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    Method and apparatus for the automatic cleansing of the filter for a solvent,particularly in dry-cleaning plants
    91.
    发明授权
    Method and apparatus for the automatic cleansing of the filter for a solvent,particularly in dry-cleaning plants 失效
    用于溶剂的过滤器的自动清洁的方法和装置，特别是干燥清洁设备

    公开(公告)号：US3438497A

    公开(公告)日：1969-04-15

    申请号：US3438497D

    申请日：1967-06-08

    Applicant: MAESTRELLI GINO

    Inventor： MAESTRELLI GINO

    IPC: B01D29/15 ,  B01D29/52 ,  B01D33/00 ,  D06F43/08 ,  B01D33/02 ,  B01D25/34

    CPC classification number: D06F43/085 ,  B01D29/15 ,  B01D29/48 ,  B01D29/52 ,  B01D29/70 ,  B01D33/25 ,  B01D33/31 ,  B01D33/37 ,  B01D33/68 ,  B01D2201/0453 ,  B01D2201/0469

    Abstract: 1,181,273. Liquid filter. G. MAESTRELLI. 15 June, 1967 [15 Feb., 1967], No. 27618/67. Heading B1D. [Also in Divisions D1 and D2] A filter used in the solvent circuit of a coin-freed dry-cleaning machine comprises a plurality of filter elements D, made of wire wound on flat frames of moulded plastics, having lozenge-shaped cross-sections and being radially arranged about and supported by two or three rotatable hollow shafts F. After a washing cycle, during which solvent passes continually through the filter and back to the washing tub, the solvent flow is stopped and the shafts are rotated or arcuately reciprocated by a common motor (64), creating turbulence in the dirty solvent around the elements and thereby washing the used, absorbent, filter aid and solids therefrom. Periodically a sludge outlet (72) in the housing floor is opened. In Fig. 2 and Fig. 3 (not shown) the elements D intermesh and turbulence is concentrated in zone H. In Fig. 4 (not shown) the elements of the different assemblies do not intermesh and there is less turbulence. Within the limits of the filter housing, additional filter elements may be added to each ring of elements, and further complete rings of elements may be mounted axially above the first on each rotatable assembly. The ends of elements open into hollow radial arms of plastics spiders between which elements are clamped, the spiders (G) open into the interiors of shafts F and these discharge filtrate by outlets (70). Sludge discharged by outlet (72) passes to a distillation plant which recovers the filter aid.

    Coalescing and filtering apparatus
    93.
    发明授权
    Coalescing and filtering apparatus 失效
    聚结和过滤设备

    公开(公告)号：US3199676A

    公开(公告)日：1965-08-10

    申请号：US16343662

    申请日：1962-01-02

    Applicant: BRIGGS FILTRATION COMPANY

    Inventor： MAY CLIFFORD H

    IPC: B01D17/02 ,  B01D29/00 ,  B01D36/00

    CPC classification number: B01D36/003 ,  B01D17/0214 ,  B01D17/045 ,  B01D17/10 ,  B01D29/25 ,  B01D29/66 ,  B01D2201/0453 ,  Y10S210/05

    Abstract: 977,657. Oil filters; gravity separation. C. H. MAY. Dec. 14, 1962 [Jan. 2, 1962], No. 47326/62. Heading B1D. In a filter-separator for removing solid and liquid contaminants from oil, contaminated oil is fed in by inlet 12, Fig. 1, to a first chamber 14, and passes down passage 41 provided in filter unit 40, which is surrounded by canister 38 and is located vertically in second chamber 50. Oil and contaminating liquid, i.e. water, flow radially out of the filter unit, which traps solid contaminants, and coalesces the water. Canister 38, the surface of which is hydrophobic, retains the water and allows oil to flow through into chamber 50, to be removed by outlets 60, 62 located adjacent opposite ends of the filter unit. Coalesced water descends to the bottom of the annular space between 40 and 38 and drains through opening 66 under the action of gravity, assisted by vacuum produced in chamber 32 and sump 36 by means of Venturi nozzle 30 fitted in the oil inlet line 12. If the oil contains little or no water, oil will collect in sump 36 and will be recirculated by the Venturi nozzle to chamber 14. Discharge of water is controlled by solenoid valve 82 actuated by conductors 84, 86. Alternatively a float valve may be used. A preferred filter unit comprises a perforated copper-silicon tube 42 surrounded by layers of moulded fibre-glass and acetate felt, contained by a knitted cotton sleeve. Canister 38 may comprise a 100-mesh screen of nickel alloy, rendered hydrophobic by a coating of polytetrafluoroethylene, and retained by an expanded aluminium mesh. Baffles 56 and 58 are provided at each end of canister 38 adjacent oil outlets 60, 62 to prevent coalesced water being drawn into the oil. A plurality of filter units may be provided in chamber 50, each receiving a flow of oil from chamber 14. Specification 821,877 is referred to.

    FILTER ELEMENT
    98.
    发明公开
    FILTER ELEMENT 审中-公开

    公开(公告)号：US20240299867A1

    公开(公告)日：2024-09-12

    申请号：US18178615

    申请日：2023-03-06

    Applicant: ZUXING CHEN

    Inventor： ZUXING CHEN

    IPC: B01D29/21 ,  B01D35/30

    CPC classification number: B01D29/21 ,  B01D35/30 ,  B01D2201/0415 ,  B01D2201/0453

    Abstract: A filter element, comprising two sets of cover plates, and the cover plates are provided with water inlets; a plurality of first through holes and second through holes are respectively distributed on outside of a first fixing sleeve and a second fixing sleeve, the first fixing sleeve and the second fixing sleeve are detachably connected between the cover plates, the first fixing sleeve is composed of a plurality of first fixing sleeve components, and the first fixing sleeve components are detachably connected, an accommodating cavity is formed between the first and second fixing sleeve; folded filter paper is arranged inside the accommodating cavity. In this technical solution, the first fixing sleeve, the second fixing sleeve and the cover plates are detachable structures, which can reduce the transportation volume and save transportation and storage costs; users can easily replace the filter element, and the use cost is low.

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