With Cutter Or Comminutor For Debris In Working Fluid Patents (Class 415/121.1)
  • Patent number: 10837456
    Abstract: The present invention relates to a volute pump for delivering a liquid containing fibrous substances. The volute pump includes an impeller (1) having a vane (2), and an impeller casing (5) which houses the impeller (1) therein. The impeller casing (5) includes a volute chamber (7), a suction port (3) and a discharge port (4) which communicate with the volute chamber (7), and a tongue portion (10) which forms a starting portion of the volute chamber (7). A groove (18), extending from the suction port (3) to the volute chamber (7), is formed in an inner surface of the impeller casing (5). An intersection point (B), where a terminal end of the vane (2) passes across the groove (18) as viewed from an axial direction of the impeller (1), is located at an opposite side from the tongue portion (10) with respect to a central point of the impeller (1).
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: November 17, 2020
    Assignee: EBARA CORPORATION
    Inventors: Masahito Kawai, Hiromi Sakacho, Masashi Obuchi, Hiroshi Uchida, Miho Isono, Kenta Tokairin
  • Patent number: 10801520
    Abstract: A centrifuge turbo machinery includes an impeller which rotates about an axis to pressure-feed fluid flowing along the axis to an outer side in a radial direction, and a casing which accommodates the impeller and has a facing surface facing the impeller in an axial direction. A convex portion relatively close to the impeller and extending in the radial direction and a concave portion relatively spaced apart from the impeller and extending in the radial direction are alternately and continuously formed on the facing surface in a circumferential direction.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: October 13, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takeshi Sano, Taiki Asahara
  • Patent number: 10533557
    Abstract: Embodiments of the invention provide a cutting assembly for a chopper pump. The cutting assembly includes a cutting insert having a cutting blade extending radially therefrom, and an impeller having a central hub, a plurality of vanes, and an insert surface. The insert surface defines an axial recess that is dimensioned to receive the cutting insert therein. The cutting assembly further includes a cutting plate having a plate hub with a cutting extension protruding radially inward therefrom. Rotation of the impeller rotates the cutting blade past the cutting extension.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: January 14, 2020
    Assignee: Pentair Flow Technologies, LLC
    Inventor: Jack Bevington
  • Patent number: 10426145
    Abstract: The utility model provides a wave-making pump with a novel directional structure, comprising a casing, a motor, an impeller and a fixing device, wherein the motor is fixed in the casing; the impeller is arranged at the output end of the motor; the fixing device is used for fixing the casing; the casing comprises a rear casing and a diversion protective cover arranged on the front side of the rear casing; openings are formed in the two ends of the diversion protective cover; a hollow groove helically extending is formed in the peripheral surface of the diversion protective cover. As the hollow groove helically extending is formed in the peripheral surface of the diversion protective cover, the water flow produced by wave-making pump with the novel directional structure is wider, softer and more uniform, and the aquatic environment closer to the natural ecological water wave is convenient to create.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: October 1, 2019
    Inventor: Xiao Jun Zhang
  • Patent number: 9982384
    Abstract: A drain pump and a clothes dryer having a drain pump are provided. The drain pump may include a pump motor; an impeller including a hub, an impeller shaft that extends from a center of the hub and is connected to a rotational shaft of the pump motor, and at least one blade that extends from an outer circumferential surface of the impeller shaft; a housing including an impeller hole, through which the impeller may pass, and a space in which the pump motor may be accommodated; and a pump case coupled to a bottom surface of the housing. The pump case may have a suction hole to suction in cleaning water. The suction hole may be defined at a position corresponding to the impeller, and the pump case may include a shaft shield that extends from an edge of the suction hole in a central direction of the suction hole or toward a central portion of the suction hole to cover a lower end of the impeller shaft.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 29, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinhyouk Shin, Woocheol Kang, Minseong Kim, Sungjun Kim
  • Patent number: 9976566
    Abstract: A radial compressor has at least one compressor stage. The compressor stage includes: an impeller having moving blades on a rotor side arranged in a flow channel of the compressor stage. The flow channel is bounded by a hub contour and a housing contour or cover disc contour. Each moving blade has a flow inlet edge and a flow outlet edge. In the region of the compressor stage on the hub contour of the flow channel, initially a curvature change from a first concave curvature into a convex curvature and following this a curvature change from the convex curvature into a second concave curvature is formed; and/or on the housing contour or cover disc contour of the flow channel, initially a curvature change from a first convex curvature into a concave curvature and following this a curvature change from the concave curvature into a second convex curvature is formed.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: May 22, 2018
    Assignee: MAN Diesel & Turbo SE
    Inventors: André Hildebrandt, Thomas Ceyrowsky
  • Patent number: 9500204
    Abstract: A waste water pump includes an impeller (10) having a suction port (12) with a sealing surface (14) which annularly surrounds this and which bears on a stationary seal (18). At least one groove (28) is formed in the sealing surface (14) and to both sides extends beyond a bearing-contact region of the stationary seal (18) on the sealing surface (14). The stationary seal (18) having a first end (30) in connection with an impeller side chamber (20) and an opposite second end (32) is in connection with the suction side of the impeller (10). The pump also includes means (34) for producing turbulences arranged in the impeller side chamber (20) adjacent the seal (18).
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: November 22, 2016
    Assignee: Grundfos Holding a/s
    Inventors: Benny Fredslund Hansen, Poul Johannes Henning
  • Publication number: 20150118024
    Abstract: A centrifugal pump having an impeller assembly within a pump housing and a wear plate positioned in confronting relationship with the impeller assembly. The wear plate includes an annular wear plate portion defining an impeller side that confronts the impeller and further defines an annular portion defining an eye formed generally centrally and has a center point that is substantially aligned with a rotational axis of the impeller. The eye includes a plurality of peripheral notches separated by tooth-like spacer gaps. At least one protrusion extends from the eye towards the impeller at a predetermined angle. Inner and outer radial grooves are formed in the wear plate surface that confronts the impeller.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Inventors: Bryce Thiel, Michael Stoffer
  • Patent number: 8979476
    Abstract: A pump for solids handling is provided having a suction liner in combination with an impeller. The suction liner has a suction liner spiral design. The impeller has forward curved impeller suction side pump out vanes.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: March 17, 2015
    Assignee: ITT Manfacturing Enterprises, LLC.
    Inventors: Mark Alan Davis, Eugene P. Sabini, Simon Craig Caioneach Bradshaw
  • Publication number: 20150023783
    Abstract: Wastewater pump comprising a reversible motor (110) driving a rotor (160) equipped with blades (170). The rotor (160) is a disc (165) bearing pivoting blades (170) each mounted on a radial spindle (167) borne by the rotor. Each blade (170) is composed of a plate (171) bearing an articulation node (175) engaged on the spindle and a cutter (172) on the back of the plate forming a prop supporting the plate in the active position when the rotor (160) is rotating in the forward direction (D), and the cutter (172) projecting in the peripheral direction when the rotor (160) turns in the reverse direction (R), the plate (171) being applied against the disc (165). A fixed ring surrounds the disc and bears at least one cutter (135).
    Type: Application
    Filed: July 17, 2014
    Publication date: January 22, 2015
    Inventor: Stephané Dumonceaux
  • Publication number: 20140377055
    Abstract: A centrifugal pump with a cutter mechanism has a toothed cutter auger affixed to an impeller, and a toothed cutter stator affixed to the volute casing. The auger is a rotor cutter preferably profiled radially to match the inlet geometry of the impeller vanes while extending along its central axis towards the pump suction. The auger is preferably radially concentric to the impeller and includes vanes numbered preferably to match the number of vanes on the impeller. The auger is affixed to the impeller, preferably with a lockscrew threaded into a common pump shaft. The radial profile of the auger essentially makes a continuous vane with the impeller, and prevents solids from hanging on the inlet vane tip or center void while providing a smooth flow transition into the impeller.
