Patents by Inventor Steen Mikkelsen

Steen Mikkelsen 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).

  • Publication number: 20250052245
    Abstract: An integrated electric motor drive. The motor drive having rotatable parts with a drive shaft and a rotor, wherein the drive shaft extends along a rotor axis and the rotor is mechanically coupled to the drive shaft; and static parts having a stator and power electronics for controlling an electric current through the stator. The integrated electric motor drive has a liquid cooling system with a closed liquid cooling circuit and a liquid coolant agitator. The closed liquid cooling circuit is filled with liquid coolant being in thermal contact with the stator and/or the power electronics. The liquid coolant agitator is arranged and configured to circulate the liquid coolant along the closed liquid cooling circuit. The liquid coolant agitator is mounted within the closed liquid cooling circuit to be rotatable about the rotor axis, and the liquid coolant agitator is magnetically coupled to the movable parts.
    Type: Application
    Filed: December 2, 2022
    Publication date: February 13, 2025
    Inventors: Steen MIKKELSEN, Troels JEPSEN, Keld Folsach RASMUSSEN, Kristian CHRISTOFFERSEN
  • Publication number: 20250052246
    Abstract: A pump assembly includes an electric drive motor with a motor drive shaft and a rotor. The motor drive shaft extends along a rotor axis and the rotor is mechanically coupled to the motor drive shaft. A pump housing encloses an impeller that is mechanically coupled to a pump drive shaft. The pump drive shaft extends along the rotor axis. The motor drive shaft is releasably coupled to the pump drive shaft by a drive shaft coupling for transferring torque from the motor drive shaft to the pump drive shaft. The drive shaft coupling is arranged within the motor drive shaft for transferring torque from the motor drive shaft to the pump drive shaft by frictional connection. The drive shaft coupling is accessible by an elongate tool through the second axial hollow motor drive shaft drive end for selectively tightening and releasing the drive shaft coupling.
    Type: Application
    Filed: December 2, 2022
    Publication date: February 13, 2025
    Inventors: Steen MIKKELSEN, Troels JEPSEN, Brian LUNDSTED POULSEN
  • Patent number: 12005524
    Abstract: A cutting apparatus comprising a cutting table and a first cutting material belt movably supported about the cutting table about a first roller and a second roller. A second cutting material belt is removably supported above the first cutting material belt about the first roller and a third roller, wherein the second roller is intermediate the first roller and the second roller.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 11, 2024
    Assignee: GERBER TECHNOLOGY LLC
    Inventors: Nikolai Mikkelsen, Steen Mikkelsen
  • Patent number: 11923750
    Abstract: An electric pump drive motor three-phase stator assembly (1) includes three sets of stator segments (Si,j), configured in a ring about a stator axis (R). Each set includes n?2 stator segments arranged in an n-fold rotational symmetry about the stator axis. Each stator segment includes a coil (3) having a first coil wire end and a second coil wire end. A plurality of 3n?3 connection wires (Wi,k) connect coils of a respective set of stator segments in series. A first and a second interposed stator segment are arranged in circumferential direction between the two connected coils of the respective set of stator segments. 3n?5 of the connection wires span across the first interposed stator segment at a distance (r1) to the stator axis and across the second interposed stator segment at a second distance (r2) to the stator axis (R). The second distance is larger than the first distance.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: March 5, 2024
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Steen Mikkelsen, Keld Folsach Rasmussen
  • Publication number: 20230299646
    Abstract: A pump motor (1) includes a rotor (2) mounted to a drive shaft (3) extending along a rotor axis (L). The rotor (2) is circumferentially embraced by a stator. A stator housing (5), encloses the stator. The stator housing includes a first axial end and a second axial end. Electronics for powering and controlling the motor operation include a first portion, arranged on a first PCB, and a second portion, arranged on a second PCB (51). A first electronics housing (11) accommodates the first PCB. The first electronics housing (11) is arranged at a perimeter of the stator housing (5). A second electronics housing (47) accommodates the second PCB (51). The second electronics housing (47) is arranged at the second axial end of the stator housing (5). The second electronics housing (47) at least partially rings the drive shaft (3).
    Type: Application
    Filed: July 17, 2021
    Publication date: September 21, 2023
    Inventors: Mikkel HAUGAARD, Steen MIKKELSEN
  • Publication number: 20230271275
    Abstract: A cutting apparatus comprising a cutting table and a first cutting material belt movably supported about the cutting table about a first roller and a second roller. A second cutting material belt is removably supported above the first cutting material belt about the first roller and a third roller, wherein the second roller is intermediate the first roller and the second roller.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 31, 2023
    Inventors: Nikolai Mikkelsen, Steen Mikkelsen
  • Publication number: 20220200397
    Abstract: An electric pump drive motor three-phase stator assembly (1) includes three sets of stator segments (Si,j), configured in a ring about a stator axis (R). Each set includes n?2 stator segments arranged in an n-fold rotational symmetry about the stator axis. Each stator segment includes a coil (3) having a first coil wire end and a second coil wire end. A plurality of 3n?3 connection wires (Wi,k) connect coils of a respective set of stator segments in series. A first and a second interposed stator segment are arranged in circumferential direction between the two connected coils of the respective set of stator segments. 3n?5 of the connection wires span across the first interposed stator segment at a distance (r1) to the stator axis and across the second interposed stator segment at a second distance (r2) to the stator axis (R). The second distance is larger than the first distance.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 23, 2022
    Inventors: Steen MIKKELSEN, Keld Folsach RASMUSSEN
  • Patent number: 11293559
    Abstract: A valve system (13), connectable to a pump system (1), includes a pump assembly (3) connectable to a pipe (5), wherein the valve system (13) includes a valve (15) including a pipe section (39), of the pipe (5), that defines a primary flow direction (19), and a valve opening (41) in the pipe section, a valve seat (43) and a valve body (45). The valve opening (41), the valve seat (43) and the valve body (45) define a common valve axis (47) extending transversely to the primary flow direction. An operating element (49), arranged at the pipe section opposite the valve opening, is configured to control the valve body for operating in a check-valve mode to open the valve opening upon a fluid flow from the valve opening towards the valve body and for operating in a shut off-valve to close the valve opening for any fluid flow direction.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: April 5, 2022
    Assignee: GRUNDFOS HOLDING A/S
    Inventor: Steen Mikkelsen
  • Patent number: 11173572
    Abstract: A cutting system including a cutting table and a first cutting material belt movably supported about the cutting table and a second cutting material removably supported above the first cutting material, the laser cutting material having a metal material having a plurality of apertures extending therethrough.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: November 16, 2021
    Assignee: GERBER TECHNOLOGY LLC
    Inventors: Nikolai Mikkelsen, Steen Mikkelsen
  • Publication number: 20210080018
    Abstract: A valve system (13), connectable to a pump system (1), includes a pump assembly (3) connectable to a pipe (5), wherein the valve system (13) includes a valve (15) including a pipe section (39), of the pipe (5), that defines a primary flow direction (19), and a valve opening (41) in the pipe section, a valve seat (43) and a valve body (45). The valve opening (41), the valve seat (43) and the valve body (45) define a common valve axis (47) extending transversely to the primary flow direction. An operating element (49), arranged at the pipe section opposite the valve opening, is configured to control the valve body for operating in a check-valve mode to open the valve opening upon a fluid flow from the valve opening towards the valve body and for operating in a shut off-valve to close the valve opening for any fluid flow direction.
    Type: Application
    Filed: September 11, 2020
    Publication date: March 18, 2021
    Inventor: Steen MIKKELSEN
  • Patent number: 10948375
    Abstract: A pump seal leakage detection system (8) includes a leakage piping (13) including a collector pipe (21) and an air stream pipe (23), a sensor (15) positioned at the air stream pipe (23), and an air displacement device (17) for driving an air stream through the air stream pipe (23). The collector pipe (21) includes an inlet port (25) that is connectable to a leakage centrifuge (5), and an outlet port (27) into the air stream pipe (23). The sensor (15) is configured to detect a leakage drop at the outlet port (27) of the collector pipe (21) or in the air stream pipe (23). The air displacement device (17) is configured to blow a leakage drop off the outlet port (27) of the collector pipe (21) by an air stream towards an outlet port (35) of the air stream pipe (23).
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: March 16, 2021
    Assignee: GRUNDFOS HOLDING A/S
    Inventor: Steen Mikkelsen
  • Patent number: 10900495
    Abstract: The invention relates to a multistage pump (1), including a pump body (4), at a lower end of which a base element (2) is arranged, and at an upper end of which a head element (3) is arranged. At least the base element (2) is made from sheet steel and has an inlet port (5) and an outlet port (16). The inlet port (5) and the outlet port (16) are mechanically connected to each other by a pipe (6) running through the base element (2).
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: January 26, 2021
    Assignee: GRUNDFOS HOLDING A/S
    Inventor: Steen Mikkelsen
  • Patent number: 10808703
    Abstract: A multistage centrifugal pump has a foot part (2) and a head part (9), between which pump stages are integrated. The head part (9) and the foot part (2) are connected via tie-rods (11) which with one end are fastened on the head part (9) and with the other end are fastened on the foot part (2). The tie-rods (11) at one end comprise a thread (14), with which they are tightened on the head part (9). The tie-rods (11) are formed from sheet metal. At the end opposite the thread, the tie-rods include a recess, with which recess the tie-rods are each positively fixed on the foot part (2), at least in the tensile direction (22).
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: October 20, 2020
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Steen Mikkelsen, Niels Due Jensen, Brian Lundsted Poulsen
  • Patent number: 10502214
    Abstract: A centrifugal pump (1) includes several pump stages, which are arranged axially between a head part (4) and a foot part (2). The pump stages are surrounded peripherally by an outer casing (3). An axial end of the outer casing (3) is fastened on the head part (4), and the other axial end on the foot part (2). A mechanical connection between the head part (4) and the foot part (2) is formed by the outer casing (3).
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: December 10, 2019
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Steen Mikkelsen, Brian Lundsted Poulsen, Jens Andersen Gad
  • Patent number: 10302310
    Abstract: A hydraulic heating and/or cooling system hydraulic manifold is constructed in a modular manner with a main module (2). At least one load module (4) is connectable to the main module (2) and includes a hydraulic connection (22, 24) for a load circuit, and a closed-loop control device (26, 28) controlling flow through the load and for connection to an identically configured further load module (4). The at least one load module (4) includes a circuit board (44) which extends between a first (34) and a second axial end (36) of the load module (4) and which at its first (34) and second end (36) have electrical couplings (50, 52) which correspond to one another. The electrical coupling (52) at the second end (36) of the circuit board (44) can electrically conductively engage with an electrical coupling (50) at the first end (34) of the further identical load module (4).
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: May 28, 2019
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Søren Emil Sørensen, Per Hovmand, Steen Mikkelsen, Jens Kjær Milthers, Kim Hulegaard Jensen
  • Publication number: 20190105737
    Abstract: A cutting apparatus comprising a cutting table and a first cutting material belt movably supported about the cutting table about a first roller and a second roller. A second cutting material belt is removably supported above the first cutting material belt about the first roller and a third roller, wherein the second roller is intermediate the first roller and the second roller.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 11, 2019
    Applicant: MCT of Wisconsin, Inc.
    Inventors: Nikolai Mikkelsen, Steen Mikkelsen
  • Patent number: 10247202
    Abstract: A centrifugal pump (1) includes at least one pump stage (2) and a first housing part (3) having a suction connection (5). A second housing part (6) has a pressure connection (7). At least one intermediate housing part (10) at least in sections delimits a channel (11) leading to a pressure side of the at least one pump stage (2). The pump further includes a third housing part (20). The second housing part (6) and the at least one intermediate housing part (10) are arranged between the first and the third housing part (3, 20). The at least one intermediate housing part (10) and the second housing part (6) are configured to be arranged in at least two different positions with respect to the first and the third housing (3, 20).
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 2, 2019
    Assignee: Grundfos Holding a/s
    Inventor: Steen Mikkelsen
  • Publication number: 20190086286
    Abstract: A pump seal leakage detection system (8) includes a leakage piping (13) including a collector pipe (21) and an air stream pipe (23), a sensor (15) positioned at the air stream pipe (23), and an air displacement device (17) for driving an air stream through the air stream pipe (23). The collector pipe (21) includes an inlet port (25) that is connectable to a leakage centrifuge (5), and an outlet port (27) into the air stream pipe (23). The sensor (15) is configured to detect a leakage drop at the outlet port (27) of the collector pipe (21) or in the air stream pipe (23). The air displacement device (17) is configured to blow a leakage drop off the outlet port (27) of the collector pipe (21) by an air stream towards an outlet port (35) of the air stream pipe (23).
    Type: Application
    Filed: September 19, 2018
    Publication date: March 21, 2019
    Inventor: Steen MIKKELSEN
  • Publication number: 20180363659
    Abstract: A multistage centrifugal pump with a foot part (2) and with a head part (9), between which pump stages are integrated. The head part (9) and the foot part (2) are connected via tie-rods (11) which with one end are fastened on the head part (9) and with the other end are fastened on the foot part (2). The tie-rods (11) at one end comprise a thread (14), with which they are tightened on the head part (9).
    Type: Application
    Filed: December 7, 2016
    Publication date: December 20, 2018
    Inventors: Steen MIKKELSEN, Niels DUE JENSEN, Brian LUNDSTED POULSEN
  • Patent number: D884744
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: May 19, 2020
    Assignee: GRUNDFOS HOLDING A/S
    Inventors: Niels Due Jensen, Steen Mikkelsen