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1. 发明授权

US5860491A Hydraulic lift system and method for retrofitting 失效
标题翻译：液压升降系统及改造方法
公开(公告)号：US5860491A
公开(公告)日：1999-01-19
申请号：US847822
申请日：1997-04-28
申请人： Robert H. Fletcher
发明人： Robert H. Fletcher
IPC分类号： B66B9/04 , B66F7/18 , B66F7/00
CPC分类号： B66F7/18 , B66B9/04
摘要： A high pressure, low volume hydraulic lift system and a method for retrofitting a low pressure high volume lift system are provided. The lift system includes a low pressure high volume (LPHV) casing within which is mounted a high pressure ram. The ram is equipped to move a plunger in an axial direction with respect to the casing, without the need for any further reinforcement of the existing casing. The method for retrofitting is effected by removing the pre-existing structure of the LPHV system, cutting a hole in the upper portion of the pre-existing casing, and draining all hydraulic fluid. Thereafter, the pre-existing gland flange and plunger are removed. A high pressure low volume hydraulic cylinder and associated hydraulic line, are then installed in the casing of the pre-existing system. The bottom of the high pressure hydraulic cylinder is mechanically locked to the base of the pre-existing outer casing. The hydraulic line is attached to a new hydraulic compressor and a new plunger is added to the new hydraulic cylinder and, with it, an appropriate bearing and guide mechanism that uses the pre-existing casing as an outer guide means for the new plunger. Once the hydraulic ram is installed, any holes cut in the slab are filled with concrete. The lift system and method may be adapted for any type of pre-existing LPHV, such as that used in the automotive industry or in elevators. When used in connection with an automotive lift, the pre-existing superstructure is then secured to the top of the new plunger and cylinder structure.
摘要翻译：提供了一种高压低体积液压升降系统和一种改造低压大容量升降系统的方法。电梯系统包括一个低压大容量（LPHV）外壳，其中安装有高压压头。该冲头配备有相对于壳体沿轴向方向移动柱塞，而不需要对现有套管进一步加固。通过去除LPHV系统的预先存在的结构，在预先存在的套管的上部切割一个孔并排出所有的液压流体来实现改造的方法。此后，拆除预先存在的压盖法兰和柱塞。然后将高压低容量液压缸和相关液压管路安装在预先存在的系统的外壳中。高压液压缸的底部机械地锁定在预先存在的外壳的底部。液压管路连接到新的液压压缩机上，新的液压缸被添加到新的液压缸中，并且借助于它，具有适当的轴承和引导机构，其使用预先存在的套管作为新的柱塞的外部引导装置。一旦安装了液压油缸，板坯中切割的任何孔都充满了混凝土。电梯系统和方法可适用于任何类型的预先存在的LPHV，例如在汽车工业或电梯中使用的LPHV。当与汽车升降机一起使用时，将预先存在的上层结构固定在新的柱塞和气缸结构的顶部。

2. 外观设计

USD343488S Automotive lift 失效
公开(公告)号：USD343488S
公开(公告)日：1994-01-18
申请号：US771994
申请日：1991-10-07
申请人： Robert H. Fletcher
设计人： Robert H. Fletcher

3. 发明授权

US5199686A Non-continuous base ground level automotive lift system 失效
标题翻译：非连续式地基水平汽车升降系统
公开(公告)号：US5199686A
公开(公告)日：1993-04-06
申请号：US815748
申请日：1992-01-02
申请人： Robert H. Fletcher
发明人： Robert H. Fletcher
IPC分类号： B66F7/06 , B66F3/46 , B66F7/08 , B66F7/12 , B66F7/20
CPC分类号： B66F7/08 , B66F7/0641
摘要： An automotive lift system includes a longitudinal series of transverse pairs of left and right rigid lifting legs, neither any legs of said pairs of legs nor any longitudinally successive legs having any on-ground connection therebetween, each of the legs having a top and a bottom, each bottom of each leg having, pivotally secured to it, a planer base which is anchored upon an on-ground floor. The system also includes left and right longitudinal vehicle wheel support platforms, the platforms having a pivotal connection relative to the respective tops of each of the respective pairs of left and right rigid legs. Also included are fluid piston and cylinder power assemblies within at least one pivotal connection within one of the series of left and right lifting legs, for selectively changing the effective length of the pistons of the power assemblies to correspondingly and synchronously modify the angulation between each piston, its corresponding lifting leg, and its respective platform, to synchronously control the height of each platform relative to each other.
摘要翻译：一种汽车升降系统包括纵向一系列左右刚性提升腿的横向对，所述一对腿部的任何腿部以及任何纵向连续腿部之间没有任何地面连接，每个腿部具有顶部和底部每个腿的每个底部具有枢转地固定到其上的平面基座，该平面基座锚定在地面上。该系统还包括左右纵向车轮支撑平台，平台相对于相应的左右刚性腿对中的每一对的顶部具有枢转连接。还包括流体活塞和气缸动力组件，其位于一系列左和右提升腿之一内的至少一个枢转连接中，用于选择性地改变动力组件的活塞的有效长度以相应地并且同步地改变每个活塞，其对应的起吊腿及其各自的平台，以同步地控制每个平台相对于彼此的高度。

