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    Gravitational flow separator of the multiple, apertured tube type for separating water from sand, gravel or the like
    51.
    发明授权
    Gravitational flow separator of the multiple, apertured tube type for separating water from sand, gravel or the like 失效
    用于从沙子，砾石等分离水的多重多孔管型重力流分离器

    公开(公告)号：US4176066A

    公开(公告)日：1979-11-27

    申请号：US922038

    申请日：1978-07-05

    Applicant: Albert H. Sloan

    Inventor： Albert H. Sloan

    IPC: B01D29/00 ,  B01D29/35 ,  B01D23/06

    CPC classification number: B01D29/356 ,  B01D29/23 ,  B01D29/44 ,  B01D29/52 ,  B01D29/94 ,  B01D2201/0453 ,  B01D2201/265

    Abstract: A dewatering separator device for separating solid particles such as sand, gravel, or the like from a liquid, such as water, and thereby preconditioning the water either for further filtering elsewhere or for permitting the water to be accepted in storm drains. The separator device is of the gravitational flow type and includes a plurality of vertically arranged tubes, each of which has small apertures in the form of thin slits in their side wall. The mixture of solid material, i.e., sand, gravel, and the like, and water is dumped through the top of the tubes, causing the heavier solid material to pass through the tubes where it is collected in a constituent trap, and from which the material is periodically discharged at one location. The water passes through the small slits in the sidewalls of the tubes and is discharged from the separator device separately from the solid material. The device has a movable support to render it portable for transport to different job sites.

    Abstract translation: 一种用于从诸如水的液体中分离固体颗粒如沙子，砾石等的脱水分离器装置，从而预处理水以进一步过滤其它地方或允许水在暴雨排水管中被接受。 分离装置是重力流型的，并且包括多个垂直排列的管，每个管在它们的侧壁上具有小狭缝形式的小孔。 固体材料，即沙子，砂砾等的混合物和水被倾倒穿过管的顶部，导致较重的固体材料通过管子，在那里它被收集在构成陷阱中， 材料在一个位置定期排放。 水通过管的侧壁中的小缝隙并与固体材料分离地从分离器装置排出。 该设备具有可移动支撑，使其可移动到运输到不同的工作现场。

    Filtering apparatus with modular filter elements
    52.
    发明授权
    Filtering apparatus with modular filter elements 失效
    具有模块滤清器元件的过滤装置

    公开(公告)号：US4105562A

    公开(公告)日：1978-08-08

    申请号：US794890

    申请日：1977-05-09

    Applicant: Stephen J. Kaplan ,  Rodolfo Gaba

    Inventor： Stephen J. Kaplan ,  Rodolfo Gaba

    IPC: B01D29/15 ,  B01D29/37 ,  B01D29/24

    CPC classification number: B01D29/15 ,  B01D2201/0446 ,  B01D2201/0453 ,  B01D2201/40

    Abstract: Filtering apparatus having a housing defining an inlet and an outlet. Disposed within the housing is a plurality of filter elements constructed in tubular form and held together as a bundle of such elements. The entire bundle of elements may be removed from or inserted into the housing as a unit. Each of the tubular filter elements has a threaded fitting at each end thereof with the threads on each of the ends being adapted for mating engagement with each other. In this manner a plurality of the filter elements may be assembled in tandem form by threaded engagement of the mating ends thereof to provide the desired filter area and size for any particular application without the necessity of custom designing filter elements for each housing or application. The mating threads are formed on dissimilar non-galling metals. A header assembly is utilized to threadably receive one end of a filter element while a base assembly is adapted to receive and retain the second ends of the filter assemblies thereby holding them in a proper position internally of the filter housing.

    Filter with rotating backwash selector
    53.
    发明授权
    Filter with rotating backwash selector 失效
    带旋转后视选择器的过滤器

    公开(公告)号：US3703465A

    公开(公告)日：1972-11-21

    申请号：US3703465D

    申请日：1970-12-14

    Applicant: DOVER CORP

    Inventor： REECE THOMAS L ,  BRYANT THURMAN E

    IPC: B01D29/11 ,  B01D35/12 ,  B01D29/38

    CPC classification number: B01D29/114 ,  B01D29/52 ,  B01D29/606 ,  B01D29/668 ,  B01D29/925 ,  B01D2201/0453

    Abstract: A filter assembly having a plurality of individual filter units, each including an impervious outer skirt surrounding an elongated filter member. A fluid-solid mixture is supplied to the filter units in a direction to flow radially inwardly through the filter member. Rotatable backwash arms are disposed adjacent the opposite ends of the filter units for sequentially and progressively permitting backwashing thereof. Tne backwash fluid flows radially outwardly through the filter members for removing the collected solid material. The backwash arms are connected to inlet and outlet pipes, with the inlet pipe being connected to an external source of separate backwash fluid. The backwash arms are rotatably driven by means of external drive system which includes disconnectible means for enabling one end of the filter housing to swingable move into an open position, carrying with it the backwash arm connected thereto, for permitting servicing of the individual filter units.

    Fluid filter with automatic cleaning device
    56.
    发明授权
    Fluid filter with automatic cleaning device 失效
    带自动清洗装置的流体过滤器

    公开(公告)号：US3380591A

    公开(公告)日：1968-04-30

    申请号：US55405466

    申请日：1966-05-31

    Applicant: RELLUMIT INTER S A R L

    Inventor： JACQUES MULLER

    IPC: B01D29/11 ,  B01D36/00 ,  C10G31/09

    CPC classification number: C10G31/09 ,  B01D29/114 ,  B01D29/46 ,  B01D29/52 ,  B01D29/668 ,  B01D29/846 ,  B01D36/001 ,  B01D36/003 ,  B01D2201/0453

    Abstract: 1,146,642. Fluid filter. J. MULLER. 13 June, 1966 [11 June, 1965], No. 26152/66. Headings BID and BIT. A filter for gas or liquid comprises a series of hollow edge filter elements 6 arranged in a circle and a hollow arm 11 rotatable to engage their inlet ports in succession, thereby permitting reverse flow through successive elements 6 to discharge line 16, the arm 11 being rotated by a hydraulic or pneumatic motor 20 driven by the incoming fluid to be filtered. Fluid enters at 23, passes through motor 20, down a nozzle 24 and upwards through preliminary metal cloth filter 25 to elements 6, which are enclosed in separate jackets 8. Motor 20 rotates arm 11 in steps through gears 21 and Maltese cross 22, and in Fig. 1 reverse flow through the element 6 aligned with arm 11 is caused by the outlet pressure of the filtrate in chamber 9. In Figs. 3-8, not shown, hollow arms on a common shaft engage both ends of successive elements, and reverse flow fluid is forced through the element by movement of a piston in a central cylinder. The upper side of the cylinder is filled with filtered fluid as the piston falls, with the arms stopped between two elements, and this fluid is forced through the next element as arm movement opens a port exposing the lower side of the piston to unfiltered fluid. The double piston of Fig. 8 permits a reverse flow pressure exceeding the supply pressure to be generated.

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