Patents Examined by Joseph S. Herrmann
  • Patent number: 10931218
    Abstract: A vacuum pump drive comprising at least one electric motor which is connected to the rotor of a vacuum pump via a drive shaft, a frequency converter which is electrically connected to the motor and which supplies a motor input voltage to the motor, and a switchover device with at least one electric switch. The switchover device is designed to connect the motor windings in a star or delta shape depending on the switching position of the switch in order to change the motor characteristic curve. The vacuum pump drive also comprises a measuring device with sensors for detecting physical operating variables of the vacuum pump and a controller which is electrically or optically connected to the switchover device and the measuring device and which is designed to actuate the at least one switch on the basis of the measured value of the operating variable of the vacuum pump in order to produce the star-delta switchover.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: February 23, 2021
    Assignee: LEYBOLD GMBH
    Inventor: Sebastian Walzel
  • Patent number: 10920758
    Abstract: A compressor includes a stationary housing disposed about a central axis and having a radially inner surface defining a plurality of circumferentially spaced cavities opening into an interior space of the housing. The compressor further includes a plurality of fluid volume control members, each of which is disposed within one of the plurality of cavities and defines a fluid chamber within the cavity sealed relative to the interior space. An eccentric shaft is disposed within the interior space of the housing and configured for rotation about the central axis. A hypocycloid rotor is disposed within the interior space of the housing and supported on the eccentric shaft. The rotor defines a plurality of lobes configured for movement into and out of each cavity responsive to rotation of the shaft to displace the fluid volume control member in each cavity and adjust a volume of each fluid chamber.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: February 16, 2021
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventor: David D. Colavincenzo
  • Patent number: 10907627
    Abstract: Systems and methods are disclosed of an engine driven power system that includes a permanent magnet generator electrically connected to an energy storage device. An air compressor is coupled to the permanent magnet generator via a clutch. A controller provides power from the energy storage device to the permanent magnet generator to turn the permanent magnet generator to drive the air compressor via the clutch to increase an air pressure level.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: February 2, 2021
    Assignee: Illinois Tool Works Inc.
    Inventor: Jeffery R. Ihde
  • Patent number: 10890171
    Abstract: A pump (1) includes a vibrating plate (15) that has a central part (21), a frame part (22), and connecting parts (23 to 26), a piezoelectric element (16) that is stacked over the central part (21) and configured to cause flexural vibrations to occur concentrically from the central part (21) to the connecting parts (23 to 26), and an opposed plate (13) that is stacked over the frame part (22) and positioned facing each of the connecting parts (23 to 26) with a spacing therebetween. The vibrating plate (15) has such a resonant mode that an antinode occurs in each of the central part (21) and the connecting parts (23 to 26). The opposed plate (13) has, at positions facing the connecting parts (23 to 26), a plurality of channel holes (39 to 43) through which a fluid flows.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: January 12, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Atsuhiko Hirata, Yukiharu Kodama
  • Patent number: 10883486
    Abstract: The present invention relates to a microfluidic pump for generating forced traveling waves that can directly drive liquid. A surface traveling wave-driven microfluidic pump comprises a channel with two opposing channel walls. Two symmetric traveling waves are generated on the surface of two opposite channel walls. The channel contains liquid that becomes trapped inside the cavities and is pumped along the direction of the traveling wave at the same speed as the traveling wave.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: January 5, 2021
    Inventors: Huilin Zhou, Weixing Lu
  • Patent number: 10876768
    Abstract: A screw compressor for a heating, ventilation, and air conditioning (HVAC) system. The screw compressor includes a housing having an inlet end and an outlet end for refrigerant to pass into and out of the housing. A motor is within the housing. A plurality of screw sets are arranged about the motor. The screw sets receive refrigerant entering through the inlet, compress the refrigerant between meshed rotors of the plurality of screw sets, and direct refrigerant out of the housing through the outlet end of the housing.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 29, 2020
    Assignee: DENSO International America, Inc.
    Inventor: Sean Schoneboom
  • Patent number: 10876543
    Abstract: A cover (1) for centrifugal pump comprising a heating element (8) which has a heating stretch (10) and two end stretches (12) connected to the heating stretch (10), in which the heating element (8) crosses the cover (1) so that the heating stretch (10) is below the cover (1) and the two end stretches (12) are above the cover (1), and wherein at least one first portion (14) of the heating stretch (10) is in contact with the cover (1), and wherein at least one second portion (16) of the heating stretch (10) is spaced apart from the inner face (4).
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: December 29, 2020
    Assignee: I.R.C.A. S.P.A. INDUSTRIA RESISTENZE CORAZZATE E AFFINI
    Inventors: Federico Zoppas, Maurizio Biasi, Damiano Montagner, Stefano Zanella
  • Patent number: 10871155
    Abstract: A gas transportation device is provided and includes a first flow guiding unit and a second flow guiding unit, each of which includes an inlet and an outlet. While the first flow guiding unit and the second flow guiding unit are actuated, gas is inhaled through the respective inlets and discharged out through the respective outlets. A gas-collection chamber is disposed between the first flow guiding unit and the second flow guiding unit and includes a discharging opening. The gas is inhaled through the inlets of the first flow guiding unit and the second flow guiding unit, and transported to the gas-collection chamber through the outlets thereof. The gas in the gas-collection chamber is discharged out through the outlets of the first flow guiding unit and the second flow guiding unit, to achieve an adjustment of gas transportation amount.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: December 22, 2020
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Chi-Feng Huang, Wei-Ming Lee, Yung-Lung Han, Chang-Yen Tsai
  • Patent number: 10865794
    Abstract: An electric motor assembly for pumping a fluid through a fluid cavity includes a stator assembly including a plurality of conduction coils configured to transmit heat energy to the fluid within the fluid cavity and a rotor assembly positioned adjacent the stator assembly to define an axial gap therebetween. The stator assembly is configured to impart a first axial force on the rotor assembly. The electric motor assembly also includes an impeller directly coupled to the rotor assembly opposite the stator assembly such that the rotor assembly and the impeller are configured to rotate about an axis. A fluid channeled by the impeller imparts a second axial force on the impeller. The rotor assembly and the impeller are configured to be submerged in the fluid within the fluid cavity.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 15, 2020
    Assignees: REGAL BELOIT AUSTRALIA PTY LTD, REGAL BELOIT AMERICA, INC.
    Inventors: Matthew J. Turner, Greg Heins, Mark Thiele, Jason Jon Kreidler
  • Patent number: 10859090
    Abstract: A water pump includes: an upper housing formed with an inlet and an outlet of fluid; a lower housing installed to fit in a lower side of the upper housing, having a receiving space formed therein; a shaft fixing support having a lower part of a protrudedly formed shaft inserted in the center of a bottom part of the lower housing; an impeller installed around the shaft; a rotor configured by having a magnet installed around a rotor core; a stator installed inside the lower housing; a lower cover; a shaft upper part fixing support member installed in an upper side of the shaft erectedly inserted in the shaft fixing support; and a synthetic resin mold member formed with a first synthetic resin mold around an outer side of the shaft fixing support and around the shaft, and a second synthetic resin mold around an outer side of the rotor.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: December 8, 2020
    Assignee: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol Jang, Ji Min Lee, Seong Jin Lee
  • Patent number: 10844857
    Abstract: A compressor system includes a compressor having a rotor; a bearing supporting the rotor, wherein the bearing is disposed in a bearing cavity; and wherein the bearing has a near frictionless coating; and a purge gas system in fluid communication with the bearing cavity and constructed to purge air from the bearing cavity and supply the bearing cavity with the purge gas during operation of the compressor. The purge gas can be nitrogen and the near frictionless coating can be a near-frictionless diamond-like carbon coating.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: November 24, 2020
    Assignee: Ingersoll-Rand Industrial U.S., Inc.
    Inventor: James Christopher Collins
  • Patent number: 10837449
    Abstract: A vacuum pump comprises: a base; a rotor shaft rotatably provided at the base; a rotor including rotor blades arranged in multiple stages and a rotor cylindrical portion, and attached to the rotor shaft; stationary blades each arranged between adjacent ones of the rotor blades, the stationary blades and the rotor blades forming a turbo exhaust portion; a stator forming, together with the rotor cylindrical portion, a screw groove exhaust portion; and a hexagon socket head cap screw configured to fix the stator to an upper surface of the base in a guiding path of the screw groove exhaust portion to which gas is guided from the turbo exhaust portion. The hexagon socket head cap screw is a bolt having a smaller height of a head portion than that of a hexagon socket head cap screw according to a provision of a country of use or an international organization.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: November 17, 2020
    Assignee: SHIMADZU CORPORATION
    Inventor: Satoshi Kuno
  • Patent number: 10837446
    Abstract: A vacuum pump system includes an air-cooled, O-ring sealed vacuum pump and an oil management system with an LED illuminated clear tank for observation of the oil condition as well as a large oil inlet and outlet for rapid and safe oil changes while the pump is operating. The oil management system is also configured to prevent oil from the sump from being drawn into an evacuated AC/R system when the pump is stopped and the intake ports are not sealed from the high vacuum AC/R system. The oil management system includes a preferential vacuum relief system that allows air instead of the oil from the sump to be drawn back into the evacuated lines.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: November 17, 2020
    Inventor: Tinggui Hong
  • Patent number: 10830252
    Abstract: An electric motor assembly for pumping a fluid through a fluid cavity includes a stator assembly including a plurality of conduction coils configured to transmit heat energy to the fluid within the fluid cavity. The electric motor assembly also includes a rotor assembly positioned adjacent the stator assembly to define an axial gap therebetween. The electric motor assembly also includes an impeller directly coupled to the rotor assembly opposite the stator assembly such that the rotor assembly and the impeller are configured to rotate about an axis. The rotor assembly and the impeller are configured to be submerged in the fluid within the fluid cavity.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: November 10, 2020
    Assignees: REGAL BELOIT AUSTRALIA PTY LTD, REGAL BELOIT AMERICA, INC.
