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1. 发明授权

US5597987A Twin post, telescoping jack hydraulic elevator system 失效
标题翻译：双柱，伸缩式液压升降机系统
公开(公告)号：US5597987A
公开(公告)日：1997-01-28
申请号：US377078
申请日：1995-01-25
申请人： Oscar Gilliland , Foad Vafaie , Martin W. Hughes , Charlie R. Thurmond, III , Paul Tomes
发明人： Oscar Gilliland , Foad Vafaie , Martin W. Hughes , Charlie R. Thurmond, III , Paul Tomes
IPC分类号： B66B1/04 , B66B9/04
CPC分类号： B66B1/24 , B66B1/405 , B66B9/04
摘要： A twin post, telescoping jack hydraulic elevator system has a pair of dynamic sensors to determine when the jacks are out of synchronization, by determining any relative differences in height between the two intermediate cylinders. The elevator also includes static sensors to determine if one or both intermediate cylinders are more than a predetermined distance away from their normal positions when the car is stopped at each floor. The controller actuates a resynchronization if the distance between the intermediate jacks exceeds a first threshold, and shuts down the elevator if the distance exceeds a second threshold or if resynchronization demands are issued too often. Preferably, the static sensors are positioned to detect the seal housing at the top of the intermediate cylinder, which projects outwardly from the cylinder.
摘要翻译：双柱式伸缩式液压升降机系统具有一对动态传感器，通过确定两个中间气缸之间的任何相对高度差异来确定千斤顶是否不同步。电梯还包括静态传感器，用于在汽车停在每个楼层时确定一个或两个中间气缸是否超过其正常位置的预定距离。如果中间插座之间的距离超过第一阈值，则控制器启动重新同步，并且如果距离超过第二阈值则关闭电梯，或者如果再次发出重新同步请求，则该控制器将重新同步。优选地，静态传感器被定位成检测在中间圆柱体的顶部处的密封壳体，其从气缸向外突出。

2. 发明授权

US6085872A Roped hydraulic elevator 失效
标题翻译：滚装液压电梯
公开(公告)号：US6085872A
公开(公告)日：2000-07-11
申请号：US47972
申请日：1998-03-25
申请人： Oscar Gilliland , George J Thomas
发明人： Oscar Gilliland , George J Thomas
IPC分类号： B66B9/04 , B66B11/04
CPC分类号： B66B9/04
摘要： A roped hydraulic elevator has a hydraulic jack whose upper end, preferably the plunger end, is secured to an upper region of the elevator hoistway, and whose lower end is free to move vertically. A first sheave is supported by the lower end of the jack, and at least one overhead sheave is supported in the upper hoistway region. A rope has one end secured to the hoistway near the top of the hoistway. The rope extends downwardly, around the first sheave, upwardly from the first sheave to the overhead sheave, and downwardly from the overhead sheave to the car, where it is secured. Preferably, a counterweight is supported by the lower end of said jack. Also, preferably one or more guide rails and guide shoes are used to guide the movement of the jack lower end and counterweight. The elevator is relatively simple in design, and the roping system produces a 2:1 ratio of car movement to jack movement, which allows the use of a shorter jack or, alternatively, a greater range of car travel. The system has the advantage that the weight of the plunger, and the weight of the hydraulic fluid inside the jack, inherently act as a counterweight to the weight of the car. Thus, even if a separate counterweight were not to be used, the system reduces the energy needed to raise the car. It also offers the advantage that the rope can be connected to the car near its center of gravity, thereby reducing the load on the car guide rails and shoes.
摘要翻译：绳索液压升降机具有液压千斤顶，其上端，优选柱塞端固定到电梯井道的上部区域，并且其下端可自由垂直移动。第一滑轮由千斤顶的下端支撑，并且至少一个顶部滑轮支撑在上部井道区域中。绳索的一端固定在靠近井道顶部的井道。绳索围绕第一滑轮向下延伸，从第一滑轮向上延伸到顶部滑轮，并从塔顶滑轮向下延伸到汽车，在那里固定。优选地，配重由所述千斤顶的下端支撑。此外，优选地，使用一个或多个导轨和导靴来引导千斤顶下端和配重的运动。电梯的设计相对简单，绳索系统产生汽车运动与千斤顶运动的比例为2：1，这允许使用较短的千斤顶，或者更大范围的汽车行驶。该系统的优点在于，柱塞的重量以及千斤顶内的液压流体的重量固有地用作与轿厢的重量的配重。因此，即使不使用单独的配重，该系统降低了升高汽车所需的能量。它还具有绳索可以靠近其重心连接到汽车的优点，从而减轻了轿厢导轨和鞋子的负载。

3. 发明授权

US6059073A Overspeed valve for hydraulic elevator 失效
标题翻译：液压电梯超速阀
公开(公告)号：US6059073A
公开(公告)日：2000-05-09
申请号：US58709
申请日：1998-04-10
申请人： Oscar Gilliland , Augusts Kiperts
发明人： Oscar Gilliland , Augusts Kiperts
IPC分类号： F16K17/06 , F16K17/08 , F16K17/28 , B66B9/04
CPC分类号： F16K17/28 , F16K17/065 , F16K17/082
摘要： A hydraulic elevator includes a car supported by at least one jack, and a fluid line for venting hydraulic fluid from the jack for lowering the car. An overspeed valve, disposed in the fluid line, comprises a housing having an inlet chamber and an outlet chamber. A piston is mounted on a stem disposed inside of the housing so as to be axially moveable, relative to the stem and housing, between an open position, allowing fluid communication between the inlet chamber and the outlet chamber, and a closed position, in which the piston at least essentially blocks fluid communication between said inlet and outlet chambers. A pressure chamber is formed behind the rearward end of the piston, and a conduit, preferably formed in the piston, allows fluid from the inlet chamber to flow into the pressure chamber. A spring, together with the pressure downstream of the valve, urge the piston towards its open position, whereas fluid in the pressure chamber urge the piston towards its closed position. Under normal conditions, the downstream pressure is sufficient to keep the valve open, to allow the elevator car to descend. Should the pressure drop across the valve exceed a predetermined amount, as would occur if the oil line should break, the valve is pushed closed which stops downward elevator movement. Preferably, the stem is coupled to the housing for adjustment in an axial direction for increasing or decreasing the distance between the open and closed positions, which, due to the higher spring force required to close the valve, will change the amount of downstream pressure drop required before the valve will close.
摘要翻译：液压升降机包括由至少一个千斤顶支撑的汽车和用于从用于使轿厢下降的千斤顶排出液压流体的流体管线。设置在流体管线中的超速阀包括具有入口室和出口室的壳体。活塞安装在设置在壳体内部的杆上，以便相对于杆和壳体可在允许入口室和出口室之间流体连通的打开位置和关闭位置之间轴向移动，其中闭合位置所述活塞至少基本上阻挡所述入口和出口室之间的流体连通。压力室形成在活塞的后端后面，并且优选地形成在活塞中的导管允许来自入口室的流体流入压力室。弹簧与阀下游的压力一起将活塞推向其打开位置，而压力室中的流体将活塞推向其关闭位置。在正常情况下，下游压力足以保持阀门打开，以使电梯轿厢下降。如果阀门上的压降超过预定的量，如果油管线应该断裂会发生这种情况，阀门将被关闭，从而停止电梯运动。优选地，杆联接到壳体以用于在轴向方向上的调节，以增加或减小打开和关闭位置之间的距离，由于关闭阀门所需的更高的弹簧力将改变下游压降的量阀门关闭前需要。

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