公开(公告)号：US4343598A

公开(公告)日：1982-08-10

申请号：US130438

申请日：1980-03-14

申请人： Friedrich Schwing ,  Gerhard Schwing

发明人： Friedrich Schwing ,  Gerhard Schwing

IPC分类号： F04B15/02 ,  F04B7/00

CPC分类号： F04B15/023 ,  Y10S417/90

摘要： A valve structure for a viscous material pump having a material reservoir, a pair of alternately operable material conveying cylinders, discharge conduit means, and a valve control means coupled to the valve structure and to the material conveying cylinders. The valve structure has a pair of movable swivel pipes extending between the conveying cylinders and the discharge conduit means. Each of the swivel pipes has an opening movable over one of the conveying cylinders to receive the contents discharged therefrom and a plate movable over said one conveying cylinder to block same. The swivel pipes are movable by said valve control means among a first position in which said conveying cylinder is open to the reservoir to receive viscous material therefrom during the suction cycle of the cylinder, a second position in which said plate blocks said conveying cylinder during a portion of the supply cycle thereof to compress the material, and a third position in which the opening communicates with said cylinder for receiving the contents discharged therefrom during the remainder of the supply cycle for delivery to the discharge conduit means.

摘要翻译： 一种用于具有材料储存器的粘性材料泵的阀结构，一对可交替操作的材料输送缸，排出管道装置和联接到阀结构和物料输送缸的阀控制装置。 阀结构具有一对可移动的旋转管，其在输送气缸和排出管道装置之间延伸。 每个旋转管具有可在一个输送圆柱体上移动的开口，用于接纳从其排出的内容物和可移动在所述一个输送圆筒上以阻止其的板。 旋转管可通过所述阀控制装置在第一位置中移动，在第一位置中，在气缸的吸入循环期间，所述输送气缸向储存器开放以接收粘性材料;第二位置，其中所述板在一个 供应循环的一部分以压缩材料;第三位置，其中开口与所述气缸连通，用于在供应循环的剩余时间内接收从其排出的内容物，以便输送到排放管道装置。

公开(公告)号：US4333977A

公开(公告)日：1982-06-08

申请号：US181908

申请日：1980-08-27

申请人： Louis Abrahams ,  Thomas P. J. Izod

发明人： Louis Abrahams ,  Thomas P. J. Izod

IPC分类号： B29C67/04 ,  C08K3/16 ,  C08K7/06 ,  F04B15/04 ,  B32B3/10 ,  B32B27/00 ,  C08K7/02

CPC分类号： F04B15/04 ,  B29C67/04 ,  B29C70/04 ,  C08K3/16 ,  C08K7/06 ,  B29K2307/00 ,  Y10S417/90 ,  Y10T428/24273 ,  Y10T428/31544

摘要： A wear-resistant and chemically-inert article made from a sintered mixture of polytetrafluoroethylene, graphite fibers, and fluorinated graphite.

摘要翻译： 由聚四氟乙烯，石墨纤维和氟化石墨的烧结混合物制成的耐磨和化学惰性物品。

公开(公告)号：US4304527A

公开(公告)日：1981-12-08

申请号：US29014

申请日：1979-04-11

申请人： Thomas J. Jewell ,  John D. Webster

发明人： Thomas J. Jewell ,  John D. Webster

IPC分类号： F04F1/14 ,  B01D25/30 ,  F01L21/02 ,  F01L25/08 ,  F04B9/117 ,  F04B53/14 ,  F04F1/10

CPC分类号： F01L25/08 ,  B01D25/302 ,  F01L21/02 ,  F04B53/14 ,  F04B53/142 ,  F04B9/1176 ,  F04B9/1178 ,  Y10S417/90

摘要： A system for pumping an abrasive or corrosive fluid at high pressure and with a variable delivery rate. The system comprises raising the pressure in a non-corrosive and non-abrasive liquid in a pressure raising means comprising pump means and at least two intermediate cylinders containing floating pistons. The pressure is transferred to the abrasive or corrosive fluid in pressure transfer vessels. A valve arrangement controls the flow of non-abrasive and non-corrosive liquid to the intermediate cylinders and return means are provided for returning the floating pistons after each stroke. The valve arrangement is controlled in dependence on the positions of the floating pistons in their intermediate cylinders.The system is particularly useful for supplying clay slurry to a high pressure plate filter press.

摘要翻译： 用于在高压和可变输送速率下泵送磨料或腐蚀性流体的系统。 该系统包括在包括泵装置的压力提升装置和包含浮动活塞的至少两个中间气缸中的非腐蚀性和非研磨性液体中提高压力。 压力传递到压力传递容器中的磨料或腐蚀性流体。 阀装置控制非研磨性和非腐蚀性液体流向中间气瓶的流动，并且提供返回装置用于在每次冲程之后返回浮动活塞。 阀装置根据浮动活塞在其中间气缸中的位置进行控制。 该系统特别可用于将粘土浆料供应到高压板式压滤机。