    Inventors: Matthew J. Turner, Greg Heins, Mark Thiele, Jason Jon Kreidler
  • Patent number: 10830029
    Abstract: The application is directed to a system and method for hydraulic fluid delivery including the delivery of high pressure fluid in hydraulic fracturing operations. The system of this application is operationally configured to reduce the footprint at a well site and, in one aspect, includes a towable platform carrying a power sub-assembly, a pump sub-assembly and a cooler sub-assembly each of which is releasably attachable to the platform. Each sub-assembly may be removed from the platform without disturbing the relationship between the platform and the remaining sub-assemblies attached thereto.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 10, 2020
    Assignee: MGB OILFIELD SOLUTIONS, LLC
    Inventor: Mark Daniel Bishop
  • Patent number: 10815981
    Abstract: A variable pressure air pump includes a first cylinder and a second cylinder movable relative to the first cylinder along a longitudinal axis. An air tube is mounted in the first and second cylinders. A mounting portion is integrally formed on a first end of the air tube. A first piston and a second piston compress air in the first and second cylinders. A connecting device is mounted to the first cylinder for coupling with an object to be inflated. An air escape device selectively seals a second chamber of the second cylinder to selectively compress the air in the second cylinder. A first check valve is mounted to the mounting portion of the air tube. A second check valve is mounted to the second piston.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: October 27, 2020
    Inventor: Scott Wu
  • Patent number: 10788043
    Abstract: The present invention relates to a blower fan, comprising two side walls, an air duct, a handle, a motor, a wind wheel and a motor control assembly; the two side walls are arranged in parallel with each other; the air duct is arranged between the two side walls in a rotatable way; the handle is mounted on the air duct; the motor and the wind wheel are both mounted in the air duct; the motor control assembly is arranged on a side wall close to the motor and is electrically connected with the motor, installation position of the motor control assembly with respect to the side wall being at an inner side of the side wall. According to the present invention, the air blowing angle is adjustable due to the rotation of the air duct, achieving a better drying effect. Additionally, the structure of the present invention is compact, attractive in appearance and durable.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: September 29, 2020
    Assignee: JIANGMEN KEYE ELECTRIC APPLIANCES MANUFACTURING CO., LTD
    Inventors: Xiangming He, Guanglian Lin
  • Patent number: 10746179
    Abstract: A fan device is provided, including a housing, a circuit board, a plurality of driving coils, at least one magnetic member, and a metal member. The housing includes a first surface, a second surface corresponding to the first surface, and a hollow protruding portion protruding from the first surface. The circuit board is disposed on the first surface, and the driving coils are disposed on the circuit board. The magnetic member is disposed corresponding to the driving coils. The metal member is disposed on the second surface and corresponds to the magnetic member. A method for manufacturing the fan device is also provided.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: August 18, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventor: Chao-Wen Lu
  • Patent number: 10731649
    Abstract: A compressor or vacuum pump including: —a casing having a cooling gas inlet and a cooling gas outlet for allowing a cooling gas to flow therethrough; —a fan mounted at the cooling gas inlet, including a fan housing and configured to blow said cooling gas into said casing; —a compression or vacuum chamber including a first housing, a process gas inlet and outlet for allowing a process gas to flow therethrough and at least one rotating element; —a driving module including a second housing and at least one bearing for supporting said at least one rotating element; —a silencer including a cover and configured to attenuate noise generated by the compressor or vacuum pump. The silencer includes a recess structure on its cover, configured to deflect the cooling gas flow from the fan towards the driving module.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: August 4, 2020
    Assignee: ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP
    Inventors: Alberto Di Sante, William Maria Jacobs, Koen Stoop, Luc Van Mieghem, Tom Andre J. Potters
  • Patent number: 10731653
    Abstract: An electric motor assembly includes a bearing assembly including a rotating component and at least one stationary component. The electric motor assembly also includes an impeller coupled to the rotating component. The impeller includes an inlet and an outlet and is configured to direct a fluid between the inlet and the outlet. The electric motor assembly also includes a rotor assembly directly coupled to the impeller. A fluid flow channel is defined between the rotating component and the at least one stationary component. The flow channel includes a first end proximate the impeller outlet and a second end proximate the impeller inlet.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: August 4, 2020
    Assignees: REGAL BELOIT AUSTRALIA PTY LTD, REGAL BELOIT AMERICA, INC.
    Inventors: Matthew J. Turner, Greg Heins, Mark Thiele, Jason Jon Kreidler