GB1512958A - Filter - Google Patents

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Info

Publication number
GB1512958A
GB1512958A GB43072/74A GB4307274A GB1512958A GB 1512958 A GB1512958 A GB 1512958A GB 43072/74 A GB43072/74 A GB 43072/74A GB 4307274 A GB4307274 A GB 4307274A GB 1512958 A GB1512958 A GB 1512958A
Authority
GB
United Kingdom
Prior art keywords
pleats
oct
fold lines
filter element
filter
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
GB43072/74A
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.)
Crosland Filters Ltd
Original Assignee
Crosland Filters 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 Crosland Filters Ltd filed Critical Crosland Filters Ltd
Priority to GB43072/74A priority Critical patent/GB1512958A/en
Publication of GB1512958A publication Critical patent/GB1512958A/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
    • B01D29/012—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
    • B01D29/01—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
    • B01D29/016—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 with corrugated, folded or wound filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/12—Pleated filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

1512958 Filter element CROSLAND FILTERS Ltd 6 Oct 1975 [4 Oct 1974] 43072/74 Heading B1D A filter element made of pleated sheet material, such as resin-impregnated paper, has the material folded inwards at the ends of the pleats to close the ends as shown. The additional fold lines 16 are so oriented that the lower edges of the triangular panels shown are coplanar with the lower fold lines of the pleats. The element may be annular or generally flat and is provided with end caps or an enclosing frame (not shown).
GB43072/74A 1975-10-06 1975-10-06 Filter Expired GB1512958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB43072/74A GB1512958A (en) 1975-10-06 1975-10-06 Filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43072/74A GB1512958A (en) 1975-10-06 1975-10-06 Filter

Publications (1)

Publication Number Publication Date
GB1512958A true GB1512958A (en) 1978-06-01

Family

ID=10427205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43072/74A Expired GB1512958A (en) 1975-10-06 1975-10-06 Filter

Country Status (1)

Country Link
GB (1) GB1512958A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512891A (en) * 1982-11-16 1985-04-23 Donaldson Company, Inc. Pleated filter element with controlled expansibility and frame therefor
US4560477A (en) * 1982-11-22 1985-12-24 501 P.M. Filter Konstruktionen Separator for filter cartridges
US4652286A (en) * 1982-02-16 1987-03-24 Matsushita Electric Industrial Co., Ltd. Exhaust gas filter
WO1992021424A1 (en) * 1991-06-04 1992-12-10 Allied-Signal Inc. Filter with delta wedge pleat
WO1994015724A1 (en) * 1993-01-13 1994-07-21 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5417859A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US5921399A (en) 1996-06-07 1999-07-13 Derrick Corporation Gumbo separator
US5944197A (en) * 1997-04-24 1999-08-31 Southwestern Wire Cloth, Inc. Rectangular opening woven screen mesh for filtering solid particles
US5958236A (en) * 1993-01-13 1999-09-28 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US6000556A (en) * 1993-01-13 1999-12-14 Derrick Manufacturing Corporation Screen assembly for vibratory screening machine

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652286A (en) * 1982-02-16 1987-03-24 Matsushita Electric Industrial Co., Ltd. Exhaust gas filter
US4512891A (en) * 1982-11-16 1985-04-23 Donaldson Company, Inc. Pleated filter element with controlled expansibility and frame therefor
US4560477A (en) * 1982-11-22 1985-12-24 501 P.M. Filter Konstruktionen Separator for filter cartridges
WO1992021424A1 (en) * 1991-06-04 1992-12-10 Allied-Signal Inc. Filter with delta wedge pleat
US5720881A (en) * 1993-01-13 1998-02-24 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5876552A (en) * 1993-01-13 1999-03-02 Derrick Manufacturing Corporation Method of fabricating screen for vibratory screening machine
US5417793A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US5417858A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
WO1994015724A1 (en) * 1993-01-13 1994-07-21 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5783077A (en) * 1993-01-13 1998-07-21 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine
US5868929A (en) * 1993-01-13 1999-02-09 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5417859A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US6340089B1 (en) 1993-01-13 2002-01-22 Derrick Manufacturing Corporation Method of fabricating undulating screen for vibratory screening machine
US6000556A (en) * 1993-01-13 1999-12-14 Derrick Manufacturing Corporation Screen assembly for vibratory screening machine
US5944993A (en) * 1993-01-13 1999-08-31 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5958236A (en) * 1993-01-13 1999-09-28 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US5921399A (en) 1996-06-07 1999-07-13 Derrick Corporation Gumbo separator
US5944197A (en) * 1997-04-24 1999-08-31 Southwestern Wire Cloth, Inc. Rectangular opening woven screen mesh for filtering solid particles

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee