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公开(公告)号：US20170081159A1
公开(公告)日：2017-03-23
申请号：US15363542
申请日：2016-11-29
Applicant: Brookfield Hunter, Inc.
Inventor： Lloyd L. Lautzenhiser , Wade Wolf
CPC classification number: B66F5/04 , B66F3/26 , B66F3/42 , B66F2700/057
Abstract: A method of extending a jack including the steps of: first stage pumping by passing pressurized fluid at a first pressure and a first volume to a jack cylinder primarily by movement of a piston; and second stage pumping by passing pressurized fluid at a second pressure and a second volume to the jack cylinder primarily by movement of a rod connected to the piston.
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公开(公告)号：US09528533B2
公开(公告)日：2016-12-27
申请号：US14250232
申请日：2014-04-10
Applicant: HERRMANN AG
Inventor： Johannes Herrmann
Abstract: An apparatus for lifting motor vehicles includes a first lifting device which is movable in a vertical direction and which is suitable for supporting a first region of the motor vehicle to be lifted, and a second lifting device which is arranged at a distance from the first lifting device and which is suitable for supporting a second region of the motor vehicle to be lifted. A first supply line supplies an hydraulic medium to the first lifting device, and with a second supply line supplies an hydraulic medium to the second lifting device.
Abstract translation: 一种用于提升机动车辆的装置，包括：第一提升装置，该第一升降装置可在垂直方向上移动并且适于支撑待提升的机动车辆的第一区域;以及第二提升装置， 并且其适合于支撑待提升的机动车辆的第二区域。 第一供应管路将液压介质供应到第一提升装置，并且第二供应管路将液压介质供应到第二提升装置。
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公开(公告)号：US07694940B2
公开(公告)日：2010-04-13
申请号：US11942385
申请日：2007-11-19
Applicant: Ming-Chuan Yueh
Inventor： Ming-Chuan Yueh
IPC: B66F3/24
Abstract: There is disclosed a jack that provides lifting from multiple orientations or directions. The jack is able to provide the lifting from these multiple orientations as fluid is continuously transferred from a reservoir to a pumping chamber to a piston chamber, regardless of the orientation or direction of the jack.
Abstract translation: 公开了一种千斤顶，其提供从多个方向或方向起吊。 千斤顶能够提供从这些多个取向的提升，因为流体从储存器连续转移到泵送室到活塞室，而与千斤顶的方向或方向无关。
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公开(公告)号：US20090127532A1
公开(公告)日：2009-05-21
申请号：US11942385
申请日：2007-11-19
Applicant: Ming-Chuan Yueh
Inventor： Ming-Chuan Yueh
Abstract: There is disclosed a jack that provides lifting from multiple orientations or directions. The jack is able to provide the lifting from these multiple orientations as fluid is continuously transferred from a reservoir to a pumping chamber to a piston chamber, regardless of the orientation or direction of the jack.
Abstract translation: 公开了一种千斤顶，其提供从多个方向或方向起吊。 千斤顶能够提供从这些多个取向的提升，因为流体从储存器连续转移到泵送室到活塞室，而与千斤顶的方向或方向无关。
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公开(公告)号：US20070051932A1
公开(公告)日：2007-03-08
申请号：US11259360
申请日：2005-10-27
Applicant: Tae-Hong Ha
Inventor： Tae-Hong Ha
IPC: B66F3/22
Abstract: The present invention relates to a cylinder apparatus for a hydraulic lift jack with a transmission device, in which a transmission device is installed to adjust an ascending and descending velocity of the lift jack by pumping the fluids so that the ascending velocity of the lift jack can be increased progressively at high velocity when the load has not been applied, and the ascending velocity of the lift jack can be increased strongly at low velocity when the load has been applied, at the time of the ascending and descending operations of the lift jack. The cylinder apparatus for a hydraulic lift jack with a transmission device of the present invention comprises lifting means including x-shaped beams for moving an upper plate pivotably engaged on an upper portion of the beam up and down by the hydraulic pressure in the hydraulic cylinder; fluid pumping means including a main hydraulic cylinder located below the lifting means for in-taking the oil stored in the oil tank installed at the inside of a base frame and pumping it to the outside, and a piston installed to move reciprocatably within the main hydraulic cylinder; and pumping transmission means including a transmission control portion installed at the outside of the fluid pumping means for controlling the pumping volume of the fluid so that ascending velocity of a lift portion can be controlled progressively, an oil pressure removing portion in the piston for removing the pressure of oil flowed into the piston by the transmission control portion so that it can supply a little volume of fluids.
Abstract translation: 本发明涉及一种具有传动装置的液压提升千斤顶的气缸装置，其中安装传动装置以通过泵送流体来调节提升千斤顶的上升和下降速度，使升降千斤顶的上升速度 在没有施加负载的情况下以高速度逐渐增加，并且当提升千斤顶的上升和下降操作时，当施加负载时，提升千斤顶的上升速度可以以低速强烈地增加。 具有本发明的传动装置的液压提升千斤顶的气缸装置包括提升装置，其包括x形梁，用于通过液压缸中的液压将上板可上下移动地枢转地接合在梁的上部; 液体泵送装置，包括位于提升装置下方的主液压缸，用于吸收存储在安装在基座框架内部的油箱中的油并将其泵送到外部;以及活塞，其安装成在主液压内可往复运动 圆筒; 并且泵送传动装置包括安装在流体泵送装置的外部的传动控制部分，用于控制流体的泵送体积，使得能够逐渐控制提升部分的上升速度;活塞中的除油部分的油压去除部分 油的压力通过变速器控制部分流入活塞，使得其能够供应少量流体。
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Patent Agency Ranking
公开(公告)号：US20020079481A1
公开(公告)日：2002-06-27
申请号：US09742136
申请日：2000-12-22
Inventor： Darryl C. Oxtoby
IPC: B66F003/00
Abstract: A relatively simple toe jack includes a base; a cylinder mounted on the base and carrying a plunger; a load carrying sleeve mounted on the plunger; a load saddle and a load engaging toe on the sleeve; and a two-stage pump carrying a reservoir mounted on the base beside the cylinder, the pump including a handle specifically shaped to fit into a lever which operates the piston of the pump. The plunger is returned to a rest position by a spring mounted in the plunger and connected to the bottom of the cylinder.
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公开(公告)号：US4467702A
公开(公告)日：1984-08-28
申请号：US333389
申请日：1981-12-22
Applicant: Peter E. Ellen
Inventor： Peter E. Ellen
CPC classification number: B66F3/26 , F16J10/02 , F16J15/48 , Y10T29/49249 , Y10T29/49256 , Y10T29/4927 , Y10T29/5383
Abstract: A hydraulic jack having a piston and a cylinder in which the piston has at its head a cavity the dimensions of the cavity and the constructional materials of the cylinder and the piston being selected so that hydraulic pressure applied within the cylinder acts to deform the cylinder wall and the parts of the piston defining the cavity in such a manner that, over the normal rate of operating pressures of the jack the clearance between the piston and the cylinder remains within the capacity of the sealing means arranged between the piston and the cylinder to provide an effective seal.
Abstract translation: 一种具有活塞和气缸的液压千斤顶，其中活塞在其头部具有空腔，空腔的尺寸和气缸和活塞的结构材料的尺寸被选择，使得施加在气缸内的液压作用使气缸壁变形 并且所述活塞的所述部分以这样的方式限定所述空腔，使得在所述千斤顶的正常工作压力下，所述活塞和所述气缸之间的间隙保持在设置在所述活塞和所述气缸之间的所述密封装置的容量内，以提供 有效印章。
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公开(公告)号：US3999467A
公开(公告)日：1976-12-28
申请号：US612442
申请日：1975-09-11
Applicant: Arne Engquist
Inventor： Arne Engquist
Abstract: A piston-cylinder assembly having a circumferential groove around the piston near the end of the piston facing the cylinder chamber, a cuff around the piston at a location more remote from said chamber from the groove, a guide ring mounted in the groove for slideably abutting the cylinder wall, the guide ring having a convex inner configuration and a generally cylindrical outer configuration.
Abstract translation: 一种活塞 - 气缸组件，其具有围绕活塞的靠近气缸室的端部附近的活塞的周向槽，在距离所述腔更远离凹槽的位置处的活塞周围的环绕，安装在凹槽中的可滑动地邻接的导向环 气缸壁，导向环具有凸形的内部构造和大致圆柱形的外部构造。
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公开(公告)号：US2390241A
公开(公告)日：1945-12-04
申请号：US45610642
申请日：1942-08-24
Applicant: DEMPSEY OSCAR E
Inventor： DEMPSEY OSCAR E
IPC: B66F3/26
CPC classification number: B66F3/26
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公开(公告)号：US1759517A
公开(公告)日：1930-05-20
申请号：US30156428
申请日：1928-08-23
Applicant: CHIPMAN MILLER HENRY , HARRY DAINTON EDGAR
Inventor： CHIPMAN MILLER HENRY , HARRY DAINTON EDGAR
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