公开(公告)号：US20070175209A1

公开(公告)日：2007-08-02

申请号：US11341629

申请日：2006-01-30

Applicant: David Smith ,  Igor Strashny ,  Daniel Mather

Inventor： David Smith ,  Igor Strashny ,  Daniel Mather

IPC: F16D31/02

CPC classification number: F15B21/14 ,  E02F9/2217 ,  E02F9/2292 ,  F15B2211/88

Abstract: A hydraulic energy recovery device for a hydraulic system is disclosed. The hydraulic energy recovery device has a first impeller configured to receive a flow of pressurized liquid, and a second impeller configured to pressurize a flow of liquid. The hydraulic energy recovery device also has a common shaft connecting the first and second impellers.

Abstract translation: 公开了一种用于液压系统的液压能量回收装置。 液压能量回收装置具有构造成接收加压液体流的第一叶轮和被配置为对液体流加压的第二叶轮。 液压能量回收装置还具有连接第一和第二叶轮的共同轴。

公开(公告)号：US20070186548A1

公开(公告)日：2007-08-16

申请号：US11341630

申请日：2006-01-30

Applicant: David Smith ,  Daniel Mather

Inventor： David Smith ,  Daniel Mather

IPC: F16D31/02

CPC classification number: F15B21/14 ,  E02F9/2217 ,  E02F9/2292 ,  F15B11/006 ,  F15B2211/20523 ,  F15B2211/30575 ,  F15B2211/625 ,  F15B2211/7053 ,  F15B2211/88

Abstract: A hydraulic system for a work machine is provided. The hydraulic regeneration system has a tank, a primary source, a first actuator, an accumulator, and a first valve mechanism. The tank is configured to hold a supply of fluid. The primary source is configured to pressurize the fluid and has a suction inlet and a discharge outlet. The first actuator is configured to receive pressurized fluid from the discharge outlet of the primary source. The accumulator is in fluid communication with the tank, the suction inlet of the primary source, and the first actuator. The first valve mechanism is disposed between the suction inlet of the primary source and the accumulator, and is movable between a first position at which fluid returning from the first actuator is directed to the suction inlet of the primary source, and a second position at which fluid returning from the first actuator is directed to only the accumulator.

Abstract translation: 提供了一种用于作业机械的液压系统。 液压再生系统具有罐，主源，第一致动器，蓄能器和第一阀机构。 罐被配置成保持流体供应。 主要来源被配置为对流体加压并具有吸入口和排出口。 第一致动器构造成从主源的排出口接收加压流体。 蓄能器与罐，主源的吸入口和第一致动器流体连通。 第一阀机构设置在主源的吸入口和蓄能器之间，并且可在第一位置和第二位置之间移动，在第一位置，第一位置，第一位置从第一致动器返回的流体被引导到主源的吸入口， 从第一致动器返回的流体仅被引导到蓄能器。

公开(公告)号：US20070022871A1

公开(公告)日：2007-02-01

申请号：US11192036

申请日：2005-07-29

Applicant: David Smith ,  Daniel Mather

Inventor： David Smith ,  Daniel Mather

IPC: F15B13/04

CPC classification number: G05D7/014 ,  F15B11/006 ,  F15B13/0433 ,  F15B2211/20546 ,  F15B2211/30575 ,  F15B2211/3144 ,  F15B2211/413 ,  F15B2211/426 ,  F15B2211/428 ,  F15B2211/7053 ,  G05D7/005

Abstract: A metering valve for a work machine hydraulic system is disclosed. The metering valve has a valve body with an inlet and an outlet. The metering valve also has a main poppet disposed within the valve body between the inlet and the outlet. The main poppet has a nose end and a chamber end, and is movable between a flow-passing position at which fluid flows from the inlet to the outlet, and a flow-blocking position at which fluid flow between the inlet and outlet is blocked. The metering valve also has a pilot element movable to selectively communicate the chamber end of the main poppet with a drain, thereby affecting movement of the main poppet between the flow-passing and flow-blocking positions. The metering valve further has a solenoid mechanism operable to move the pilot element. The position of the pilot element is affected by a fluid pressure at the inlet.

公开(公告)号：US20070044649A1

公开(公告)日：2007-03-01

申请号：US11214957

申请日：2005-08-31

Applicant: David Smith ,  Daniel Mather ,  Wayne Lark

Inventor： David Smith ,  Daniel Mather ,  Wayne Lark

IPC: F15B13/04

CPC classification number: F15B13/024 ,  F15B13/0433 ,  F15B2211/30505 ,  F15B2211/30575 ,  F15B2211/329 ,  F15B2211/353 ,  F15B2211/355 ,  F15B2211/365 ,  F15B2211/55 ,  F15B2211/555 ,  F15B2211/8609 ,  G05D16/2093

Abstract: A metering valve for a work machine hydraulic system is disclosed. The metering valve has an inlet and an outlet, a main poppet, and a solenoid-operated pilot element. The main poppet is movable to pass fluid from the inlet to the outlet, and to block fluid from the inlet to the outlet. The solenoid-operated pilot element is movable between a first position at which pressurized fluid from the inlet pressurizes a control chamber in communication with a control end of the main poppet to urge the main poppet toward the flow-blocking position, and a second position at which the control chamber is communicated with a drain to move the main poppet toward the flow-passing position. The metering valve also has a relief valve element configured to drain pressurized fluid from the control chamber to move the main poppet toward the flow-passing position in response to a pressure at the inlet exceeding a predetermined pressure.

