公开(公告)号：US09945365B2

公开(公告)日：2018-04-17

申请号：US14254057

申请日：2014-04-16

Applicant: BJ Services, LLC

Inventor： Jennifer Hernandez ,  Bruce A. Vicknair ,  Blake C. Burnette

IPC: F04B17/03 ,  F04B47/02 ,  E21B43/26

CPC classification number: F04B17/03 ,  E21B43/26 ,  F04B47/02

Abstract: An apparatus configured to hydraulically fracture an earth formation, includes a pump configured to hydraulically fracture the earth formation by pumping a fracturing liquid into a borehole penetrating the earth formation and an electric motor having a rotor coupled to the pump and a stator. A motor control center is configured to apply an alternating electrical voltage having a fixed-frequency to the stator in order to power the electric motor, wherein the apparatus and motor control center do not have a variable frequency drive.

公开(公告)号：US09938970B2

公开(公告)日：2018-04-10

申请号：US14680667

申请日：2015-04-07

Applicant: Fluid Handling LLC.

Inventor： Andrew A. Cheng ,  James J. Gu ,  Graham A. Scott

IPC: F04B51/00 ,  F04B17/03 ,  F04B49/06 ,  F04B49/10 ,  F04D15/00 ,  F15B19/00 ,  F16K37/00 ,  G01L5/00

CPC classification number: F04B51/00 ,  F04B17/03 ,  F04B49/065 ,  F04B49/103 ,  F04B49/106 ,  F04D15/0088 ,  F15B19/00 ,  F16K37/0075 ,  G01L5/0061

Abstract: The present invention provides apparatus, including a hydronic sensorless pumping system, that features a signal processor or processing module configured to receive signaling containing information about motor readout values of power and speed, and also about pump and system characteristics equations together with empirical power equations that are constructed by a polynomial best-fit function together with pump affinity laws based upon a pump curve published by a pump manufacturer; and determine corresponding signaling containing information about a pump or system pressure and a flow rate at the motor readout values of power and speed, based upon the signaling received.

公开(公告)号：US09920597B2

公开(公告)日：2018-03-20

申请号：US15320463

申请日：2015-01-30

Applicant: Aker Solutions AS

Inventor： Gunder Homstvedt ,  Martin Pedersen ,  Rikhard Bjørgum

IPC: E21B43/01 ,  E21B34/06 ,  E21B43/12

CPC classification number: E21B43/01 ,  E21B34/066 ,  E21B43/128 ,  F04B17/03 ,  F04B47/06 ,  F04D13/086 ,  F04D25/0686

Abstract: A system for subsea pumping or compressing includes an ESP (electrical submersible pump), a flowline jumper, a connector part in either end of the flowline jumper, and a truss structure or longitudinal rib-arrangement that acts as a stiffening arrangement. The ESP may be arranged in the flowline jumper which may be orientated in a substantially horizontal direction. The stiffening arrangement may function to ensure that the ESP shaft is straight at all times during lifting, installation and operation. The system may also include a load limiting arrangement for limiting or eliminating the load on structure and seabed supporting the system.

公开(公告)号：US09914141B2

公开(公告)日：2018-03-13

申请号：US15442162

申请日：2017-02-24

Applicant: Graco Minnesota Inc.

Inventor： David J. Thompson ,  Jerry D. Horning ,  William M. Blenkush ,  Eric J. Finstad ,  Bradley H. Hines ,  Marius J. Luczak ,  Diane Olson ,  Philip K. Snider ,  Harold D. Johnson ,  Jimmy Wing Sum Tam

IPC: B05B9/01 ,  B05B9/04 ,  F04B1/02 ,  F04B1/14 ,  F04B9/04 ,  F04B17/03 ,  B05B9/08 ,  F04B53/16 ,  F04B23/02

CPC classification number: B05B9/0413 ,  B05B9/01 ,  B05B9/0416 ,  B05B9/043 ,  B05B9/0861 ,  B05B9/0866 ,  B05B9/0888 ,  B05B9/0894 ,  F04B1/02 ,  F04B1/14 ,  F04B1/145 ,  F04B9/045 ,  F04B17/03 ,  F04B17/06 ,  F04B23/02 ,  F04B53/16

Abstract: A fluid dispensing device comprises a housing body, a fluid container, a reciprocating piston fluid pump, a primary drive element and a spray tip. The housing body is configured to be carried and supported by an operator of the hand held airless fluid dispensing device during operation. The fluid container is supported by the housing body. The reciprocating piston fluid pump is coupled to the housing body and comprises at least two pumping chambers configured to be actuated out of phase by at least one piston. The primary drive element is coupled to the housing body and connected to the reciprocating piston fluid pump to actuate the at least one piston. The spray tip is connected to an outlet of at least one of the pumping chambers.

公开(公告)号：US09913499B1

公开(公告)日：2018-03-13

申请号：US15483296

申请日：2017-04-10

Applicant: Larry Holtzman

Inventor： Larry Holtzman

IPC: A41D1/08 ,  A41D13/015 ,  F04B9/14 ,  F04B17/03 ,  F04B43/02

CPC classification number: A41D1/084 ,  A41D1/08 ,  A41D13/0155 ,  A61F13/069 ,  F04B9/14 ,  F04B17/03 ,  F04B43/02

Abstract: A bicycle shorts system includes a bicycle shorts having a waist section configured to fit around a waist area of the user; a first leg section and a second leg section integral with and secured to the waist section; and a padded area having a material extending from the first leg section to the second leg section, the padded area forming a cavity. The system further includes a liquid filling assembly having a first liquid chamber carried by the first leg section; and a second liquid chamber carried by the second leg section. The method includes filling the first liquid chamber and the second liquid chamber.

公开(公告)号：US20180050585A1

公开(公告)日：2018-02-22

申请号：US15633005

申请日：2017-06-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tsuyoshi SEIKE

IPC: B60K11/02 ,  B60K11/06 ,  F04B17/03 ,  F04D13/02

CPC classification number: B60K11/02 ,  B60K11/06 ,  F01P11/02 ,  F01P11/029 ,  F04B9/045 ,  F04B17/03 ,  F04B17/05 ,  F04B49/065 ,  F04D13/02

Abstract: The interior of the first reservoir is open to the atmospheric air. A first liquid retaining portion and a first air retaining portion are provided in the first reservoir. The interior of the second reservoir is sealed. A second liquid retaining portion and a second air retaining portion are provided in the second reservoir. A communicating portion allows communication between the second air retaining portion and the first liquid retaining portion. The opening of the communicating portion in the first liquid retaining portion is located lower than a minimum water level of the first liquid retaining portion. The opening of the communicating portion in the second air retaining portion is located higher than a maximum water level of the first liquid retaining portion.

公开(公告)号：US09893500B2

公开(公告)日：2018-02-13

申请号：US15487694

申请日：2017-04-14

Applicant: US Well Services LLC

Inventor： Jared Oehring ,  Brandon N. Hinderliter

IPC: E21B43/26 ,  H02J11/00 ,  H02B13/00 ,  H02B7/06 ,  E21B41/00 ,  F04B17/03 ,  F04B23/04 ,  F04B35/04 ,  F04B47/02 ,  F04B49/20 ,  F02C3/22

CPC classification number: H02B7/06 ,  E21B41/00 ,  E21B43/26 ,  F02C3/22 ,  F04B17/03 ,  F04B23/04 ,  F04B35/04 ,  F04B47/02 ,  F04B49/20

Abstract: A hydraulic fracturing system for fracturing a subterranean formation is disclosed. In an embodiment, the system may include a plurality of electric pumps fluidly connected to a well associated with the subterranean formation and powered by at least one electric motor, and configured to pump fluid into a wellbore associated with the well at a high pressure so that the fluid passes from the wellbore into the subterranean formation and fractures the subterranean formation; at least one generator electrically coupled to the plurality of electric pumps so as to generate electricity for use by the plurality of electric pumps; and at least one switchgear electrically coupled to the at least one generator and configured to distribute an electrical load between the plurality of electric pumps and the at least one generator.

公开(公告)号：US20180010593A1

公开(公告)日：2018-01-11

申请号：US15610023

申请日：2017-05-31

Applicant: MAT INDUSTRIES, LLC.

Inventor： Mark W. WOOD ,  James P. NICHOLS, JR. ,  Kurt R. BECKMAN ,  Thomas B. SHARP

IPC: F04B39/12 ,  F04B53/06 ,  F04B39/00

CPC classification number: F04B39/128 ,  F04B1/053 ,  F04B1/0538 ,  F04B17/03 ,  F04B39/0094 ,  F04B39/02 ,  F04B53/06

Abstract: An air compressor pump is provided, including a crankcase with an opening and a crankshaft extending out of the opening; a cover disposed over the opening in the crankcase; and a condensing chamber formed between the crankcase and the cover.

公开(公告)号：US09861741B2

公开(公告)日：2018-01-09

申请号：US14907086

申请日：2014-03-25

Applicant: MEDTRUM TECHNOLOGIES INC.

Inventor： Cuijun Yang

IPC: A61M5/145 ,  A61M5/142 ,  A61M5/44 ,  F04B17/03 ,  F04B19/22 ,  F04B23/02 ,  F04B53/14 ,  F04B53/16 ,  A61M5/172

CPC classification number: A61M5/1452 ,  A61M5/14248 ,  A61M5/44 ,  A61M2005/14252 ,  A61M2005/14268 ,  A61M2005/1726 ,  A61M2205/3569 ,  A61M2205/36 ,  A61M2205/3653 ,  A61M2205/6054 ,  F04B17/03 ,  F04B19/22 ,  F04B23/02 ,  F04B53/144 ,  F04B53/16

Abstract: A tubeless fluid delivery device, comprising a controller (11) and a pump (12) combined with the controller (11). The controller (11) comprises a first housing having a first built-in circuit. The first housing is provided with a first engagement portion and a first insertion portion electrically connected to the first built-in circuit. The pump (12) comprises a second housing having a second built-in circuit, a drug storage cylinder, a piston, a push rod, a driving means and a battery. The second housing is provided with a second engagement portion correspondingly engaged with the first engagement portion and a second insertion portion electrically connected to the second built-in circuit. The second insertion portion is correspondingly inserted in the first insertion portion to realize electrical connection. The present disclosure solves the problem that a drug fluid infusion device in the prior art has complex operation, large size and high cost.

公开(公告)号：US20170356461A1

公开(公告)日：2017-12-14

申请号：US15608446

申请日：2017-05-30

Applicant: Nidec Corporation

Inventor： Yuko Hino ,  Seung-Sin Yoo ,  Tomoyuki Tsukamoto ,  Akihiko Makita

IPC: F04D29/62 ,  F04D29/08 ,  F04D25/06 ,  F04B35/04 ,  F04B17/00

CPC classification number: F04D29/626 ,  F04B17/00 ,  F04B17/03 ,  F04B35/04 ,  F04D17/161 ,  F04D25/06 ,  F04D25/0626 ,  F04D29/083 ,  F04D29/281

Abstract: This blower apparatus includes an air blowing portion, a motor portion, and a housing. The housing includes an air inlet and an air outlet. At least one of the flat plates includes an air hole. Once the air blowing portion starts rotating, an air flow traveling radially outward is generated between the flat plates by viscous drag of surfaces of the flat plates and a centrifugal force. Since the air flow is generated between the flat plates, the air flow does not easily leak upwardly or downwardly, and thus, an improvement in air blowing efficiency is achieved. Since the air hole is defined in the flat plate(s), gas can be easily supplied to the axial gap, resulting in improved air blowing efficiency. In addition, with each spacer being arranged between the flat plates, the axial gap can be adjusted to have a desired axial dimension.