    Type: Application
    Filed: September 12, 2014
    Publication date: December 25, 2014
    Inventors: James Garvin, Andrew Enterline, Steven J. Schoenbrun
  • Patent number: 8905341
    Abstract: A screw-type centrifugal pump with scissoring back cutters and having a housing with an intake opening and an outlet opening, both in fluid communication with an internal chamber, and an impeller assembly positioned within the chamber, is disclosed. Generally speaking, the impeller assembly has a hub having a back shroud and being attached to a rotatable pump shaft, with an impeller attached to the hub. An insert cutter positioned on a surface of the hub shroud opposite the impeller includes a cutting edge configured for shearing operation, while a stationary back plate having a surface adjacent to and facing the hub shroud includes a cutting rib having a cutting edge configured for shearing operation. The insert cutter and cutting rib work jointly to create a cutting action as the hub rotates in the chamber.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: December 9, 2014
    Assignee: Vaughan Company, Inc.
    Inventors: Glenn R. Dorsch, Kent H. Keeran, Rich Ballou, Alex Cahoon
  • Patent number: 8882439
    Abstract: Embodiments relate to a guiding apparatus, a wind turbine system, and methods related thereto. In an embodiment, a guiding apparatus for guiding a flow of a fluid for use with a rotor, the rotor comprising an annular radial vane assembly surrounding a central space which is enclosed save via the vane assembly and being arranged to rotate about a vertical axis, includes a screening for guiding the fluid to circulate substantially about the vertical axis within the central space in the same direction as the rotor during use, wherein the screening comprises an inner guide array concentrically surrounded by the vane assembly.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: November 11, 2014
    Inventor: Guy Andrew Vaz
  • Patent number: 8814990
    Abstract: A device for separating liquid from gas in a well flow when compressing the well flow comprises a liquid separator having an inlet for the well flow, an outlet for gas and an outlet for liquid. According to the invention separated liquid from the liquid separator is fine-divided in connection with the liquid outlet, and fine-divided liquid is supplied into the gas outlet at a mixing point downstream the liquid separator and upstream a compressor.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: August 26, 2014
    Assignee: Aker Subesa AS
    Inventors: Kjeli Olav Stinessen, Geir Inge Olsen
  • Patent number: 8784038
    Abstract: A cutter assembly and high volume submersible shredder pump. These are for reducing the size of solids within a liquid which is to be pumped by chopping, grinding, shredding or cutting. An improvement over prior designs employs cutting lobes having a grooved surface which mate with corresponding grooves of a circular plate cutter. As a result, many more cutting surfaces are provided which more effectively and quickly shred the solid materials within the liquid to be expelled.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: July 22, 2014
    Inventor: Alfredo A. Ciotola
  • Publication number: 20140064929
    Abstract: A centrifugal pump with a cutter mechanism consisting of a toothed cutter rotor, integral with the impeller wear ring, affixed to the impeller and a toothed cutter stator affixed to the casing, separately from the casing wear ring. A cutter mechanism consisting of a stator and rotor set such that they may be installed on the centrifugal pump impeller and casing as original equipment or as a retrofit. A cutter mechanism such that when installed in a centrifugal pump they prevent stringy materials, garbage and other agglomerated soft wastewater solids from partially restricting or totally blocking the inlet to the pump impeller. A cutter mechanism such that when it prevents solids from restricting or blocking the impeller inlet, it does so without significant decrease of flow throughput or significant increase in absorbed hydraulic horsepower.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Inventors: John D. Adams, Frank D. Timmons, James C. Garvin, Steve J. Schoenbrun
  • Patent number: 8657564
    Abstract: A chopper pump is provided with a motor having a drive shaft and a casing connected to the motor and defining a bowl with an inlet for receiving waste material. A cover plate assembly is secured about the inlet. The cover plate assembly having a base with a central opening and a plurality of serrations formed into the base and spaced about the central opening, each serration being formed into a curved pocket and longitudinally tapered to form an edge on an inner surface of the base. The chopper pump also includes a cutter having a hub that is connected to the drive shaft. The cutter extends through the central opening of the base and includes at least two blades extending radially outward to guide waste material toward the plurality of serrations.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: February 25, 2014
    Inventor: Walter James Cuppetelli
  • Publication number: 20140044521
    Abstract: A multipurpose rotary device includes a rotor configured to include a plurality of blades in a circumferential direction; and a load guide body configured to guide a flow of fluids flowing into the inside of the rotor, wherein the load guide body includes an upper support member and a lower support member configured to be disposed to face each other at the upper and lower sides thereof and connected to one another such that the rotor is rotatably installed; load guide plates configured to correspond to the blades and are rotatably installed between the upper and lower support members in a longitudinal direction; and stop pins configured to be formed on inner surfaces facing the upper and lower support members to control a rotational angle of the load guide plates.