公开(公告)号：US4258612A

公开(公告)日：1981-03-31

申请号：US969369

申请日：1978-12-14

申请人： Herbert Kuhlmann

发明人： Herbert Kuhlmann

IPC分类号： F04B15/02 ,  F04B53/16 ,  F01B29/08

CPC分类号： F04B15/023 ,  F04B53/162 ,  Y10S417/90

摘要： The present piston pump conveys concrete mixes through, for example, two pump cylinders located in a frame structure so that the cylinder axes extend substantially in parallel to each other. The pump cylinders cooperate with scavenging chambers also installed in said frame structure. To facilitate the assembly and disassembly of said pump cylinders in said frame structure without disassembling the entire frame structure, releasable, form locking connecting elements are operatively arranged between the frame structure and the scavenging chambers whereby the latter may be axially shifted in the frame structure for removing the pump cylinders from their sockets in the frame structure, for example, for maintenance work. Upon insertion of the cylinders into the frame structure, the connecting elements are tightened whereby the pump cylinders are held in position in the frame structure by the connecting means through said scavenging chambers.

摘要翻译： 本活塞泵通过例如位于框架结构中的两个泵缸输送混凝土混合物，使得气缸轴线基本上彼此平行地延伸。 泵缸与还安装在所述框架结构中的扫气室配合。 为了便于在所述框架结构中的所述泵缸的组装和拆卸，而不拆卸整个框架结构，可释放的，形成锁定连接元件可操作地布置在框架结构和扫气室之间，由此后者可在框架结构中轴向移动 将泵筒从其框架结构中的插座中移除，例如用于维护工作。 在将气缸插入框架结构中时，连接元件被紧固，从而泵缸通过连接装置通过扫气室而保持在框架结构中的适当位置。

公开(公告)号：US4232801A

公开(公告)日：1980-11-11

申请号：US104124

申请日：1979-12-17

申请人： George C. Chronis

发明人： George C. Chronis

IPC分类号： A47G19/18 ,  A47J47/01 ,  B67D5/42

CPC分类号： A47J47/01 ,  A47G19/18 ,  Y10S417/90

摘要： A dressing and food dispenser which is adjustable for quantity of portion dispensed, useable with hot or cold thermos dressing and food containers which may be equipped with agitators; utilizing dual rack gears to first apportion then dispense.

摘要翻译： 一种敷料和食物分配器，其可调节部分分配量，可用于热或冷热水器敷料和可装配有搅拌器的食品容器; 利用双机架齿轮首先分配然后分配。

公开(公告)号：US4180157A

公开(公告)日：1979-12-25

申请号：US891841

申请日：1978-03-30

申请人： Georges H. Bessette

发明人： Georges H. Bessette

IPC分类号： A01K1/01 ,  B65G25/10 ,  B65G25/04 ,  F04B21/04

CPC分类号： B65G25/10 ,  A01K1/0142 ,  Y10S417/90

摘要： An improved manure handling apparatus of the flow-through piston or plunger type. The apparatus has a passageway, vertically mounted in the floor of a barn with a plunger slidably mounted within the passageway. The plunger has a pair of swinging doors for opening or closing the passageway. First means move the plunger up and down within the passageway to push manure therethrough. Second means move the doors open or closed depending on the direction the plunger is moved.

摘要翻译： 一种改进的流通活塞或柱塞式粪便处理装置。 该装置具有垂直安装在谷仓地板中的通道，柱塞可滑动地安装在通道内。 柱塞具有用于打开或关闭通道的一对摆动门。 第一个意思是在通道内上下移动柱塞以推动粪便通过。 第二种方法是根据活塞的移动方向，将门打开或关闭。

公开(公告)号：US4178142A

公开(公告)日：1979-12-11

申请号：US817667

申请日：1977-07-21

申请人： Friedrich Schwing

发明人： Friedrich Schwing

IPC分类号： F04B7/00 ,  F04B15/02

CPC分类号： F04B7/0096 ,  Y10S417/90

摘要： In a double-cylinder pump for conveying cement, a distribution pipe is pivotally driven into alignment with each of the cylinders in turn. A wearing ring, which provides a seal between the end of the pipe and the cylinders, is mounted so as to be movable with respect to the end of the pipe so as to be able to assimilate wear.

