GB1376726A - Filters - Google Patents

Filters

Info

Publication number
GB1376726A
GB1376726A GB5275071A GB5275071A GB1376726A GB 1376726 A GB1376726 A GB 1376726A GB 5275071 A GB5275071 A GB 5275071A GB 5275071 A GB5275071 A GB 5275071A GB 1376726 A GB1376726 A GB 1376726A
Authority
GB
United Kingdom
Prior art keywords
containers
filter
liquid
casing
underdrain
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
GB5275071A
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
Priority to BE791236D priority Critical patent/BE791236A/en
Application filed by Individual filed Critical Individual
Priority to GB5275071A priority patent/GB1376726A/en
Priority to CA155,451A priority patent/CA1052287A/en
Priority to SE7214194A priority patent/SE379152B/xx
Priority to ZA727838A priority patent/ZA727838B/en
Priority to FR7239338A priority patent/FR2159319B1/fr
Priority to ES408350A priority patent/ES408350A1/en
Priority to AU48684/72A priority patent/AU465180B2/en
Priority to DE2255184A priority patent/DE2255184C3/en
Priority to NL7215362A priority patent/NL7215362A/xx
Priority to JP47113054A priority patent/JPS4858457A/ja
Priority to IT3584/72A priority patent/IT974581B/en
Publication of GB1376726A publication Critical patent/GB1376726A/en
Priority to US05/556,131 priority patent/US3984327A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/002—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in parallel connection
    • B01D24/004—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in parallel connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/14—Downward filtration, the container having distribution or collection headers or pervious conduits

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

1376726 Filter for liquid M A MAY 1 Nov 1972 [12 Nov 1971] 52750/71 Heading BID A filter comprises a group of open topped containers 4 each adapted to contain a bed of filtering material and spaced coaxially one above another, each container having an underdrain 6 near the bottom thereof communicating with an outlet 9 for filtered liquid, the assembly of containers being mounted in an outer casing 2 provided with an inlet 13 for liquid to be passed in parallel through the open tops of the containers for filtration. The containers are spaced from the casing by lugs 4a and separated from each other by lugs or feet 4c. The underdrain may have radial arms 7 provided with narrow slits 7a or arms made of gauze. An air vent pipe 13 removes trapped air. The filter material may be sand, which may be cleaned by backwashing. The filter may be for a swimming pool. The casing 2 may comprise a plurality of sections.
GB5275071A 1971-11-12 1971-11-12 Filters Expired GB1376726A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
BE791236D BE791236A (en) 1971-11-12 IMPROVEMENTS PROVIDED TO OR RELATING TO FILTERS
GB5275071A GB1376726A (en) 1971-11-12 1971-11-12 Filters
CA155,451A CA1052287A (en) 1971-11-12 1972-11-02 Stacked parallel filters
SE7214194A SE379152B (en) 1971-11-12 1972-11-02
ZA727838A ZA727838B (en) 1971-11-12 1972-11-06 Improvements in or relating to filters
FR7239338A FR2159319B1 (en) 1971-11-12 1972-11-07
ES408350A ES408350A1 (en) 1971-11-12 1972-11-08 Filters
AU48684/72A AU465180B2 (en) 1971-11-12 1972-11-09 Improvements in or relating to filters
DE2255184A DE2255184C3 (en) 1971-11-12 1972-11-10 filter
NL7215362A NL7215362A (en) 1971-11-12 1972-11-13
JP47113054A JPS4858457A (en) 1971-11-12 1972-11-13
IT3584/72A IT974581B (en) 1971-11-12 1972-11-13 IMPROVEMENTS IN OR RELATING TO FILTERS
US05/556,131 US3984327A (en) 1971-11-12 1975-03-06 Filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5275071A GB1376726A (en) 1971-11-12 1971-11-12 Filters

Publications (1)

Publication Number Publication Date
GB1376726A true GB1376726A (en) 1974-12-11

Family

ID=10465149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5275071A Expired GB1376726A (en) 1971-11-12 1971-11-12 Filters

Country Status (12)

Country Link
JP (1) JPS4858457A (en)
AU (1) AU465180B2 (en)
BE (1) BE791236A (en)
CA (1) CA1052287A (en)
DE (1) DE2255184C3 (en)
ES (1) ES408350A1 (en)
FR (1) FR2159319B1 (en)
GB (1) GB1376726A (en)
IT (1) IT974581B (en)
NL (1) NL7215362A (en)
SE (1) SE379152B (en)
ZA (1) ZA727838B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2128196A1 (en) * 1995-01-27 1999-05-01 Chamorro Sanchez Juan Matias Improvements made to filters for swimming pools and the like

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534430C2 (en) * 1975-08-01 1983-08-18 Lederle Gmbh Wasserversorgung Und Abwasser, 7803 Gundelfingen Water treatment device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2128196A1 (en) * 1995-01-27 1999-05-01 Chamorro Sanchez Juan Matias Improvements made to filters for swimming pools and the like

Also Published As

Publication number Publication date
AU4868472A (en) 1974-05-16
ZA727838B (en) 1973-07-25
DE2255184A1 (en) 1973-05-17
AU465180B2 (en) 1975-09-18
IT974581B (en) 1974-07-10
FR2159319A1 (en) 1973-06-22
CA1052287A (en) 1979-04-10
DE2255184C3 (en) 1980-11-27
NL7215362A (en) 1973-05-15
JPS4858457A (en) 1973-08-16
DE2255184B2 (en) 1980-04-03
BE791236A (en) 1973-03-01
FR2159319B1 (en) 1978-02-10
ES408350A1 (en) 1976-01-16
SE379152B (en) 1975-09-29

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years