    Type: Application
    Filed: March 16, 2012
    Publication date: February 13, 2014
    Inventor: Myung-soon Bae
  • Patent number: 8619423
    Abstract: Disclosed is a fan module used in electronic equipment and the like. The fan module of the present invention includes a dust-collecting part which has an air’-suction port and an air-discharge port, and which has a rotational region forming a passage linking the air-suction port to the air-discharge port and has a dust-collection box for collecting dust and detritus rotating in the rotational region; and a fan which is joined to one side of the dust-collecting part and makes air flow into the rotational region. The present invention can use centrifugal force to effectively remove various forms of dust and detritus contained in the air which flows into the casings of electronic equipment, household appliances and the like due to the action of a fan. Further, since a filter is not used, there is the advantage that the cooling efficiency is not reduced by the dust collection as the smooth flow of the air being sucked in is not disturbed.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: December 31, 2013
    Assignee: V.L. System Co., Ltd.
    Inventors: Cheol-Hyun Kim, Sung-Chul Park
  • Patent number: 8562287
    Abstract: A pump is provided including a cutter plate disposed at a pump inlet including a plurality of holes. Multiple embodiments provide that the pump includes a rotatable cutter blade disposed substantially adjacent to the cutter plate. Embodiments include those wherein the plurality of holes are angled in a direction of rotation of the cutter blade. In some embodiments, the cutter blade has at least one relief hole and at least one cutting edge. Additional embodiments include those wherein a ring extends outward from the pump inlet for channeling material toward the pump inlet in a substantially perpendicular approach with respect to the cutter plate.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: October 22, 2013
    Assignee: Zoeller Pump Company, LLC
    Inventors: William Schmidt, Charles Carroll, Bryan Schilling
  • Patent number: 8511965
    Abstract: A guiding apparatus for guiding a flow of a fluid for use with a rotor, the rotor comprising an annular radial vane assembly surrounding a central space which is enclosed save via the vane assembly and being arranged to rotate about a vertical axis, the guiding apparatus comprising a screening for guiding the fluid to circulate substantially about the vertical axis within the central space in the same direction as the rotor during use.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: August 20, 2013
    Inventor: Guy Andrew Vaz
  • Patent number: 8500393
    Abstract: A pump for chopping solid material in a liquid stream having a volute housing, a rotating cutter with at least one blade parallel to a rotational axis of the rotating cutter, an impeller arranged at an outer circumference of the rotating cutter, and a stationary cutter having at least one blade parallel to the rotational axis of the rotating cutter. The stationary cutter is concentric with the rotating cutter, and the stationary cutter, the rotating cutter and the impeller are all at least partially housed within the volute housing. Typically, the rotating cutter has a different number of blades than the stationary cutter. Optionally, the pump, further comprises an inspection cover that is removably attached to the pump, and has an opening large enough to remove the stationary cutter and the rotating cutter from the volute housing.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: August 6, 2013
    Assignee: The Gorman-Rupp Company
    Inventors: John Cartwright, Eddie Cottrell, David Oswalt
  • Publication number: 20130121811
    Abstract: A chopper pump is provided with a motor having a drive shaft and a casing connected to the motor and defining a bowl with an inlet for receiving waste material. A cover plate assembly is secured about the inlet. The cover plate assembly having a base with a central opening and a plurality of serrations formed into the base and spaced about the central opening, each serration being formed into a curved pocket and longitudinally tapered to form an edge on an inner surface of the base. The chopper pump also includes a cutter having a hub that is connected to the drive shaft. The cutter extends through the central opening of the base and includes at least two blades extending radially outward to guide waste material toward the plurality of serrations.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 16, 2013
    Inventor: Walter James Cuppetelli
  • Patent number: 8439639
    Abstract: A gas turbine engine component having a filter mounted adjacent an impingement cavity to filter particles out of a secondary cooling airflow outboard of a cooling channel in communication with the secondary cooling airflow.
