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    Single endless screen for extracting liquid from a slurry
    22.
    发明授权
    Single endless screen for extracting liquid from a slurry 失效
    用于从浆料中提取液体的单一无限丝网

    公开(公告)号：US5041222A

    公开(公告)日：1991-08-20

    申请号：US416498

    申请日：1989-10-03

    Applicant: Michael S. O'Dell

    Inventor： Michael S. O'Dell

    IPC: B01D33/04

    CPC classification number: B01D33/04 ,  B01D2201/204

    Abstract: Apparatus for extracting liquid from a slurry containing fine solids and liquid comprising an endless screen formed of woven monofilaments of thermoplastic material so as to define a multiplicity of small openings extending between opposite sides thereof and a supporting structure for supporting the endless screen for movement through initial and intermediate operative run portions along an underside thereof in such a way as to present an upper operative side thereof for the accumulation of solids thereon by the passage of liquid through the openings thereof. The screen supporting structure comprises a multiplicity of fixed closely spaced parallel bars formed of material having favorable wear and coefficient of friction characteristics with respect to the thermoplastic material of the endless screen. Each of the parallel bars has (1) an upwardly facing rounded surface engageable with the underside of the endless screen so as to support the same for movement thereover and (2) side surfaces extending downwardly from the rounded surface. The spacing between adjacent side surfaces of adjacent bars defines slots of a width sufficient to allow the passage of enough liquid therethrough to form a solids layer and solids cake without allowing the underside of the initial and intermediate operative run portions to enter the slots appreciably below the upwardly facing rounded surfaces of engagement.

    Abstract translation: 用于从含有细固体和液体的浆液中提取液体的装置，包括由热塑性材料的编织单丝形成的环形丝网，以便限定在其相对侧之间延伸的多个小孔，以及支撑结构，用于支撑环形丝网以通过初始 以及沿着其下侧的中间操作运行部分，以便通过液体通过其开口的方式呈现其上操作侧，用于在其上堆积固体。 屏幕支撑结构包括多个固定的紧密间隔的平行条，其由具有相对于环形丝网的热塑性材料的良好磨损和摩擦系数特性的材料形成。 每个平行杆具有（1）向上的圆形表面，其可与环形丝网的下侧接合，以便支撑它们在其上移动，以及（2）从圆形表面向下延伸的侧表面。 相邻条的相邻侧表面之间的间隔限定足够宽度的槽，以允许足够的液体通过其中以形成固体层和固体饼，而不允许初始和中间操作段的下侧进入槽内， 面向上的圆形接合表面。

    Multiple lubricating oil filter for internal combustion engines, with a member for monitoring the degree of clogging of the filtration surface
    23.
    发明授权
    Multiple lubricating oil filter for internal combustion engines, with a member for monitoring the degree of clogging of the filtration surface 失效
    用于内燃机的多个润滑油过滤器，具有用于监测过滤表面堵塞程度的构件

    公开(公告)号：US4885082A

    公开(公告)日：1989-12-05

    申请号：US179872

    申请日：1988-04-11

    Applicant: Angelo Cantoni

    Inventor： Angelo Cantoni

    IPC: B01D27/10

    CPC classification number: B01D27/101 ,  B01D2201/204 ,  B01D2201/208 ,  F01M2001/1057

    Abstract: The filter according to the invention comprises an outer casing which is provided with an end cover having a connection to the engine lubrication circuit. The outer casing houses a first filter pack or element positioned to be passed through by the engine lubricating oil. A pressure relief valve, which allows the oil to bypass the first filter pack or element in the case of excessive pressure drop, is provided. The pressure relief valve cooperates with a piston element associated with an electrically conducting spring to establish electrical connection between an electrical contact and a part of the filter casing. A second filter pack or element is positioned to filter part of the oil which the pressure relief valve allows to pass when a high pressure drop in the oil flow through the first filter pack or element occurs.

    Vacuum filtration bench
    25.
    发明授权
    Vacuum filtration bench 失效
    真空过滤台

    公开(公告)号：US4415449A

    公开(公告)日：1983-11-15

    申请号：US418131

    申请日：1982-09-15

    Applicant: Wolfgang Hein

    Inventor： Wolfgang Hein

    IPC: B01D29/00 ,  B01D29/52 ,  B01D35/00 ,  B01D23/26

    CPC classification number: B01D29/52 ,  B01D35/00 ,  B01D2201/204

    Abstract: A bench for vacuum filtration of fluid samples includes a stand having at least one aperture for receiving and supporting a filter device. A vacuum distribution conduit is rigidly mounted on the stand and a vacuum branch conduit extends between the vacuum distribution conduit and the filter device. An isolating valve is provided in the vacuum branch conduit.

    Abstract translation: 用于流体样品的真空过滤的台架包括具有用于接收和支撑过滤装置的至少一个孔的支架。 真空分配导管刚性地安装在支架上，真空分支导管在真空分配导管和过滤装置之间延伸。 隔离阀设置在真空分支管道中。

    Travelling sheet, flat-bed vacuum filter and method
    26.
    发明授权
    Travelling sheet, flat-bed vacuum filter and method 失效
    旅行床，平床真空过滤器和方法

    公开(公告)号：US4267060A

    公开(公告)日：1981-05-12

    申请号：US123101

    申请日：1980-02-19

    Applicant: Peter A. Miller

    Inventor： Peter A. Miller

    IPC: B01D29/09 ,  B01D29/19 ,  B01D29/02 ,  B01D29/36

    CPC classification number: B01D29/096 ,  B01D29/19 ,  B01D2201/204

    Abstract: To seal the top cover of a vacuum travelling web filter, the top cover is lowered, by gravity, with a depending rim fitting against an upstanding rim of a filtrate chamber pan; the contaminant chamber above the filter web is closed off, and supply of filtrate is inhibited. Upon starting of the pump, a vacuum will result within the two chambers, drawing the cover tightly against the filtrate pan and, when a sufficient vacuum has been reached indicative of sealing engagement, supply of contaminant can be opened to draw contaminant into the upper chamber. As the filter cake builds up, further change in pressure in the contaminant chamber will result which, when a predetermined operating pressure level is reached, causes interruption of supply of contaminated fluid, and opening of an air vent valve to dry the resulting filter cake. Sealing fluid can be introduced between the engaging rims of the cover and the filtrate holding pan, between which rims the filter web is interposed, for example by introducing filtered fluid into a groove between the rims, or by introducing an inert gas. Preferably, filtered fluid is used which will be drawn back to the pump upon pump operation. A bypass line of filtered fluid to the pump prevents dry running thereof.

    Abstract translation: 为了密封真空行进网状过滤器的顶盖，顶盖通过重力降低，其具有靠近滤液室盘的直立边缘的悬垂边缘; 过滤网上方的污染物室被封闭，滤液的供给被抑制。 在启动泵时，将在两个室内产生真空，将盖子紧紧靠在滤液盘上，并且当达到足够的真空以表示密封接合时，可以打开污染物的供应以将污染物吸入上部室 。 当滤饼积聚时，污染物室中的压力进一步变化将导致当达到预定操作压力水平时，导致污染流体的供应中断，以及打开排气阀以干燥所得到的滤饼。 密封流体可以被引入盖子的接合边缘和滤液保持盘之间，例如通过将过滤的流体引入到边缘之间的沟槽中，或者通过引入惰性气体，过滤网被插入在该过滤网之间。 优选地，使用过滤的流体，其将在泵操作时被抽回到泵中。 过滤流体到泵的旁路管路防止其干燥运行。

    Vacuum belt filters
    27.
    发明授权
    Vacuum belt filters 失效
    真空皮带过滤器

    公开(公告)号：US4037338A

    公开(公告)日：1977-07-26

    申请号：US643060

    申请日：1975-12-22

    Applicant: Sylvain Dominique Daniel Leonce Berline

    Inventor： Sylvain Dominique Daniel Leonce Berline

    IPC: B01D33/00 ,  B01D33/04

    CPC classification number: B01D33/04 ,  B01D2201/204

    Abstract: This invention relates to improvements in or relating to vacuum belt filters. It relates further to suction boxes for such filters and to a method of operation of the filters. More particularly, the invention relates to the supporting of the belt of the filter about the suction box so as to minimize drag of the belt and to minimize friction between the belt and the suction box and still seal the suction box. This is accomplished by means of conduits that have deformable walls and are located along the edges of the suction boxes, fluid support cushions being formed in the conduits. This is also accomplished by controlling the fluid support cushion according to the drag on the suction box, the suction pressure in the suction box and the rate of flow of fluid into the conduits to form the support cushion.

    Abstract translation: 本发明涉及真空带式过滤器的改进或涉及真空带式过滤器。 它进一步涉及用于这种过滤器的抽吸箱以及过滤器的操作方法。 更具体地说，本发明涉及围绕抽吸箱对过滤器带的支撑，以便最小化带的阻力并使带和抽吸箱之间的摩擦最小化并且仍然密封吸入箱。 这通过具有可变形壁并且沿着吸气箱的边缘定位的管道来实现，流体支撑衬垫形成在管道中。 这也可以通过根据抽吸箱上的阻力，吸入箱中的吸入压力和流体进入导管的流速来控制流体支撑垫来形成支撑垫。

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