GB1104231A - Improvements in or relating to filters - Google Patents

Improvements in or relating to filters

Info

Publication number
GB1104231A
GB1104231A GB23026/64A GB2302664A GB1104231A GB 1104231 A GB1104231 A GB 1104231A GB 23026/64 A GB23026/64 A GB 23026/64A GB 2302664 A GB2302664 A GB 2302664A GB 1104231 A GB1104231 A GB 1104231A
Authority
GB
United Kingdom
Prior art keywords
filter
microporous
plastics material
candles
tubular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB23026/64A
Inventor
Joseph Clegg
Arthur Balkham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Porous Plastics Ltd
Original Assignee
Porous Plastics Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Porous Plastics Ltd filed Critical Porous Plastics Ltd
Priority to GB23026/64A priority Critical patent/GB1104231A/en
Priority to DEP36917A priority patent/DE1257743B/en
Priority to FR19269A priority patent/FR1438684A/en
Publication of GB1104231A publication Critical patent/GB1104231A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/107—Organic support material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/043—Filter tubes connected to plates
    • B01D2201/0446—Filter tubes connected to plates suspended from plates at the upper side of the filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/34—Seals or gaskets for filtering elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

1,104,231. Filters for liquids. POROUS PLASTICS Ltd. 1 June, 1965 [3 June, 1964], No. 23026/64. Heading BID. A filter includes a foraminous tubular reinforcing core formed by sintering a coarsegrained plastics material, and, separate from but fitting closely about the reinforcing core, a tubular filter septum of microporous plastics material. As shown, for a swimming pool filter, a reinforcing core 11 is made by packing coarse grains (themselves microporous) of polyethylene around a mandrel in an iron tube forming a mould. The assembly is heated to sinter the plastics material. The hollow cylindrical core is then removed and fitted into a tubular septum 10 of microporous highdensity polyethylene having one end closed by a disc 12 secured by adhesive and the other end provided with an adhered flange 14 into which a disc of wire gauze 15 is inserted. Several such filter candles are assembled in holes, in a header plate 16, each occupied by a grooved rubber grommet 17. In operation, unfiltered liquid is pumped into casing 20 to flow inwards through the candles, and filtrate flows to use through a pipe (not shown) connected to cover 21. For backwashing, unfiltered liquid is pumped along part of the outlet pipe, including the connection with cover 21. and outwards through the filter candles. This liquid, plus residue, is discharged along part of the inlet pipe and to a drain connection. Appropriate isolating valves are provided. Filter aid such as kieselguhr may be applied. Instead of polyethylene grains, polyvinyl chloride grains may be used for the core 11.
GB23026/64A 1964-06-03 1964-06-03 Improvements in or relating to filters Expired GB1104231A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB23026/64A GB1104231A (en) 1964-06-03 1964-06-03 Improvements in or relating to filters
DEP36917A DE1257743B (en) 1964-06-03 1965-05-28 Support tube for a membrane
FR19269A FR1438684A (en) 1964-06-03 1965-06-02 Advanced filter with porous filter element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23026/64A GB1104231A (en) 1964-06-03 1964-06-03 Improvements in or relating to filters

Publications (1)

Publication Number Publication Date
GB1104231A true GB1104231A (en) 1968-02-21

Family

ID=10188918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23026/64A Expired GB1104231A (en) 1964-06-03 1964-06-03 Improvements in or relating to filters

Country Status (3)

Country Link
DE (1) DE1257743B (en)
FR (1) FR1438684A (en)
GB (1) GB1104231A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10551402B2 (en) 2016-06-22 2020-02-04 Cnh Industrial America Llc Air sensor system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951749A (en) * 1989-05-23 1990-08-28 Schlumberger Technology Corporation Earth formation sampling and testing method and apparatus with improved filter means
WO1993022024A1 (en) * 1992-04-30 1993-11-11 Herding Ag Oil filter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB916898A (en) * 1960-09-28 1963-01-30 Millipore Filter Corp High pressure filter
DE1153347B (en) * 1961-09-16 1963-08-29 Erich A F Dinglinger Dr Ing Support for cylindrical sintered metal bodies in filter devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10551402B2 (en) 2016-06-22 2020-02-04 Cnh Industrial America Llc Air sensor system

Also Published As

Publication number Publication date
DE1257743B (en) 1968-01-04
FR1438684A (en) 1966-05-13

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