    Type: Grant
    Filed: February 24, 2008
    Date of Patent: May 14, 2013
    Assignee: United Technologies Corporation
    Inventors: Christopher R. Joe, Eric A. Hudson, Keith A. Santeler
  • Publication number: 20130108411
    Abstract: A cutter assembly and high volume submersible shredder pump. These are for reducing the size of solids within a liquid which is to be pumped by chopping, grinding, shredding or cutting. An improvement over prior designs employs cutting lobes having a grooved surface which mate with corresponding grooves of a circular plate cutter. As a result, many more cutting surfaces are provided which more effectively and quickly shred the solid materials within the liquid to be expelled.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 2, 2013
    Inventor: ALFREDO A. CIOTOLA
  • Patent number: 8366384
    Abstract: The invention refers to a pump assembly, and more specifically to a chopping pump assembly comprising a cutting wheel mounted on a drive shaft in coaxial and co-rotational relation with a pump wheel, and a cutting plate stationary mountable in a pump housing between the cutting wheel and the pump wheel, the cutting plate having perforations forming passages there through for a liquid to be transported by the pump wheel in rotation, the cutting wheel and cutting plate in co-operation providing a shearing interface effective for cutting solid matter which may be entrained in the liquid. An axial clearance between the cutting wheel and cutting plate is established at all times by eliminating an axial play in a threaded engagement between the cutting wheel and the drive shaft. The invention also refers to a method by which an operative shearing action is securable in the pump assembly.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: February 5, 2013
    Assignee: Xylem IP Holdings LLC
    Inventor: Bengt Södergård
  • Publication number: 20120321444
    Abstract: A pump apparatus includes a particulate pump that defines a passage that extends from an inlet to an outlet. A duct is in flow communication with the outlet. The duct includes a deconsolidator configured to fragment particle agglomerates received from the passage.
    Type: Application
    Filed: July 31, 2012
    Publication date: December 20, 2012
    Inventors: Chandrashekhar Sonwane, Timothy Saunders, Mark Andrew Fitzsimmons, Kenneth M. Sprouse
  • Patent number: 8267643
    Abstract: 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: Grant
    Filed: July 1, 2009
    Date of Patent: September 18, 2012
    Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KG
    Inventors: Peter Wagner, Dirk Wenderott
  • Patent number: 8231337
    Abstract: The invention relates to a pump for pumping contaminated liquid including solid matter, comprising a pump housing provided with a rotatable impeller suspended in a drive shaft and having at least one vane, and an impeller seat, at least one part of the impeller and the impeller seat being movable in the axial direction in relation to each other. Furthermore, the impeller seat presents at least one groove in the top surface thereof.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: July 31, 2012
    Assignee: Xylem IP Holdings LLC
    Inventor: Patrik Andersson
  • Patent number: 8197192
    Abstract: The invention relates to a pump for pumping contaminated liquid including solid matter, comprising an impeller (1), which is rotatable in a pump chamber of said pump, the impeller (1) being movable in the axial direction in relation to a seal housing cover (3) between a first position adjacent to an impeller seat (2) and a second position spaced apart from said impeller seat (2), said pump also comprising a cavity (17) defined by the seal housing cover (3) and the impeller (1), and at least one opening gap (20) connecting said cavity and said pump chamber. Furthermore, said opening gap (20) has a first flow area when the impeller (1) is in the first position, and a second flow area bigger than said first flow area when the impeller (1) is' spaced apart from said first position.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: June 12, 2012
    Assignee: Xylem IP Holdings LLC
    Inventor: Patrik Andersson
  • Publication number: 20120114462
    Abstract: A screw-type centrifugal pump with scissoring back cutters and having a housing with an intake opening and an outlet opening, both in fluid communication with an internal chamber, and an impeller assembly positioned within the chamber, is disclosed. Generally speaking, the impeller assembly has a hub having a back shroud and being attached to a rotatable pump shaft, with an impeller attached to the hub. An insert cutter positioned on a surface of the hub shroud opposite the impeller includes a cutting edge configured for shearing operation, while a stationary back plate having a surface adjacent to and facing the hub shroud includes a cutting rib having a cutting edge configured for shearing operation. The insert cutter and cutting rib work jointly to create a cutting action as the hub rotates in the chamber.