公开(公告)号：US11849666B2

公开(公告)日：2023-12-26

申请号：US17032131

申请日：2020-09-25

Applicant: David Smith

Inventor： David Smith

IPC: A01D34/00 ,  A01D101/00 ,  A01D34/73

CPC classification number: A01D34/001 ,  A01D34/733 ,  A01D2101/00

Abstract: A mower blade bracket apparatus for safely changing mower blades includes a bracket body comprising a first half adjustably coupled to a second half to adjust for a distance between a first distal end and a second distal end. The first distal end and the second distal end have a first mounting aperture and a second mounting aperture extending therethrough, respectively. A pair of mounting bolts is coupled to the bracket body. The pair of mounting bolts is engaged with the first mounting aperture and the second mounting aperture to selectively engage a skirt of a lawn mower. A blade sleeve is coupled to the bracket body. The blade sleeve slidingly receives a blade of the lawn mower.

公开(公告)号：US20230320925A1

公开(公告)日：2023-10-12

申请号：US18297067

申请日：2023-04-07

Applicant: David Smith

Inventor： David Smith

IPC: A61H9/00 ,  A61M16/00 ,  A61M16/06

CPC classification number: A61H9/0092 ,  A61M16/0045 ,  A61M16/0683 ,  A61H9/0007 ,  A61H2201/107 ,  A61H2205/04 ,  A61H2201/1609 ,  A61H2201/165 ,  A61H2201/1676 ,  A61H2201/1246 ,  A61H2201/1215

Abstract: Methods and devices are provided for manipulating the glymphatic system to improve cognitive and other cranial or brain functions of a subject. In particular, pressure is alternately applied to the jugular veins on either side of the subject's neck to generate a to and fro movement of cranial fluids.

公开(公告)号：US11286185B1

公开(公告)日：2022-03-29

申请号：US17096005

申请日：2020-11-12

Applicant: Terence K. Reid ,  David Smith

Inventor： Terence K. Reid ,  David Smith

IPC: C02F3/12 ,  B01D21/24 ,  B01D21/00 ,  C02F1/00

Abstract: System and method of scum collection and removal in batch biological wastewater treatment systems.

公开(公告)号：US10004515B2

公开(公告)日：2018-06-26

申请号：US13489536

申请日：2012-06-06

Applicant: David Smith ,  Joseph A. Fisher

Inventor： David Smith ,  Joseph A. Fisher

IPC: A61B17/00 ,  A61B17/132 ,  A61B17/135 ,  A61F5/30 ,  A61B90/00

CPC classification number: A61B17/1325 ,  A61B17/135 ,  A61B17/1355 ,  A61B90/08 ,  A61B2017/00119 ,  A61B2017/00734 ,  A61B2090/0807 ,  A61F5/30

Abstract: A method and device for reducing the damaging effects of a blast or concussive event includes applying pressure to at least one jugular vein to reduce the egress of blood from the cranial cavity during the incidence of the concussive event. Reducing blood out flow from the cranial cavity increases intracranial pressure of the cerebrospinal fluid to reduce the risk of traumatic brain injury and injuries to the spinal column. Reducing blood out flow further increases the intracranial pressure, and thereby increases the pressure of the cochlear fluid, the vitreous humor and the cerebrospinal fluid to thereby reduce the risk of injury to the inner ear, internal structure of the eye and of the spinal column. In addition, increasing intracranial pressure reduces the likelihood of brain injury and any associated loss of olfactory function.

公开(公告)号：US09843191B2

公开(公告)日：2017-12-12

申请号：US13247424

申请日：2011-09-28

Applicant: David Smith ,  Maozhong Gong

Inventor： David Smith ,  Maozhong Gong

IPC: H02J3/38

CPC classification number: H02J3/383 ,  H02J2003/388 ,  Y02E10/563 ,  Y10T307/50

Abstract: A power converter including a detection apparatus and method for detecting an islanding condition based on measurements of one or more currents and voltages within the power converter provided to a current regulator to generate a signal that is provided in a positive feedback loop and is indicative of an islanding condition.

公开(公告)号：US20170140396A1

公开(公告)日：2017-05-18

申请号：US15353479

申请日：2016-11-16

Applicant: Martha Amram ,  Sandra Carrico ,  Brian Ward ,  David Nelson ,  Trista Chen ,  David Smith

Inventor： Martha Amram ,  Sandra Carrico ,  Brian Ward ,  David Nelson ,  Trista Chen ,  David Smith

IPC: G06Q30/02 ,  G06Q50/06

CPC classification number: G06Q30/0201 ,  G06Q50/06

Abstract: A computer-implemented method for identifying utility usage from a historical utility file is disclosed. The method includes obtaining a file containing historical utility consumption of a dwelling over a time period; processing the file through optical character recognition (OCR); identifying contextual data from the OCR processed file; identifying chart data from the OCR processed file; extracting one or more values from the chart data, wherein the values correspond to one or more elements of the chart data; and contextualizing the extracted values from the chart data by applying the contextual data to the extracted value to obtain utility usage data.