4. 发明授权

US4388622A Double sideband linear frequency modulation system for radar applications 失效
标题翻译：用于雷达应用的双边带线性调频系统
公开(公告)号：US4388622A
公开(公告)日：1983-06-14
申请号：US254237
申请日：1981-04-15
申请人： Robert H. Fletcher, Jr.
发明人： Robert H. Fletcher, Jr.
IPC分类号： G01S13/34 , G01S13/58
CPC分类号： G01S13/347 , G01S13/343 , G01S13/58
摘要： A double sideband linear frequency modulation technique for radar applications is disclosed for obtaining simultaneous range and doppler measurements. The method of obtaining measurements is useful in a variety of radar applications; however, the most promising area is in continuous wave radar systems. Linear Frequency Modulated (LFM) waveforms of both increasing and decreasing frequency are simultaneously transmitted. Upon reception, these sideband signals are combined coherently to give an output that is a function of the target's radial velocity. The received signals are also processed separately to obtain target ranging information.
摘要翻译：公开了一种用于雷达应用的双边带线性频率调制技术，用于获得同时的范围和多普勒测量。获得测量的方法在各种雷达应用中是有用的; 然而，最有希望的领域是连续波雷达系统。线性频率调制（LFM）波形同时增加和减少频率。在接收时，这些边带信号被相干地组合以产生作为目标的径向速度的函数的输出。接收到的信号也被单独处理，以获得目标测距信息。

5. 发明授权

US5740886A Method of retrofit of in-ground automotive lift system 失效
标题翻译：地面汽车升降系统改造方法
公开(公告)号：US5740886A
公开(公告)日：1998-04-21
申请号：US683305
申请日：1996-07-18
申请人： Robert H. Fletcher
发明人： Robert H. Fletcher
IPC分类号： B66B9/04 , B66F7/18 , B66F7/00
CPC分类号： B66B9/04 , B66F7/18
摘要： A method of retrofit includes the steps of removing the pre-existing superstructure of the lift system. A hole is then cut in the encasement securing the upper portion of the pre-existing casing. Thereafter, all hydraulic fluid is drained. Thereafter, the pre-existing gland flange is removed. The old plunger is also removed. After the same has been accomplished, there is then provided a high pressure low volume hydraulic cylinder and associated hydraulic line, all of which is positioned within the casing of the pre-existing system. The bottom of the high pressure hydraulic cylinder is mechanically locked to the base of the pre-existing outer casing. A new pump and hydraulic lines are then installed. A new plunger is then added to the new hydraulic cylinder and, with it, an appropriate bearing and guide mechanism which uses the pre-existing casing as an outer guide means for the new plunger. Alternatively, an upper bearing structure is then provided between the top of the pre-existing casing and the new plunger. The hole cut in the concrete encasement is filled with newly placed concrete. The pre-existing superstructure is then secured to the top of the new plunger and cylinder structure.
摘要翻译：一种改进方法包括去除电梯系统的预先存在的上层结构的步骤。然后在固定预先存在的外壳的上部的外壳中切割一个孔。此后，所有液压流体都被排出。此后，去除预先存在的压盖法兰。旧的柱塞也被移除。在完成相同之后，然后提供了一个高压低容量液压缸和相关联的液压管线，所有这些液压管路都位于预先存在的系统的壳体内。高压液压缸的底部机械地锁定在预先存在的外壳的底部。然后安装新的泵和液压管路。然后将新的柱塞添加到新的液压缸中，并且利用它将适当的轴承和引导机构，其使用预先存在的套管作为新的柱塞的外部引导装置。或者，然后在预先存在的套管的顶部和新的柱塞之间提供上轴承结构。混凝土包装中的孔切成新的混凝土。然后将预先存在的上层结构固定在新的柱塞和气缸结构的顶部。

6. 发明授权

US5501296A Dual post single screw automotive screw lift system 失效
标题翻译：双柱单螺杆汽车螺丝升降系统
公开(公告)号：US5501296A
公开(公告)日：1996-03-26
申请号：US357853
申请日：1994-12-16
申请人： Robert H. Fletcher
发明人： Robert H. Fletcher
IPC分类号： B66B9/02 , B66F7/14 , B66F7/10
CPC分类号： B66B9/025 , B66F7/14
摘要： An automotive lift system includes an environment-defining enclosure having an upwardly directed mouth positioned substantially at work level of the system, the enclosure defining both a longitudinal and a transverse axis. The lift system also includes an in-ground anchoring of the enclosure relative to reactive forces generated by vehicles during lifting by the system, the anchoring disposed substantially at the work level and about the mouth of the enclosure. A rigid support frame is secured upon inner annular surfaces of the anchoring, defining a rigid horizontal plane at the mouth of the enclosure and co-parallel with it. Vertically-oriented cylindrical collars are secured to opposite longitudinal ends of the support frame. Further, a vertically oriented elongated screw drive having an upper end and a lower end, the upper end including an annular thrust bearing, is positioned at about the level of the support frame. The system further includes a motor for imparting selectable rotation to the screw drive, an output of the motor in mechanical linkage to the thrust bearing of the screw drive. A load nut is screw-threadably and non-rotationally mounted about the screw drive. Further provided is a horizontal cross-beam, which is rigidly mounted upon the load nut, co-parallel with the longitudinal axis of the enclosure. A load nut mounting tube is positioned radially outwardly of the screw drive, the tube having a lower end rigidly mounted upon the load nut.
摘要翻译：汽车升降系统包括环境限定的壳体，其具有基本上位于系统的工作位置的向上指向的口，所述外壳限定纵向轴线和横向轴线。提升系统还包括围绕由系统提升期间由车辆产生的反作用力的壳体的地面锚固，所述锚固件基本上设置在工作水平处并且围绕围绕着口的位置。刚性支撑框架固定在锚固件的内环形表面上，在壳体的口部限定刚性水平面并与其并联。垂直定向的圆柱形环固定到支撑框架的相对的纵向端部。此外，具有上端和下端的垂直取向的细长螺杆驱动器，上端包括环形推力轴承，位于支撑框架的水平面附近。该系统进一步包括用于向螺杆驱动器施加可选择的旋转的马达，马达的输出与螺杆驱动器的止推轴承机械连接。负载螺母是螺旋式的并且非旋转地安装在螺旋驱动器周围。还提供了水平横梁，其刚性地安装在负载螺母上，与外壳的纵向轴线共同平行。负载螺母安装管位于螺旋驱动器的径向外侧，该管具有刚性地安装在负载螺母上的下端。

7. 发明授权

US5190122A Safety interlock system 失效
标题翻译：安全联锁系统
公开(公告)号：US5190122A
公开(公告)日：1993-03-02
申请号：US758118
申请日：1991-09-12
申请人： Robert H. Fletcher , James Myers
发明人： Robert H. Fletcher , James Myers
IPC分类号： B66F7/08
CPC分类号： B66F7/08 , B66F7/0641 , Y10T74/20582 , Y10T74/20606
摘要： A safety interlock system is provided for enabling ascend or descend interrupt of an automotive lift platform. A interface of negative rake sinusoidal shaped surfaces is employed together with an assembly for selectably placing such surfaces against each other during descent interrupt.
摘要翻译：提供了一种用于使汽车升降平台上升或下降中断的安全联锁系统。负耙形正弦曲面的界面与组件一起使用，用于在下降中断期间将这些表面可选地放置在彼此之间。

