FR2502542B1 - - Google Patents

Info

Publication number
FR2502542B1
FR2502542B1 FR8106162A FR8106162A FR2502542B1 FR 2502542 B1 FR2502542 B1 FR 2502542B1 FR 8106162 A FR8106162 A FR 8106162A FR 8106162 A FR8106162 A FR 8106162A FR 2502542 B1 FR2502542 B1 FR 2502542B1
Authority
FR
France
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
FR8106162A
Other languages
French (fr)
Other versions
FR2502542A1 (fr
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.)
Treves Ets
Original Assignee
Treves Ets
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 Treves Ets filed Critical Treves Ets
Priority to FR8106162A priority Critical patent/FR2502542A1/fr
Priority to EP82400561A priority patent/EP0061972A1/fr
Publication of FR2502542A1 publication Critical patent/FR2502542A1/fr
Application granted granted Critical
Publication of FR2502542B1 publication Critical patent/FR2502542B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/70—Maintenance
    • B29C33/72—Cleaning
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/38—Support for the head or the back for the head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/76—Mixers with stream-impingement mixing head
    • B29B7/7631—Parts; Accessories
    • B29B7/7636—Construction of the feed orifices, bores, ports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/76—Mixers with stream-impingement mixing head
    • B29B7/7663—Mixers with stream-impingement mixing head the mixing head having an outlet tube with a reciprocating plunger, e.g. with the jets impinging in the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/802—Constructions or methods for cleaning the mixing or kneading device
    • B29B7/803—Cleaning of mixers of the gun type, stream-impigement type, mixing heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0077—Moulds or cores; Details thereof or accessories therefor characterised by the configuration of the mould filling gate ; accessories for connecting the mould filling gate with the filling spout
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/421—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum by plastizising the material into a shot cavity and injecting using a plunger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/581—Closure devices for pour holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/751—Mattresses, cushions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
FR8106162A 1981-03-27 1981-03-27 Perfectionnements aux tetes d'injection de polyurethane et aux procedes d'injection dans une enveloppe creuse, notamment d'un appui-tete Granted FR2502542A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8106162A FR2502542A1 (fr) 1981-03-27 1981-03-27 Perfectionnements aux tetes d'injection de polyurethane et aux procedes d'injection dans une enveloppe creuse, notamment d'un appui-tete
EP82400561A EP0061972A1 (fr) 1981-03-27 1982-03-26 Perfectionnements aux têtes d'injection de polyuréthane et aux procédés d'injection dans une enveloppe creuse, notamment d'un appui-tête

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8106162A FR2502542A1 (fr) 1981-03-27 1981-03-27 Perfectionnements aux tetes d'injection de polyurethane et aux procedes d'injection dans une enveloppe creuse, notamment d'un appui-tete

Publications (2)

Publication Number Publication Date
FR2502542A1 FR2502542A1 (fr) 1982-10-01
FR2502542B1 true FR2502542B1 (US07652168-20100126-C00068.png) 1984-02-10

Family

ID=9256705

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8106162A Granted FR2502542A1 (fr) 1981-03-27 1981-03-27 Perfectionnements aux tetes d'injection de polyurethane et aux procedes d'injection dans une enveloppe creuse, notamment d'un appui-tete

Country Status (2)

Country Link
EP (1) EP0061972A1 (US07652168-20100126-C00068.png)
FR (1) FR2502542A1 (US07652168-20100126-C00068.png)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578190B1 (fr) * 1985-03-01 1987-04-17 Roth Sa Freres Procede de rembordage de housse sur piece moulee in situ en mousse de polyurethane et pieces moulees ainsi obtenues
US4830793A (en) * 1986-07-18 1989-05-16 Establissements Treves - Societe Anonyme Francaise Method of injecting polyurethane foam into a hollow envelope, more particularly a vehicle head-rest
WO1991014555A1 (en) * 1990-03-26 1991-10-03 American Standard Inc. Mix head bushing for molding process
US5083913A (en) * 1990-03-26 1992-01-28 American Standard Inc. Mix head bushing seal
US5456586A (en) * 1993-07-07 1995-10-10 Carson; Scott Apparatus for manufacturing articles made of polyurethane
DE102012011355A1 (de) * 2012-06-11 2013-12-12 Udo Tartler Vorrichtung zum Mischen mindestens zweier fluider Komponenten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030666A (en) * 1960-01-07 1962-04-24 Owens Illinois Glass Co Method for low pressure molding
FR2107392A5 (en) * 1971-09-01 1972-05-05 Roth Jacques Upholstery inserts - for fastening and admission of foamable plastic
GB1407616A (en) * 1972-09-02 1975-09-24 Viking Eng Co Ltd Plastics foam making apparatus and method
DE2550334A1 (de) * 1975-11-08 1977-05-18 Demag Kunststofftech Angussvorrichtung fuer die formgebende verarbeitung von kunststoffen

Also Published As

Publication number Publication date
EP0061972A1 (fr) 1982-10-06
FR2502542A1 (fr) 1982-10-01

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