GB1351752A - Filtration apparatus - Google Patents

Filtration apparatus

Info

Publication number
GB1351752A
GB1351752A GB2918170A GB1351752DA GB1351752A GB 1351752 A GB1351752 A GB 1351752A GB 2918170 A GB2918170 A GB 2918170A GB 1351752D A GB1351752D A GB 1351752DA GB 1351752 A GB1351752 A GB 1351752A
Authority
GB
United Kingdom
Prior art keywords
support member
holder
sealing means
filter element
plastics
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
GB2918170A
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.)
Balston Ltd W R
Original Assignee
Balston Ltd W R
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 Balston Ltd W R filed Critical Balston Ltd W R
Publication of GB1351752A publication Critical patent/GB1351752A/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
    • 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
    • B01D29/085—Funnel filters; Holders therefor

Abstract

1351752 Laboratory filter apparatus W & R BALSTON Ltd 15 June 1971 [16 June 1970] 29181/70 Headings B1D and BIT A unitary disposable laboratory filter apparatus 10 comprises a filter element 13, e.g. of glass fibre, a moulded plastics tubular holder 14, a moulded plastics support member in the form of a perforated disc 11 (Figs. 1 and 3a), 41 (Fig. 2) which extends across the inside of the holder to support the filter element, and sealing means which interlocks with the support member. to maintain pressure on the outer periphery of the filter element to lock it in place adjacent the support member. In Fig. 1, the sealing means is a plastics ring 18 which locks in a groove 17 in the holder. In Fig. 2, the sealing means is formed by annular shoulders 40 and 43 between which the filter element 13 and support member 41 are snap fitted. In Fig. 3a, the sealing means is a hollow tube 30 which locks by head 31 and annular recess 32 into the tubular holder. The use of the filter apparatus for filtering both liquids and air is described. The plastics material of which the holder and support member are formed is, suitably, polypropylene.
GB2918170A 1970-06-16 1970-06-16 Filtration apparatus Expired GB1351752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2918170 1970-06-16

Publications (1)

Publication Number Publication Date
GB1351752A true GB1351752A (en) 1974-05-01

Family

ID=10287443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2918170A Expired GB1351752A (en) 1970-06-16 1970-06-16 Filtration apparatus

Country Status (1)

Country Link
GB (1) GB1351752A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506021A1 (en) * 1981-05-13 1982-11-19 Draegerwerk Ag INDICATOR TUBE WITH FILTER
US4487114A (en) * 1980-05-27 1984-12-11 Abdenour Joseph D Brewing improvement
GB2210805A (en) * 1987-12-15 1989-06-21 Sev Trent Water Authority Filtering and filters
GB2217223A (en) * 1988-04-09 1989-10-25 Brian William Garn Vacuum filter
GB2253573A (en) * 1991-03-13 1992-09-16 Sapphire Research And Electron Producing debris samples from liquids
US5308483A (en) * 1992-08-27 1994-05-03 Gelman Sciences Inc. Microporous filtration funnel assembly
US6358730B1 (en) 1997-01-29 2002-03-19 Pall Corporation Filtration assembly and culture device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487114A (en) * 1980-05-27 1984-12-11 Abdenour Joseph D Brewing improvement
FR2506021A1 (en) * 1981-05-13 1982-11-19 Draegerwerk Ag INDICATOR TUBE WITH FILTER
GB2210805A (en) * 1987-12-15 1989-06-21 Sev Trent Water Authority Filtering and filters
GB2217223A (en) * 1988-04-09 1989-10-25 Brian William Garn Vacuum filter
GB2217223B (en) * 1988-04-09 1992-06-03 Brian William Garn Screening or filtering apparatus
GB2253573A (en) * 1991-03-13 1992-09-16 Sapphire Research And Electron Producing debris samples from liquids
US5308483A (en) * 1992-08-27 1994-05-03 Gelman Sciences Inc. Microporous filtration funnel assembly
US6358730B1 (en) 1997-01-29 2002-03-19 Pall Corporation Filtration assembly and culture device

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
PLE Entries relating assignments, transmissions, licences in the register of patents
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee