GB1398284A - Self cleaning diaphragm operated filter - Google Patents

Self cleaning diaphragm operated filter

Info

Publication number
GB1398284A
GB1398284A GB1694272A GB1694272A GB1398284A GB 1398284 A GB1398284 A GB 1398284A GB 1694272 A GB1694272 A GB 1694272A GB 1694272 A GB1694272 A GB 1694272A GB 1398284 A GB1398284 A GB 1398284A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
filter
reverse flow
filter medium
inlet
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
GB1694272A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1694272A priority Critical patent/GB1398284A/en
Publication of GB1398284A publication Critical patent/GB1398284A/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
    • B01D29/01—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 flat filtering elements
    • B01D29/05—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 flat filtering elements supported
    • B01D29/07—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 flat filtering elements supported with corrugated, folded or wound filtering sheets
    • B01D29/071—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 flat filtering elements supported with corrugated, folded or wound filtering sheets with curved 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/663—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps by using membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

1398284 Filter with reverse flow cleaning W LUK-PASZYC 6 July 1973 [12 April 1972] 16942/72 Heading B1D A filter comprises respective impervious and perforate dished members 2, 1, bolted together to enclose a space divided by flexible diaphragm 3, member 1 being covered by filter medium 5 through which liquid normally flows inwards, to outlet 9 which leads to a suction pump, periodic delivery of compressed air or water through inlet 10 advancing the diaphragm from the position shown, whereupon peripheral lip 11 closes the outlet and further advance of the diaphragm forces the filtrate enclosed between member 1 and the diaphragm in reverse flow through the filter medium. Filter medium 5 may be nylon cloth removably secured by ring 4 which is tied by rope 6 to bolts 7, 8. The diaphragm is rubber or neoprene and moulded so as to assume the form shown in the absence of fluid pressure at inlet 10. The filter is used immersed in a tank of recirculating grinding machine-coolant. Reverse flow cleaning lasts only, a few seconds and is controlled by a timer and solenoid valve.
GB1694272A 1972-04-12 1972-04-12 Self cleaning diaphragm operated filter Expired GB1398284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1694272A GB1398284A (en) 1972-04-12 1972-04-12 Self cleaning diaphragm operated filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1694272A GB1398284A (en) 1972-04-12 1972-04-12 Self cleaning diaphragm operated filter

Publications (1)

Publication Number Publication Date
GB1398284A true GB1398284A (en) 1975-06-18

Family

ID=10086444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1694272A Expired GB1398284A (en) 1972-04-12 1972-04-12 Self cleaning diaphragm operated filter

Country Status (1)

Country Link
GB (1) GB1398284A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0204836A1 (en) * 1984-12-11 1986-12-17 Richard E Pabst Flow through filter with backflush clearing capability.
EP0218644A1 (en) * 1985-04-10 1987-04-22 Memtec Ltd Variable volume filter or concentrator.
WO1991013673A1 (en) * 1990-03-16 1991-09-19 John Reipur A method and apparatus for filtering a fluid

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0204836A1 (en) * 1984-12-11 1986-12-17 Richard E Pabst Flow through filter with backflush clearing capability.
EP0204836A4 (en) * 1984-12-11 1987-04-29 Richard E Pabst Flow through filter with backflush clearing capability.
EP0218644A1 (en) * 1985-04-10 1987-04-22 Memtec Ltd Variable volume filter or concentrator.
EP0218644A4 (en) * 1985-04-10 1987-08-10 Memtec Ltd Variable volume filter or concentrator.
US4793932A (en) * 1985-04-10 1988-12-27 Memtec Limited Variable volume filter or concentrator
WO1991013673A1 (en) * 1990-03-16 1991-09-19 John Reipur A method and apparatus for filtering a fluid
US5234605A (en) * 1990-03-16 1993-08-10 John Reipur Filter backwashing system using moveable member responsive to closing of filter outlet

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees
728C Application made for restoration (sect. 28/1977)
728P Application not proceeded with (sect. 28/1977)