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    Filter unit construction
    23.
    发明授权
    Filter unit construction 失效
    过滤器结构

    公开(公告)号：US2642187A

    公开(公告)日：1953-06-16

    申请号：US13805050

    申请日：1950-01-11

    Applicant: PUROLATOR PRODUCTS INC

    Inventor： EDWARD BELL ALBERT

    IPC: B01D27/06 ,  B01D29/11

    CPC classification number: B01D27/06 ,  B01D29/111 ,  B01D29/21 ,  B01D2201/0461

    Abstract: 689,661. Filters. PUROLATOR PRODUCTS, Inc. Dec. 8, 1950 [Jan. 11, 1950], No. 30087/50. Class 46 A replaceable filter unit comprises a pleated filter body of resin-impregnated paper arranged in tubular form and with the pleats extending substantially radially, end discs of resin-impregnated paper closing off opposite ends of the body, the discs being bonded, by a thermosetting resin adhesive similar to the resin impregnating the filter body, to opposite end edges of the pleats, and having turned-down rims bonded by thermosetting resin adhesive to folds of the pleats. Paper impregnated with phenol formaldehyde resin solution is formed into a tubular body with pleats 12, Fig. 2, extending radially and surrounded by a perforated cover 16. An upper end disc 18 and a lower 19 (not shown) each having a central hole of smaller diameter than the hole 13 extending through the body are coated on one side with a phenol formaldehyde resin cement layer 22. The upper and lower end edges of the pleats 12 are also coated with the same cement and the discs then applied thereto with heat and pressure. Pressure is simultaneously applied to the outer edges 26 of the discs (which extend beyond the periphery of the body) and to the inner edges 24 to turn them down over and secure them to the pleat folds 17 and 15 respectively as shown in Fig. 2. The hole 13 has within it a helical coil 14 (not shown) extending from top to bottom of the unit between the inner rims of the discs against which coil bear the inner longitudinal folds 15 of the pleats. The helical coil 14 may be replaced by a perforated metal cylinder 30, Fig. 3. Instead of the inner edges of the end discs 18a, 19a being turned down, guide rings 32, 31 respectively, held in place by the end discs, are provided. In a further modification, Fig. 4 (not shown), the arrangement is the same as in Fig. 2 except that the outer.edges of the discs are not turned down over the pleats 17 but merely project slightly beyond them radially.

    FLUID FILTER WITH A VALVE UNIT AND FILTER ELEMENT FOR USE IN THE FLUID FILTER
    28.
    发明申请
    FLUID FILTER WITH A VALVE UNIT AND FILTER ELEMENT FOR USE IN THE FLUID FILTER 审中-公开

    公开(公告)号：US20180326332A1

    公开(公告)日：2018-11-15

    申请号：US15755806

    申请日：2016-08-23

    Applicant: Hengst SE

    Inventor： Wilhelm ARDES

    IPC: B01D35/147 ,  B01D35/153 ,  B01D29/15 ,  F16K7/00

    CPC classification number: B01D35/147 ,  B01D29/15 ,  B01D35/153 ,  B01D2201/0415 ,  B01D2201/0461 ,  B01D2201/167 ,  B01D2201/291 ,  F01M11/03 ,  F02M37/22 ,  F16K7/00

    Abstract: A fluid filter comprising a housing, a fluid inlet and a fluid outlet, a filter element separating a raw side and a clean side from one another, and a valve unit. The valve unit comprises a valve plate arranged concentrically in the housing and having the shape of a circular ring disc, having valve openings and a flexible circular-ring-disc-shaped valve membrane arranged on the valve plate. The filter element comprises an axially protruding pressure-exerting ring shaped as a circumferential annular collar on the end face thereof facing the valve unit when installed. When installed in the housing, the filter element, with an end face of the pressure-exerting ring, presses the valve membrane axially onto the valve plate. The valve membrane, with the membrane region thereof pressed by the pressure-exerting ring onto the valve plate, forms a seal separating the raw side from the clean side of the fluid filter.

    FILTER ASSEMBLY AND RELIEF VALVE OF SAME
    29.
    发明申请
    FILTER ASSEMBLY AND RELIEF VALVE OF SAME 审中-公开

    公开(公告)号：US20180304179A1

    公开(公告)日：2018-10-25

    申请号：US15957005

    申请日：2018-04-19

    Applicant: Fram Group IP LLC

    Inventor： Daniel Auxter ,  Timothy L. Memmer

    IPC: B01D35/147 ,  B01D39/18 ,  B01D29/33 ,  B01D35/153

    CPC classification number: B01D35/1475 ,  B01D29/333 ,  B01D35/153 ,  B01D39/18 ,  B01D2201/0438 ,  B01D2201/0461 ,  B01D2201/12 ,  B01D2201/167 ,  B01D2201/291 ,  B01D2201/34

    Abstract: A filter assembly comprises a housing open at one end, a filter element therein, and a plate at the open end enclosing the filter element within the housing. The filter assembly further includes a fluid flow control assembly disposed between an end of the filter element and the plate. The fluid flow control assembly includes a check valve and a relief valve seat upon which the check valve abuts to prevent flow of fluid through a by-pass passage. The check valve is held in a sealed position against the relief valve seat by a biasing member retained by the relief valve seat. The force of the biasing member is overcome when pressure in the fluid acting upon the check valve reaches or exceeds a certain level, causing the check valve to move away from the relief valve seat, and permitting the fluid to flow through the relief valve assembly to an outlet opening of the filter assembly, bypassing the filter element of the filter assembly.

    LEAF FILTER SYSTEM AND REPLACEABLE FILTER LEAF APPARATUS
    30.
    发明申请
    LEAF FILTER SYSTEM AND REPLACEABLE FILTER LEAF APPARATUS 有权
    叶片过滤系统和可更换过滤器叶片设备

    公开(公告)号：US20120080371A1

    公开(公告)日：2012-04-05

    申请号：US13316752

    申请日：2011-12-12

    Applicant: William J. Grodecki

    Inventor： William J. Grodecki

    IPC: B01D29/00

    CPC classification number: B01D29/39 ,  B01D29/007 ,  B01D2201/0415 ,  B01D2201/043 ,  B01D2201/0461 ,  B01D2201/0469 ,  B01D2201/347 ,  Y10T29/49826

    Abstract: Filter and replaceable filter leaf apparatus are provided. The filter includes a housing defining a cavity having fluid inlet and outlet ports and a lid member with a manifold coupled to the outlet port and being adapted to conduct a fluid flow between the outlet port and a plurality of attachment areas. Replaceable filter leafs are selectively movable through an opening into the housing cavity and attachable with the manifold at the plurality of attachment areas. The replaceable filter leafs include a filter envelope consisting of a filter panel, a nozzle member on the filter panel and defining a passageway adjacent an opening in the filter envelope for conducting fluids therethrough. The nozzle member is selectively attachable onto the manifold of the polishing filter apparatus at any one of the plurality of attachment areas.

    Abstract translation: 提供过滤器和可更换的过滤叶装置。 过滤器包括限定具有流体入口和出口端口的空腔的壳体和具有联接到出口端口的歧管的盖构件，并且适于在出口和多个附接区域之间传导流体流。 可更换的过滤叶片可选择性地通过开口移动到壳体空腔中并且可与歧管连接在多个附接区域。 可替换的过滤叶片包括由过滤器面板，过滤器面板上的喷嘴构件组成的过滤器封套，并且限定与过滤器外壳中的开口相邻的通道，用于传导流体。 喷嘴构件可选择性地附接到多个附接区域中的任何一个处的抛光过滤装置的歧管上。

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