摘要翻译： 在用于输送水泥的双缸泵中，分配管被轮转地驱动成与每个缸相对准。 在管的端部和气缸之间提供密封的耐磨环安装成能够相对于管的端部移动，以便能够吸收磨损。

公开(公告)号：US4105373A

公开(公告)日：1978-08-08

申请号：US744326

申请日：1976-11-23

申请人： Sergio Calzolari

发明人： Sergio Calzolari

IPC分类号： B28C7/16 ,  F01L25/06 ,  F04B7/02 ,  F04B9/117 ,  F04B9/10 ,  F04B15/02 ,  F04B35/02

CPC分类号： B28C7/163 ,  F01L25/063 ,  F04B7/0233 ,  F04B7/0241 ,  F04B9/1178 ,  Y10S417/90

摘要： A concrete pumping unit comprising a pair of parallel piston pumps, alternately placed in communication with a concrete supply conduit and with a concrete delivery pipe, through a single baffle blade valve and respectively driven by coaxial fluid pressure piston cylinders is disclosed. The cylinders are interlocked with each other by a pipe which places in communication the chambers of said fluid pressure cylinders, opposite to the chambers in which the pressurized fluid is supplied and discharged through orifices near the ends of said cylinders. A hydraulic circuit is provided for placing a fluid supply pump, in communication with the fluid pressure piston cylinder performing the suction phase, while the orifice of the other fluid pressure piston cylinder is placed in communication through another circuit including, a four-way changeover electro-valve and an actuator distributor device with a discharge reservoir. The said actuator-distributor device comprises two hydraulic pistons and cylinders, operating in phase opposition, the piston rods of which are linked to the ends of a rocking bar, the pivot pin of which is integral with the spindle of the baffle blade valve. The hydraulic piston cylinders have closed ends and are each provided near each of its ends with an orifice. First orifices, positioned near one of the two ends of said cylinders are interconnected by a pipe, while second orifices which are arranged near the other ends are respectively connected by a respective pipe to the four-way changeover electrovalve. The electrovalve is connected to a fluid pump and to a pipe to return the fluid into the supply reservoir of said pump. A third orifice is arranged in an intermediate position relative to the first and second orifice of each hydraulic pump cylinder, and is positioned just downstream of the piston when it is reaches the limit position near the respective first orifice of the respective cylinder. The third orifices are connected respectively with one of the orifices for the supply of the fluid into or for the discharge of fluid from the fluid pressure piston cylinders. From the pipe interlocking the first orifices of said hydraulic distribution piston pumps there is a branch pipe directly connected to the fluid reservoir.

公开(公告)号：US4094616A

公开(公告)日：1978-06-13

申请号：US763029

申请日：1977-01-27

申请人： Hyok Sang Lew

发明人： Hyok Sang Lew

IPC分类号： B01J19/00 ,  F04F1/06 ,  F04F1/10 ,  F04F1/14 ,  F04F1/18

CPC分类号： B01J19/0013 ,  F04F1/06 ,  B01J2219/0011 ,  B01J2219/00114 ,  B01J2219/00162 ,  B01J2219/00164 ,  Y10S417/90

摘要： A device using only steam to simultaneously heat and pump a liquid or a slurry to a high pressure is disclosed, which device does not employ any rotating or reciprocating mechanisms commonly employed in the conventional pumping machinery. The combined use of steam for the simultaneous heating and pumping enables the outstanding device to utilize 100 percent of the steam supplied to the device in either pumping or heating. The simple structure and operational principle of said device results in particularly low capital cost and trouble-free operation.

摘要翻译： 公开了仅使用蒸汽同时加热和将液体或浆料泵送到高压的装置，该装置不采用常规泵送机械中常用的任何旋转或往复运动机构。 结合使用蒸汽同时进行加热和泵送，使得杰出的设备能够在泵送或加热中利用供应给设备的100％的蒸汽。 所述装置的简单结构和操作原理导致特别低的资本成本和无故障的操作。

公开(公告)号：US4036564A

公开(公告)日：1977-07-19

申请号：US167959

申请日：1971-08-02

申请人： John A. Richards

发明人： John A. Richards

IPC分类号： F04B7/02 ,  F04B9/117 ,  F04B15/02 ,  F04B19/02 ,  F04B17/00

CPC分类号： F04B9/117 ,  F04B15/023 ,  F04B19/022 ,  F04B7/0291 ,  Y10S417/90

摘要： A concrete hopper has a plurality of arcuate channels in its bottom portion, preferably lined with a resilient material, such as rubber. The hopper includes a discharge end with discharge outlets formed therein in communication with the channels. A sliding sleeve-piston combination is associated with each channel for segregating and discharging a portion of the concrete through its associated discharge outlet. In other words, the sleeves are alternately filled by moving them through the hopper, and the pistons are operated to force the concrete out of the sleeves. A slide valve assembly including a discharge nozzle for connecting to a discharge hose and a pair of wear plates controls the discharge of pumped concrete from the discharge outlets. Hydraulic control means are included which automatically program the sequential operation of the sliding sleeve-piston combinations and the sliding valve. The pumping apparatus is designed to prevent the crushing of rock during shifting of the slide valve by being constructed so that the ends of the pistons and sleeves when fully extended lie in the same plane as the wear faces of the valve wear plates.

摘要翻译： 混凝土料斗在其底部具有多个弧形通道，优选内衬有弹性材料，例如橡胶。 料斗包括排放端，排出口形成在其中，与通道连通。 滑动套筒 - 活塞组合与每个通道相关联，用于通过其相关的排放出口分离和排出一部分混凝土。 换句话说，通过将它们移动通过料斗来交替地填充套筒，并且活塞被操作以迫使混凝土离开套筒。 包括用于连接到排出软管的排出喷嘴和一对耐磨板的滑阀组件控制从排出口排出抽水混凝土。 包括液压控制装置，其自动编程滑动套筒 - 活塞组合和滑动阀的顺序操作。 泵送装置被设计成防止在滑阀移动期间破碎岩石，使得当完全延伸的活塞和套筒的端部位于与阀耐磨板的磨损面相同的平面中时。