    Type: Application
    Filed: January 16, 2012
    Publication date: May 10, 2012
    Applicant: Vaughan Company, Inc.
    Inventors: Glenn R. Dorsch, Kent H. Keeran, Rich Ballou, Alex Cahoon
  • Patent number: 8157513
    Abstract: An axial flow fan according to the present invention comprises an impeller which rotates about a central axis and including a plurality of blades, a hollow member accommodating therein the impeller, a base portion which is arranged at the hollow member and supports the base portion in a rotatable manner, a plurality of inner air guide members each connected to the base portion, and a plurality of outer air guide members each connected to the hollow member. The inner air guide members and the outer air guide members each include a first edge member and a second edge portion. A length of the first edge member and that of the second edge member of the outer air guide member are greater than those of the first edge member and the second edge member of the inner air guide member.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: April 17, 2012
    Assignee: Nidec Corporation
    Inventors: Hidenobu Takeshita, Toshikazu Fukunaga, Tsunenori Tatsuno
  • Patent number: 8128345
    Abstract: A housing includes a major component. The major component has a planar section. The planar section has an aperture constituting an inlet. The major component has a generally cylindrical peripheral section. A tangential extension is provided. The aperture constitutes an outlet. The housing also includes a minor component. The minor component has a planar section. The planar section has an aperture. The aperture constitutes an outlet. A tangential extension is adapted to overlie the major component for creating a chamber. A rotatable assembly includes an annular plate. The annular plate has an aperture. Spaced impeller segments are provided. A propeller is also provided. The propeller has an axial bore. Propeller blades are provided. Openings are provided between the blades. The bore is adapted to receive a drive shaft of a motor. In this manner the propeller and the annular plate and the impeller segments are rotated.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: March 6, 2012
    Assignee: Jamesway Farm Equipment Inc.
    Inventors: Frank L. Airosa, Brad D. Myrick
  • Patent number: 8124019
    Abstract: The pump assembly includes an impeller rotatably mounted in a pipe of the reactor having blades that generate a flow of fluid slurry through the pipe, a nosecone protruding in an upstream direction in front of the impeller blades that rotates along with the blades, and a plurality of stationary guide vanes connected to the housing upstream of the impeller blades and having free ends that are radially spaced apart from the nosecone. The leading edges of the stationary vanes are shaped to direct any stringy material into the radial gaps between the free ends of the stationary vanes and the rotating nose cone to be shredded and thus prevent fouling and clogging of the pump assembly when such stringy material is generated during the polymerization process.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: February 28, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Robert G. DePierri, Norman F. Cook
  • Patent number: 8109730
    Abstract: The invention relates to a pump for pumping contaminated liquid including solid matter, comprising a pump housing provided with a rotatable impeller (3) having at least one vane (9) and an impeller seat (4), the impeller seat (4) presenting at least one recess (13) in the top surface (11) thereof, a sheering/cutting action arising between an cutting edge (15) of said recess (13) and a lower edge (14) of the vane (9) as the impeller (3) rotates relative to the impeller seat (4). Furthermore, the pump also comprises means for guiding the solid matter towards said recess (13), the guiding means comprising at least one guide in and at least one projection (20), an upper surface (19) of the guide pin extending from a position contiguous to the most inner part of the vane (9) of the impeller (3) towards the impeller seat (4), and the projection (20) protruding from the impeller seat (4).
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: February 7, 2012
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventor: Patrik Andersson
  • Patent number: 8109714
    Abstract: A sewage pump is to mount a blade set coaxially mounted between a water paddle disk and a first wheel blade within the blade chamber, wherein the blade set comprises a stationary annular blade base and a movable second wheel blade. The second wheel blade is within the annular blade base fixed to an inner wall of the blade chamber. Particularly, the stationary blade base and the second wheel blade respectively have blade sheets facing toward each other. When the sewage pump is driven by its motor, the water paddle disk, the first and second wheel blades are rotated to cause a suction force to drive precipitation flow into the blade chamber via the precipitation inlet. The first wheel blade cooperates with a gear ring to perform a first smashing stage and then the blade set performs a second smashing stage to improve the smashing efficiency of the sewage pump.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: February 7, 2012
    Inventor: Robert M. Keener
  • Patent number: 8105017
    Abstract: The disclosed solid waste pump is a chopper pump, and preferably a chopper pump having a small rated motor and a semi-open impeller design. Particularly, a chopper pump having an impeller, at least one pump-out vane, an end plate, and a back plate including at least one cutting rib is disclosed. The impeller includes a back shroud and cutting vanes sharpened on a first edge extending opposite the back shroud and fixed on a first surface of the back shroud. The at least one pump-out vane is preferably fixed to a second surface of the back shroud opposite the first surface, while the end plate includes a surface adjacent to and facing the first edge of the cutting vanes and at least one internal cutting rib fixed to the end plate surface for shearing operation in combination with the sharpened edge of the cutting vanes of the impeller.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: January 31, 2012
    Assignee: Vaughan Co., Inc.
