DE3537794A1 - Plastic sieve, process and injection mould for the production thereof - Google Patents

Plastic sieve, process and injection mould for the production thereof

Info

Publication number
DE3537794A1
DE3537794A1 DE19853537794 DE3537794A DE3537794A1 DE 3537794 A1 DE3537794 A1 DE 3537794A1 DE 19853537794 DE19853537794 DE 19853537794 DE 3537794 A DE3537794 A DE 3537794A DE 3537794 A1 DE3537794 A1 DE 3537794A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
inner
stiffenings
outer
grooves
sieve
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.)
Withdrawn
Application number
DE19853537794
Other languages
German (de)
Inventor
Josef Hlousek
Stepan Kulka
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.)
Koh I Noor Hardtmuth AS
Original Assignee
Koh I Noor Hardtmuth AS
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0046Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/111Making filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/737Articles provided with holes, e.g. grids, sieves

Abstract

The invention relates to a plastic sieve having a functional part which has meshes and outer or inner stiffenings and is injection moulded from one piece of material. The functional part consists of inner longitudinal ribs and outer transverse ribs which form an entirety together with the outer stiffenings or inner stiffenings. The object of the invention is to produce a sieve from plastic without other materials, in one piece by injection moulding without further processing. The sieve is produced by allowing the melt to penetrate, from the gates, through the outer stiffenings or the inner stiffenings, into the outer transverse ribs, from which it passes into the inner longitudinal ribs. The injection mould is equipped with a mandrel with grooves for inner longitudinal ribs and a split female mould with grooves for outer transverse ribs. Grooves for the outer stiffening are disposed in the inner female-mould-surface and grooves for the inner stiffenings in the mandrel surface.
DE19853537794 1984-10-29 1985-10-24 Plastic sieve, process and injection mould for the production thereof Withdrawn DE3537794A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS819784A CS244400B1 (en) 1984-10-29 1984-10-29 All-plastic screen and mould for its production

Publications (1)

Publication Number Publication Date
DE3537794A1 true true DE3537794A1 (en) 1986-05-07

Family

ID=5432206

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853537794 Withdrawn DE3537794A1 (en) 1984-10-29 1985-10-24 Plastic sieve, process and injection mould for the production thereof

Country Status (1)

Country Link
DE (1) DE3537794A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0667177A1 (en) * 1993-12-30 1995-08-16 Hoechst Aktiengesellschaft Filter for liquids
DE19721427A1 (en) * 1997-05-22 1998-11-26 Mann & Hummel Filter sieve
DE19744361A1 (en) * 1997-09-24 1999-03-25 Theo Hillers Plastic fuel filter
EP1088721A2 (en) * 1999-09-29 2001-04-04 Mannesmann VDO Aktiengesellschaft Filter to be mounted upstream of a pump of a vehicle window cleaning unit
EP1870150A1 (en) * 2006-06-23 2007-12-26 Unilever N.V. Filter and process to prepare the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0667177A1 (en) * 1993-12-30 1995-08-16 Hoechst Aktiengesellschaft Filter for liquids
US5695638A (en) * 1993-12-30 1997-12-09 Hoechst Aktiengesellschaft Liquid filter
DE19721427A1 (en) * 1997-05-22 1998-11-26 Mann & Hummel Filter sieve
DE19744361A1 (en) * 1997-09-24 1999-03-25 Theo Hillers Plastic fuel filter
EP1088721A2 (en) * 1999-09-29 2001-04-04 Mannesmann VDO Aktiengesellschaft Filter to be mounted upstream of a pump of a vehicle window cleaning unit
EP1088721B1 (en) * 1999-09-29 2005-11-02 Siemens Aktiengesellschaft Filter to be mounted upstream of a pump of a vehicle window cleaning unit
EP1870150A1 (en) * 2006-06-23 2007-12-26 Unilever N.V. Filter and process to prepare the same
WO2007147716A1 (en) * 2006-06-23 2007-12-27 Unilever N.V. Filter and process to prepare the same
CN101472659B (en) 2006-06-23 2012-01-11 荷兰联合利华有限公司 Filter and process to prepare the same

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee