spindles on the inner wall of the fluid chamber (16) and defines an adhesive gap (20) with the inner surface of the middle housing part (12); and at least one filling channel (26) leading from an outer surface of the middle housing part (12) to the adhesive gap (20), and the filling channel (26) extends from an end of the middle housing part (12) which is adjacent to a housing end cap (24).Type: GrantFiled: November 3, 2016Date of Patent: July 21, 2020Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventors: Markus Helpertz, Matthias Radermacher
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Patent number: 10280933Abstract: A pump having a cutting wheel (20) and a pre-cutter (26) driven by a shaft portion (24) that projects axially from the cutting wheel (20) and has a plurality of wings (28) that extend radially from the shaft portion (24), wherein the wings (28) differ in their axial arrangement on the shaft portion (24).Type: GrantFiled: August 18, 2014Date of Patent: May 7, 2019Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventors: Guido Sowa, Dirk Wenderott
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Patent number: 10054136Abstract: A pump having a cutting wheel and a pre-cutter (26) for cutting chippings that are contained in the medium pumped by the pump, the pre-cutter being driven by a shaft portion that projects axially from the cutting wheel and having a plurality of wings (28), the pre-cutter being surrounded by a crest of anvil blocks (32) at which the free ends of the wings (28) move past in a little distance when the pre-cutter rotates, wherein the anvil blocks are configured as counter-blades (32) that are held exchangeably at a blade carrier (34) that surrounds the pre-cutter (26) at least on a part of its periphery.Type: GrantFiled: August 18, 2014Date of Patent: August 21, 2018Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventors: Guido Sowa, Dirk Wenderott
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Patent number: 9759326Abstract: A sealing arrangement for a pump shaft, includes a restrictor section (18) arranged along the shaft (16) and separating a high-pressure chamber (12) of the pump from a sealing chamber (20), a seal (22) arranged on the shaft (16) and between the sealing chamber (20) and a low-pressure chamber (30), a restrictor leakage line (34) leading from the sealing chamber (20) to the exterior, and a seal leakage line (42) leading from the low-pressure chamber (30) to the exterior, wherein a section of the seal leakage line (42) runs through the interior of the restrictor leakage line (34).Type: GrantFiled: June 1, 2015Date of Patent: September 12, 2017Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventors: Markus Helpertz, Matthias Radermacher
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Patent number: 9488421Abstract: A coolant system for machine tools, includes a pump (12) for the coolant, at least one consumer (10), a pressure sensor (24) for detecting an actual pressure (Pi) in the coolant system, a feedback control device (22) acting upon the pump (12) for regulating the pressure in the coolant system to a target pressure (Ps), and a limiting valve (26) for limiting the pressure of the coolant supplied to the consumer, wherein in that the opening pressure (Plim) of the limiting valve (26) is variable and the feedback control device (22) is adapted to adjust the opening pressure in accordance with the target pressure (Ps) such that it is always a certain amount larger than the target pressure.Type: GrantFiled: August 21, 2012Date of Patent: November 8, 2016Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventors: Dirk Wenderott, Andreas Kandzior, Jens Holger Ulrich
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Patent number: 8794944Abstract: A screw spindle machine having a tubular casing (10) that is made of cast metal and is lined with a wear resistant layer (16), with the wear resistant layer (16) being encapsulated in a steel shell (20) that matches the outer peripheral shape of the layer (16).Type: GrantFiled: September 28, 2010Date of Patent: August 5, 2014Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventor: Peter Wagner
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Publication number: 20120288395Abstract: A screw spindle machine having a tubular casing (10) that is made of cast metal and is lined with a wear resistant layer (16), with the wear resistant layer (16) being encapsulated in a steel shell (20) that matches the outer peripheral shape of the layer (16).Type: ApplicationFiled: September 28, 2010Publication date: November 15, 2012Applicant: BRINKMANN PUMPEN K.H. BRINKMANN GMBH & CO. KGInventor: Peter Wagner
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Patent number: 8267643Abstract: A pump includes a cutting impeller (38) and a pre-chopper (50) driven by a shaft portion (46) that projects axially from the cutting impeller (38), with the pre-chopper (50) being surrounded by an intake port (22) of the pump, the intake port having, at least on a part of its length, in the vicinity of the pre-chopper, a non-circular internal cross-section.Type: GrantFiled: July 1, 2009Date of Patent: September 18, 2012Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventors: Peter Wagner, Dirk Wenderott