    Inventors: Glenn Robert Dorsch, Kent Harrison Keeran
  • Patent number: 8025248
    Abstract: The invention is a detachable “blade foil” system for comminuting machines which employ a rotating turbine. The turbine blades are each endowed with a detachable leading edge which is shaped in an air foil configuration. These “blade foils” are penetrated by a vent chamber having an inlet port and an outlet port. The vent chambers aid in drying input material that is processed by a comminuting machine and also aid in reducing sound from the turbine. The configuration of the inventive blade foils also vary to aid in material drying. The configuration of the blade foils also define the level of particle size attributed to the processed output material. Hence by selecting particular blade foil configurations the operator can achieve different levels of material drying and differing output particle sizings.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: September 27, 2011
    Inventors: David J. Nebel, Ernest R. Schmidt
  • Patent number: 7996931
    Abstract: The novel enhanced pool safety device of the present disclosure increases safety around pools and prevents unnecessary drowning. The apparatus is disposed in a pool drain system and had been at least one blade connected to an axle and moved by the suction force provided by the filter system. As water moves from a pool to an intake duct via a drain, the combination of moving water and vacuum force turns blades, which cut foreign materials, such as hair, that comes through the drain grating. The cutting of these materials prevents loss of life that may arise as humans and other objects become entangled in pool drains.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: August 16, 2011
    Inventor: Allison Sage Plette
  • Patent number: 7972108
    Abstract: A turbine for a hydroelectric power plant intended to equip a water stream at the level of a very low head lower than 10 meters, and preferably from 1 to 5 meters, comprising a helix-shaped wheel, the ratio between the kinetic energy of the water flow coming out of the wheel and the potential energy of the head being smaller than 20%.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: July 5, 2011
    Inventor: Jacques Fonkenell
  • Patent number: 7967553
    Abstract: 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: Grant
    Filed: November 11, 2005
    Date of Patent: June 28, 2011
    Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KG
    Inventor: Peter Wagner
  • Patent number: 7963094
    Abstract: In an aircraft turbofan or turbojet engine including a fan blade assembly mounted thereon rotating about the central axis of the engine, there are provided aerodynamically profiled rotating cutting rings arranged concentrically to the engine axis upstream of the fan blade assembly on which a bird traveling toward the engine will fragment to extravasations and evisceration to produce bird debris of a sufficiently low density to be safely ingested by the engine.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: June 21, 2011
    Inventor: Francis J. Cupolo
  • Patent number: 7950974
    Abstract: A device for cutting weeds carried by water inducted into a housing includes an intake, an outlet, an impeller for pumping water from the intake to the outlet as the impeller rotates about an axis, the impeller including a blade formed with a leading edge facing the intake, and a baffle secured against movement and including a cutting edge located adjacent the leading edge when the leading edge rotates to the location of the cutting edge.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: May 31, 2011
    Assignee: Surfango, Inc.