8. 发明授权

US5096159A Automotive lift system 失效
标题翻译：汽车升降系统
公开(公告)号：US5096159A
公开(公告)日：1992-03-17
申请号：US643021
申请日：1991-01-18
申请人： Robert H. Fletcher
发明人： Robert H. Fletcher
IPC分类号： B66F7/08
CPC分类号： B66F7/08 , B66F7/0641
摘要： An automotive lift system includes a number of longitudinal transverse pairs of left and right legs each of which legs, include a top and a bottom. Each bottom is pivotally stationed to a base which in turn is positioned upon a floor. The lift system eliminates the need for torsion bars and provides ease of front-to-back and left-to-right access beneath an automotive vehicle that has been elevated.
摘要翻译：一种汽车升降系统包括左腿和右腿的多个纵向横向对，每个腿包括顶部和底部。每个底部枢转地安置在基座上，底座又位于地板上。电梯系统消除了对扭杆的需要，并且提供了已经升高的机动车辆下方的从前到后和从左到右的通路的容易性。

9. 发明授权

US5404968A Automotive screw lift system with interchangeable components 失效
标题翻译：具有可互换部件的汽车螺丝升降系统
公开(公告)号：US5404968A
公开(公告)日：1995-04-11
申请号：US194058
申请日：1994-02-09
申请人： Robert H. Fletcher
发明人： Robert H. Fletcher
IPC分类号： B66F7/14 , B60S13/00
CPC分类号： B66F7/14
摘要： An automotive screw lift system includes a front below ground level cavity having a first depth below a surface level. A track element is secured across a mouth of the front cavity proximally to the front surface level. A trolley is provided which is proportioned for slidable longitudinal movement within the track of the front cavity. Further provided is a rear below ground level cavity having a depth greater than the first depth of the front cavity, the rear cavity disposed along a given longitudinal axis relative to the front cavity. Yet further provided is a cavity enclosure secured upon a top opening of the rear cavity, the enclosure positioned beneath the surface level. Within the front and rear below ground cavities are provided front and rear screw lift assemblies each having a length less than the first depth of the first cavity, each of the lift assemblies having upper ends having flanges selectably interfaceable with either of the trolley or the rear enclosure. Either of the screw lift assemblies may be positioned with either of the trolley or rear of the respective front and rear below ground cavities. Attached to upper ends of each lift assembly are vehicle wheel interface assemblies.
摘要翻译：汽车螺丝升降系统包括在低于地面水平面的第一深度的地面空腔下面的前部。轨道元件被固定在前腔前部的嘴部的前表面水平面附近。提供了一个小车，其成比例地用于在前腔的轨道内的可滑动的纵向运动。进一步提供的是具有大于前腔的第一深度的深度的地面空腔下方的后部，后腔相对于前腔沿着给定的纵向轴线设置。还提供了固定在后腔的顶部开口上的空腔，外壳定位在表面水平面之下。在前面和后面的地面空腔内部设有前螺钉提升组件和后螺丝提升组件，每个升降组件的长度小于第一空腔的第一深度，每个提升组件具有上端部，其具有可选择地与手推车或后部外壳。螺丝提升组件中的任一个可以被定位成位于相应的前部和后部的手推车中的任一个或后部的地面空腔下方。每个电梯组件的上端附接有车轮接口组件。

10. 发明授权

US5573083A In-ground automotive lift system 失效
标题翻译：地面汽车升降系统
公开(公告)号：US5573083A
公开(公告)日：1996-11-12
申请号：US398992
申请日：1995-03-06
申请人： Robert H. Fletcher , Glenn Felpel
发明人： Robert H. Fletcher , Glenn Felpel
IPC分类号： B66F7/14 , B66F7/00
CPC分类号： B66F7/14
摘要： An automotive lift system includes a vertically elongated in-ground environment-defining canister having an upwardly directed mouth, an automotive lift, an assembly for selectable detachable suspension of said lift situated substantially upon and about the mouth of the canister, an in-ground anchor of the assembly relative to reactive forces generated by the lift and communicated therefrom through the suspension assembly to the anchor.
摘要翻译：汽车升降机系统包括垂直延伸的地面环境限定罐，其具有向上指向的口，汽车升降机，用于可选择地可拆卸悬挂的组件，所述组件基本上位于所述罐的口部上且围绕所述罐的口部，地面锚的组件相对于由升降机产生的反作用力并通过悬架组件传递到锚固件。

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