IT1249613B - Macchina per la soffiatura d'imballaggi in polietilentereftalato biorientato a processo di soffiatura attuato con la macchina. - Google Patents

Macchina per la soffiatura d'imballaggi in polietilentereftalato biorientato a processo di soffiatura attuato con la macchina.

Info

Publication number
IT1249613B
IT1249613B ITMI911482A ITMI911482A IT1249613B IT 1249613 B IT1249613 B IT 1249613B IT MI911482 A ITMI911482 A IT MI911482A IT MI911482 A ITMI911482 A IT MI911482A IT 1249613 B IT1249613 B IT 1249613B
Authority
IT
Italy
Prior art keywords
machine
blowing
ironing
shape
packaging
Prior art date
Application number
ITMI911482A
Other languages
English (en)
Inventor
Andre-Marcel Collombin
Ennio Glauco Curetti
Original Assignee
Dynaplast Sa
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 Dynaplast Sa filed Critical Dynaplast Sa
Publication of ITMI911482A0 publication Critical patent/ITMI911482A0/it
Publication of ITMI911482A1 publication Critical patent/ITMI911482A1/it
Application granted granted Critical
Publication of IT1249613B publication Critical patent/IT1249613B/it

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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/18—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using several blowing steps
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/58—Blowing means
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C2049/4294—Sealing means
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/58—Blowing means
    • B29C2049/5806—Means for fixing the blowing means with the mould
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/58—Blowing means
    • B29C2049/5806—Means for fixing the blowing means with the mould
    • B29C2049/5813—Hydraulic
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/58—Blowing means
    • B29C2049/5827—Blowing means not touching the preform
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/786—Temperature
    • B29C2049/7867—Temperature of the heating or cooling means
    • B29C2049/78675—Temperature of the heating or cooling means of the heating means
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0776—Closure retaining means not containing threads
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/122—Drive means therefor
    • B29C49/1222—Pneumatic
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/56—Opening, closing or clamping means
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6418—Heating of preforms
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6472—Heating or cooling preforms, parisons or blown articles in several stages
    • B29C49/648—Heating or cooling preforms, parisons or blown articles in several stages of preforms or parisons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

Macchina per la fabbricazione di imballaggi in polietilentereftalato comprendente: uno stampo di stiratura-soffiatura atto a ricevere una pre-forma da deformare; un'asta di stiratura spostabile coassialmente, rispetto allo stampo, all'interno di detta pre-forma per stirarla assialmente; una fonte di aria sotto pressione che alimenta contemporaneamente l'interno della pre-forma, per la sua soffiatura, ed un martinetto di azionamento di detta asta per la stiratura meccanica di detta pre-forma. L'invenzione riguarda anche il processo di stiratura-soffiatura attuato con la suddetta macchina. (FIG. 1)
ITMI911482A 1990-05-31 1991-05-30 Macchina per la soffiatura d'imballaggi in polietilentereftalato biorientato a processo di soffiatura attuato con la macchina. IT1249613B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1844/90A CH683757A5 (fr) 1990-05-31 1990-05-31 Machine modulaire intégrée pour la fabrication et le conditionnement de récipients en téréphtalate de polyéthylène bi-orienté et les modules de soufflage et remplissage la constituant.

Publications (3)

Publication Number Publication Date
ITMI911482A0 ITMI911482A0 (it) 1991-05-30
ITMI911482A1 ITMI911482A1 (it) 1992-11-30
IT1249613B true IT1249613B (it) 1995-03-09

Family

ID=4219934

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI911482A IT1249613B (it) 1990-05-31 1991-05-30 Macchina per la soffiatura d'imballaggi in polietilentereftalato biorientato a processo di soffiatura attuato con la macchina.

Country Status (4)

Country Link
US (1) US5200134A (it)
CH (1) CH683757A5 (it)
DE (1) DE4117010C2 (it)
IT (1) IT1249613B (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH690543A5 (fr) * 1995-07-19 2000-10-13 Tetra Pak Plastics Ltd Tetra P Machines pour la fabrication de récipients en matière plastique.
CH690095A5 (fr) * 1995-12-07 2000-04-28 Tetra Pak Plastics Ltd Tetra P Dispositif de chauffage pour machines de transformation de matières plastiques.
FR2764544B1 (fr) * 1997-06-16 1999-09-24 Sidel Sa Tuyere de soufflage de recipients en matiere plastique et installation pourvue d'une telle tuyere
US6168414B1 (en) 1997-10-31 2001-01-02 Electra Form, Inc. Apparatus for cryogenic stretch blow molding
FR2794109B1 (fr) * 1999-05-27 2001-08-03 Sidel Sa Systeme de convoyage d'ebauches dans une installation de soufflage de recipients
KR100366124B1 (ko) * 2000-07-22 2003-01-09 정성정밀공업(주) 페트병 제조에 사용되는 실린더 조립체
FR2814392B1 (fr) * 2000-09-25 2002-12-20 Sidel Sa Machine d'etirage-soufflage comportant une commande perfectionnee de la tige d'etirage
DE20018500U1 (de) * 2000-10-28 2001-12-13 KRONES AG, 93073 Neutraubling Blasmaschine
DE102004003939A1 (de) * 2004-01-26 2005-08-11 Sig Technology Ltd. Verfahren und Vorrichtung zur Blasformung von Behältern
EP1660303B1 (de) * 2003-09-05 2009-09-23 KHS Corpoplast GmbH & Co. KG Verfahren und vorrichtung zur blasformung von behältern
FR2889993B1 (fr) * 2005-08-23 2007-12-28 Technoplan Engineering S A Sa Procede de soufflage au moyen d'un gaz d'un emballage et installation de mise en oeuvre.
WO2007029203A2 (fr) * 2005-09-10 2007-03-15 Aisapack Holding S.A. Dispositif et methode de transfert de preformes
DE102006039962B4 (de) 2006-08-25 2016-02-18 Khs Corpoplast Gmbh Verfahren und Vorrichtung zur Blasformung von Behältern
FR2914876B1 (fr) * 2007-04-10 2009-07-10 Sidel Participations Dispositif de moulage, par soufflage ou etirage-soufflage, de recipients en matiere thermoplastique
DE102008005311A1 (de) * 2008-01-21 2009-07-23 Armin Steinke Vorrichtung zur Streckblasformung eines Behälters
DE502008001553D1 (de) * 2008-11-18 2010-11-25 Seitz Eugen Ag Vorrichtungen und Verfahren zum Steckblasformen eines Behälters und die entsprechende Verwendung.
CN102416696A (zh) * 2011-11-22 2012-04-18 徐光中 一种吹瓶机吹制模具的吹瓶机构
CN103448232A (zh) * 2013-09-12 2013-12-18 王磊 塑料红酒杯的成型工艺
EP2942177B1 (en) 2014-05-05 2017-07-12 Discma AG Method for hydroforming a container from a preform
CH710149A1 (de) * 2014-09-25 2016-03-31 Alpla Werke Kunststoffbehälter, der durch ein Streckblasverfahren aus einem Preform hergestellt ist und Streckblasverfahren zur Herstellung eines Kunststoffbehälters aus einem Preform.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196165A (en) * 1975-02-26 1980-04-01 Solvay & Cie. Process for the production of oriented hollow plastic bodies
BE845899A (fr) * 1976-05-24 1976-12-31 Appareil pour commander la repartition de matiere plastique lors de la fabrication de recipients en matiere plastique a orientation bi-axiale
US4566871A (en) * 1981-01-16 1986-01-28 Krupp Corpoplast Maschinenbau Gmbh Apparatus for making a parison for blowmolding of a hollow article
US4372735A (en) * 1981-04-02 1983-02-08 The Continental Group, Inc. Controlled feed of stabilizing rod associated with controlled application of blowing gas
DE3815193A1 (de) * 1988-05-04 1989-11-16 Krupp Corpoplast Masch Verfahren und vorrichtung zum blasformen eines hohlkoerpers aus thermoplastischem kunststoff

Also Published As

Publication number Publication date
ITMI911482A0 (it) 1991-05-30
ITMI911482A1 (it) 1992-11-30
DE4117010C2 (de) 2003-11-20
US5200134A (en) 1993-04-06
CH683757A5 (fr) 1994-05-13
DE4117010A1 (de) 1991-12-05

Similar Documents

Publication Publication Date Title
IT1249613B (it) Macchina per la soffiatura d'imballaggi in polietilentereftalato biorientato a processo di soffiatura attuato con la macchina.
BR9403725A (pt) Processo para a moldagem de uma pré-forma por moldagem por injeção com estiramento por insulflação
ES488780A1 (es) Moldeador por insuflado e inyeccion para articulos huecos dedoble pared
ES541290A0 (es) Procedimiento de fabricacion de botellas de material plasti-co a partir de esbozos huecos obtenidos mediante moldeo y dispositivos para poner en practica este procedimiento
AR247131A1 (es) Pieza inicial o preforma para ser usada en el moldeo por soplado de un recipiente de fondo concavo
MX9602814A (es) Metodo para trabajar con aire y sistema para diversas unidades impulsoras de una maquina de moldeo de estirado por soplado.
ES2152410T3 (es) Dispositivo de estanqueidad entre una preforma de recipiente de material plastico y una tobera de soplado, y una maquina de soplado de recipientes provista de ese dispositivo.
CO4750690A1 (es) Recipientes tubulares moldeados por soplado, inyeccion y estiramiento
GB1480464A (en) Method and apparatus for blow moulding
PT1218167E (pt) Dispositivo para enformacao de um numero de objectos de parede fina por meio de um processo de enformacao a quente
ES368261A1 (es) Procedimiento para la aplicacion de etiquetas o platinas sobre cuerpos de plastico termoplastico fabricados por el procedimiento de soplado.
ES8205077A1 (es) Interruptor automatico del tipo de extincion de arco por chorro de gas
GB1165625A (en) Hollow Articles and Apparatus for their Manufacture.
DE69424206D1 (de) Matrizkühlvorrichtung für eine Maschine zum Herstellen von Glasgegenstände
GB747434A (en) Improvements in or relating to the production of hollow bodies from organic plastic materials
JPS5486560A (en) Molding of blown bottle
GB1385369A (en) Blow moulding machines
MY111308A (en) Molding machine for semiconductor package.
ES8502374A1 (es) Un procedimiento para el control de la temperatura de la masa en un metodo de moldeo por soplado de estirado por inyeccion
IT1071984B (it) Procedimento e apparecchio di formatura di bottiglie mediante stampaggio a stiramento soffiatura
GB972325A (en) An improved pressure forming process for thermoplastic sheet material
IT1183605B (it) Procedimento di filatura pneumatica e filatcic pneumatico
GB1415700A (en) Method and apparatus for moulding composite containers
ES2175576T3 (es) Procedimiento y dispositivo para la fabricacion de un arbol hueco con elevaciones radiales exteriores por medio de deformacion con alta presion interior.
JPS5783436A (en) Molding of sealed hollow body and its mold

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970529