    Inventor: Yuting Rui
  • Patent number: 7927066
    Abstract: A reflecting device that enables to prevent infiltration of particles into a processing chamber. The reflecting device is disposed in a communicating pipe. The communicating pipe allows the processing chamber of a substrate processing apparatus and an exhaust pump to communicate with each other. The exhaust pump has at least one rotary blade. The reflecting device comprises at least one reflecting surface. The at least one reflecting surface is oriented to the exhausting pump.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: April 19, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Tsuyoshi Moriya, Takahiro Murakami, Yoshiyuki Kobayashi, Tetsuji Sato, Eiichi Sugawara, Shosuke Endoh, Masaki Fujimori
  • Publication number: 20110046322
    Abstract: The pump assembly includes an impeller rotatably mounted in a pipe of the reactor having blades that generate a flow of fluid slurry through the pipe, a nosecone protruding in an upstream direction in front of the impeller blades that rotates along with the blades, and a plurality of stationary guide vanes connected to the housing upstream of the impeller blades and having free ends that are radially spaced apart from the nosecone. The leading edges of the stationary vanes are shaped to direct any stringy material into the radial gaps between the free ends of the stationary vanes and the rotating nose cone to be shredded and thus prevent fouling and clogging of the pump assembly when such stringy material is generated during the polymerization process.
    Type: Application
    Filed: July 2, 2010
    Publication date: February 24, 2011
    Inventors: Robert G. DePierri, Norman F. Cook, III
  • Publication number: 20100327096
    Abstract: A grinder includes a generally vertical, rotatable shaft having at least one set of cutter blades driven thereby and a fan assembly mounted on the shaft below the cutter blades in position to receive output therefrom. The fan assembly includes a fan disc secured to the shaft and rotatable therewith. A plurality of fan blades are secured to the fan disc in a generally radial orientation. Each fan blade includes a bottom flange secured to a top surface of the fan disc, a web extending upwardly from the bottom flange and a top flange extending outwardly from the web in a direction of rotation of the fan disc. The fan blades are preferably moveably mounted to the fan disc such that the angle of the fan blades relative to a true radial orientation can be adjusted.
    Type: Application
    Filed: June 29, 2009
    Publication date: December 30, 2010
    Applicant: GREEN MACHINE SHREDDERS, INC.
    Inventor: Kyle T. Watts
  • Publication number: 20100322756
    Abstract: A pump is provided including a cutter plate disposed at a pump inlet including a plurality of holes. Multiple embodiments provide that the pump includes a rotatable cutter blade disposed substantially adjacent to the cutter plate. Embodiments include those wherein the plurality of holes are angled in a direction of rotation of the cutter blade. In some embodiments, the cutter blade has at least one relief hole and at least one cutting edge. Additional embodiments include those wherein a ring extends outward from the pump inlet for channeling material toward the pump inlet in a substantially perpendicular approach with respect to the cutter plate.
    Type: Application
    Filed: March 29, 2010
    Publication date: December 23, 2010
    Inventors: William Schmidt, P.E., Bryan Schilling, Charles Carroll
  • Patent number: 7841826
    Abstract: A grinder pump assembly includes at least one grinder pump stage that has a diffuser and an impeller. The grinder pump assembly also includes a diffuser cap that includes cap contact surfaces. The impeller includes a plurality of upper vanes and lower vanes. The diffuser includes a plurality of lower contact surfaces, a plurality of diffuser vanes and plurality of upper contact surfaces. The upper vanes of the impeller are configured to rotate in proximity with the lower contact surfaces on the diffuser. The lower vanes of the impeller are configured to rotate in proximity with the cap contact surfaces. Multiple grinder pump stages may be used within a single grinder pump assembly.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: November 30, 2010
    Assignee: Wood Group ESP, Inc.
    Inventor: Harold Leon Phillips
  • Patent number: 7841827
    Abstract: A blade set for masserating effluent solids in a sewage pump is composed of a cutter ring and a wheel blade adapted to attach to an effluent water inlet at the lower base. Particularly, the cutter ring has an inner wall and multiple recesses defined on the inner wall to accept enhancing blocks made of tungsten carbide. Correspondingly, the wheel blade has multiple blade strips and each blade strip has a cutout defined at edge to combine with an enhancing corner also made of tungsten carbide. By having the structure made of tungsten carbide, the cutter ring and the wheel blade has excellent wearing resistance and less abrasion loss to keep the operational efficiency to masserate the effluent solids and to extend the lifespan of the sewage pump.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: November 30, 2010
    Inventor: Robert M. Keener
  • Patent number: 7811051
    Abstract: 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: Grant
    Filed: February 16, 2006
    Date of Patent: October 12, 2010
    Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KG
    Inventor: Peter Wagner