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Patent number: 8003912Abstract: Method for manufacturing a machine housing having a fluid chamber (14) with a hardening layer (16) on an internal wall surface, in which the hardening layer (16) is made of a material, that, per-se, is not electrically conductive but has been made conductive by additives, and in that the surface of the hardening layer (16) is machined by electro-discharge machining.Type: GrantFiled: May 29, 2008Date of Patent: August 23, 2011Assignee: Brinkmann Pumpen K. H. Brinkmann GmbH & Co. KGInventor: Peter Wagner
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Patent number: 7967553Abstract: A pump having an axial impeller (40) with helical blades (38) for sucking liquid through an intake opening (38) formed at a bottom side of the axial impeller (40), in which the blades (38) are provided, at the bottom side of the axial impeller (40), with a first cutting edge (58) which, when the axial impeller (40) rotates, are in cutting relation with at least one second cutting edge (60) formed at the intake opening (36).Type: GrantFiled: November 11, 2005Date of Patent: June 28, 2011Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventor: Peter Wagner
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Patent number: 7811051Abstract: Pump having a cutting impeller (38), counter knives (40) associated therewith, and a pre-chopper (48) which is driven by a shaft portion (46) that projects axially from the cutting impeller (38), characterised in that the counter knives (40) carry a cutting edge (52) that extends in longitudinal direction of the shaft portion (46).Type: GrantFiled: February 16, 2006Date of Patent: October 12, 2010Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventor: Peter Wagner
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Publication number: 20100178518Abstract: Method for manufacturing a machine housing having a fluid chamber (14) with a hardening layer (16) on an internal wall surface, in which the hardening layer (16) is made of a material, that, per-se, is not electrically conductive but has been made conductive by additives, and in that the surface of the hardening layer (16) is machined by electro-discharge machining.Type: ApplicationFiled: May 29, 2008Publication date: July 15, 2010Applicant: BRINKMANN PUMPEN K.H. BRINKMANN GMBH & CO. KGInventor: Peter Wagner
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Publication number: 20100003124Abstract: A pump includes a cutting impeller (38) and a pre-chopper (50) driven by a shaft portion (46) that projects axially from the cutting impeller (38), with the pre-chopper (50) being surrounded by an intake port (22) of the pump, the intake port having, at least on a part of its length, in the vicinity of the pre-chopper, a non-circular internal cross-section.Type: ApplicationFiled: July 1, 2009Publication date: January 7, 2010Applicant: BRINKMANN PUMPEN K.H. BRINKMANN GMBH & CO. KGInventors: Peter Wagner, Dirk Wenderott
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Publication number: 20090092479Abstract: A pump having an axial impeller (40) with helical blades (38) for sucking liquid through an intake opening (38) formed at a bottom side of the axial impeller (40), in which the blades (38) are provided, at the bottom side of the axial impeller (40), with a first cutting edge (58) which, when the axial impeller (40) rotates, are in cutting relation with at least one second cutting edge (60) formed at the intake opening (36).Type: ApplicationFiled: November 11, 2005Publication date: April 9, 2009Applicant: BRINKMANN PUMPEN K.H. BRINKMANN GMBH & CO. KGInventor: Peter Wagner
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Publication number: 20080213087Abstract: A pump for liquids at positive pressure, includes a pump chamber (18) accommodating an impeller (24), wherein the impeller (24) is axially biased against a non-rotating support element (48) which determines the axial position of the impeller (24). The shaft (42) may be coupled to a drive shaft (64) through a magnet coupling (56, 62).Type: ApplicationFiled: November 12, 2005Publication date: September 4, 2008Applicant: BRINKMANN PUMPEN K.H. BRINKMANN GMBH & CO. KGInventor: Peter Wagner
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Publication number: 20080152481Abstract: Pump having a cutting impeller (38), counter knives (40) associated therewith, and a pre-chopper (48) which is driven by a shaft portion (46) that projects axially from the cutting impeller (38), characterised in that the counter knives (40) carry a cutting edge (52) that extends in longitudinal direction of the shaft portion (46).Type: ApplicationFiled: February 16, 2006Publication date: June 26, 2008Applicant: BRINKMANN PUMPEN K.H. BRINKMANN GMBH & CO. KGInventor: Peter Wagner
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Patent number: 6168376Abstract: Centrifugal pump with a pump chamber (18) housing a radial impeller (20) and aspiration port arranged coaxially with the radial impeller, and at least one ventilating conduit (26) that leads from the inner radial area of the pump chamber to the outside, wherein the outer circumferential edge of the pump chamber (18) is fitted with interference contours (32) that are essentially directed tangentially to swirl the liquid flow.Type: GrantFiled: February 4, 1999Date of Patent: January 2, 2001Assignee: Brinkmann Pumpen, K.H. Brinkmann GmbH & Co. KGInventor: Peter Wagner