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    High pressure hydraulic system and self-cleaning filter assembly therefor
    71.
    发明授权
    High pressure hydraulic system and self-cleaning filter assembly therefor 失效
    高压液压系统和自清洁过滤器组件

    公开(公告)号：US4469594A

    公开(公告)日：1984-09-04

    申请号：US440981

    申请日：1982-11-12

    Applicant: Rainer Poetter

    Inventor： Rainer Poetter

    IPC: E02F9/22 ,  B01D35/12 ,  B01D36/02 ,  F15B21/04 ,  B01D35/02 ,  B01D35/22

    CPC classification number: B01D36/02 ,  B01D35/12 ,  B01D2201/02

    Abstract: A hydraulically operated mining shovel comprises a stick which is pivotable in opposite directions by a pair of extendible/retractable double-acting hydraulic cylinders. A high-pressure hydraulic system is provided for operating and controlling the cylinders and comprises a fluid reservoir, a pump for supplying high-pressure hydraulic fluid, and a selector valve located between the pump and the cylinders and between the cylinders and the reservoir. A main filter, removable for cleaning, is located in a fluid return line leading to the reservoir. A self-cleaning filter assembly is connected in each fluid supply/return line connected between the selector valve and a hydraulic cylinder. Each filter assembly comprises a housing in which a pair of cone-shaped fine-mesh filters are connected in parallel with each other and in parallel with an adjustably one-way check valve. In operation, all of the pressurized fluid supplied from the selector valve through a filter assembly to its associated cylinder passes through the pair of filters, wherein any fluid contaminants are trapped, and none flows through the check valve. However, of the low-pressure back-flowing fluid returning from a cylinder through an associated filter assembly to the selector valve, the major portion (about 70 percent) passes through the one-way check valve, and the remainder passes through the pair of filters to prevent collapse of the filters and to back-flush any contaminants trapped therein back into the main filter for subsequent removal from the system.

    Abstract translation: 一种液压操作的挖掘铲斗包括一个可通过一对可伸缩的双作用液压缸在相反方向上枢转的杆。 提供用于操作和控制气缸的高压液压系统，包括流体储存器，用于供应高压液压流体的泵和位于泵和气缸之间以及气缸和储存器之间的选择阀。 主要的过滤器可拆卸清洁，位于通往储存器的流体回流管路中。 在连接在选择阀和液压缸之间的每个流体供应/返回管路中连接有一个自清洁过滤器组件。 每个过滤器组件包括壳体，其中一对锥形细网过滤器彼此并联并且与可调节的单向止回阀并联连接。 在操作中，从选择阀通过过滤器组件供应到其相关气缸的所有加压流体都通过一对过滤器，其中任何流体污染物被捕获，并且没有流过止回阀。 然而，从气缸通过相关过滤器组件返回到选择阀的低压回流流体中，主要部分（约70％）通过单向止回阀，其余部分通过一对 过滤器以防止过滤器的塌陷并且将其中捕获的任何污染物反冲洗回到主过滤器中，以便随后从系统中移出。

    Filter for blood
    72.
    发明授权
    Filter for blood 失效
    过滤血液

    公开(公告)号：US4087363A

    公开(公告)日：1978-05-02

    申请号：US669052

    申请日：1976-03-22

    Applicant: Friedrich Rosemeyer ,  Wolfram Hubert Walker ,  Karl-Heinz Ganshirt ,  Heinz Wendt

    Inventor： Friedrich Rosemeyer ,  Wolfram Hubert Walker ,  Karl-Heinz Ganshirt ,  Heinz Wendt

    IPC: A61M5/165 ,  B01D27/14 ,  B01D25/04 ,  B01D39/16

    CPC classification number: A61M5/165 ,  B01D27/148 ,  B01D2201/02

    Abstract: A filter for blood comprising a pair of members together forming a housing with an inlet and an outlet, an aperture diaphragm between said members across the interior of said housing and dividing said housing into a filter chamber and a drip chamber respectively communicating with said inlet and outlet, means forming a hermetic and sterile seal between said members, and a plurality of filter elements serially disposed within said housing so that blood being filtered therethrough must pass in sequence through said inlet, through all of said filter elements, through the aperture of said diaphragm and then through said outlet. Preferably at least four woven nylon screens are employed as the filter elements in a nylon housing, the filter elements in the direction of flow successively having screen sizes of about 200 .mu., 50 .mu., 20 .mu. and 10 .mu..

    Abstract translation: 一种用于血液的过滤器，包括一对构件，一起形成具有入口和出口的壳体，所述构件之间的孔隔膜穿过所述壳体的内部，并将所述壳体分成过滤室和分别与所述入口和/ 出口，意味着在所述构件之间形成密封和无菌密封，以及串联地设置在所述壳体内的多个过滤元件，使得通过其中过滤的血液必须依次穿过所述入口穿过所有所述过滤元件，穿过所述的所述过滤元件的所述孔 隔膜，然后通过所述出口。 优选地，使用至少四个编织尼龙筛网作为尼龙壳体中的过滤元件，所述过滤元件沿着流动方向依次具有约200微米，50微米，20微米和10微米的筛网尺寸。

    Traps for sinks, laundry tubs and the like
    74.
    发明授权
    Traps for sinks, laundry tubs and the like 失效
    SINKS，洗衣房和类似的旅行

    公开(公告)号：US4032455A

    公开(公告)日：1977-06-28

    申请号：US696071

    申请日：1976-06-14

    Applicant: Howard D. Kale

    Inventor： Howard D. Kale

    IPC: B01D29/11 ,  B01D35/02 ,  B01D35/28 ,  E03C1/282 ,  B01D29/36

    CPC classification number: E03C1/282 ,  B01D29/11 ,  B01D35/02 ,  B01D35/28 ,  B01D2201/02 ,  Y10S4/14 ,  Y10T137/4613

    Abstract: A trap for use with waste water lines for sinks, laundry tubs and the like has a dip portion for retaining liquids to prevent the reverse flow of noxious gases. The lower wall of the dip portion has an opening which is smaller than the interior diameter of the trap and which is adapted to receive a closure plug. A plug for closing the opening is arranged to support a blocking member in the interior of the dip portion of the trap. The blocking member comprises a plurality of flexible fingers which are held in spaced apart relationship on a toroid such that the exterior surfaces of the fingers taper outwardly from the supporting toroid to dimension such that the fingers in combination form a circle which approximates the interior diameter of the trap and the fingers then taper inwardly until the tips of the fingers in combination define a circle of approximately the same dimension as the toroid. The flexible fingers permit the blocking member to be inserted in the trap through the relatively small opening in the dip portion. When in place within the trap, the fingers flex outwardly and the blocking member substantially covers the cross section of the trap in a plane perpendicular to the direction of liquid flow.

    Screening and comminuting device
    76.
    发明授权
    Screening and comminuting device 失效
    筛选和粉碎设备

    公开(公告)号：US3893923A

    公开(公告)日：1975-07-08

    申请号：US47268174

    申请日：1974-05-23

    Applicant: RUDZINSKI STANLEY P

    Inventor： RUDZINSKI STANLEY P

    IPC: B01D29/46 ,  B01D33/00 ,  B01D33/067 ,  E02B8/02

    CPC classification number: E02B8/026 ,  B01D29/46 ,  B01D33/067 ,  B01D33/073 ,  B01D33/27 ,  B01D33/275 ,  B01D33/466 ,  B01D33/58 ,  B01D33/725 ,  B01D33/801 ,  B01D2201/02 ,  B01D2201/282

    Abstract: An improvement in the positioning and cutting of a comminuting and screening device of the type having a rotary screen formed of co-axial rings with outwardly directed cutters which coact with stationary cutters supported on a flow directing enclosure which is positioned in a flow channel by eccentric locks pivoted on the enclosure and frictionally engaging sides of the flow channel, the stationary cutters having a cutting edge coacting with a cutting edge on the end of the screen cutters and a cutting edge extending between the rings, the space between adjacent rings increasing from upstream to downstream sides of the rings.

    Abstract translation: 具有旋转筛网的定型和切割的改进，其具有由具有向外定向的切割器的同轴环形成的旋转筛网，该切割器与支撑在流动引导外壳上的固定切割器共同作用，该引导外壳通过偏心 锁定件枢转在外壳上并且与流动通道的摩擦接合的侧面上，固定切割器具有与丝网切割器端部上的切割边缘共同作用的切割边缘和在环之间延伸的切割边缘，相邻环之间的空间从上游 到环的下游侧。

    Sintered powdered metal filter
    78.
    发明授权
    Sintered powdered metal filter 失效
    烧结金属过滤器

    公开(公告)号：US3746642A

    公开(公告)日：1973-07-17

    申请号：US3746642D

    申请日：1971-04-20

    Applicant: MINNESOTA MINING & MFG

    Inventor： BERGSTROM T

    IPC: B01D29/33 ,  B01D39/20

    CPC classification number: B01D29/33 ,  B01D29/52 ,  B01D2201/02 ,  B01D2201/0438 ,  B01D2201/46

    Abstract: A unitary uniformly porous filter structure constructed entirely of shaped sintered powdered metal having increased filtering capacity and useful for filtering molten thermoplastic resin, e.g., as it is forced through a spinnerette head. The filter has a planar base portion having hollow protuberances extending from one major surface thereof with cavities of the protuberances extending to the opposite major surface, providing a drainage path. The filter structure is one piece of metal, i.e., the protuberances and the base have continuity and identity of composition.

    Abstract translation: 整体均匀的多孔过滤器结构完全由具有增加的过滤能力的成形烧结粉末金属构成，并且可用于过滤熔融热塑性树脂，例如当其被迫通过喷丝头时。 过滤器具有平坦的基部，其具有从其一个主表面延伸的中空突起，突出部的空腔延伸到相对的主表面，提供排水路径。 过滤器结构是一片金属，即，突起和基底具有组成的连续性和身份。

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