CA1007410A - Worm screw extruder provided with a flow barrier and bore - Google Patents

Worm screw extruder provided with a flow barrier and bore

Info

Publication number: CA1007410A
Authority: CA; Canada
Prior art keywords: bore; screw extruder; worm screw; flow barrier; extruder provided
Prior art date: 1972-02-09
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

CA161,484A

Other languages

English (en)

Other versions

CA161484S (en

Inventor

Willem Vermeulen

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.)

Shell Canada Ltd

Original Assignee

Shell Canada 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.)

1972-02-09

Filing date

1973-01-17

Publication date

1977-03-29

1973-01-17 Application filed by Shell Canada Ltd filed Critical Shell Canada Ltd

1977-03-29 Application granted granted Critical

1977-03-29 Publication of CA1007410A publication Critical patent/CA1007410A/en

Status Expired legal-status Critical Current

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
- 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
- B29C44/3442—Mixing, kneading or conveying the foamable material
- B29C44/3446—Feeding the blowing agent
- B29C44/3449—Feeding the blowing agent through the screw
- 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
- B29C44/3442—Mixing, kneading or conveying the foamable material
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
- B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Extrusion Moulding Of Plastics Or The Like (AREA)
Molding Of Porous Articles (AREA)

CA161,484A 1972-02-09 1973-01-17 Worm screw extruder provided with a flow barrier and bore Expired CA1007410A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB605972A GB1378793A (en)	1972-02-09	1972-02-09	Extruder

Publications (1)

Publication Number	Publication Date
CA1007410A true CA1007410A (en)	1977-03-29

Family

ID=9807671

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA161,484A Expired CA1007410A (en)	1972-02-09	1973-01-17	Worm screw extruder provided with a flow barrier and bore

Country Status (8)

Country	Link
JP (1)	JPS4892461A (nl)
BE (1)	BE794766A (nl)
CA (1)	CA1007410A (nl)
DE (1)	DE2305914A1 (nl)
FR (1)	FR2171230B1 (nl)
GB (1)	GB1378793A (nl)
IT (1)	IT977738B (nl)
NL (1)	NL7301695A (nl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5220490A (en) *	1990-10-25	1993-06-15	Microelectronics And Computer Technology Corporation	Substrate interconnect allowing personalization using spot surface links

0
- BE BE794766D patent/BE794766A/nl unknown
1972
- 1972-02-09 GB GB605972A patent/GB1378793A/en not_active Expired
1973
- 1973-01-17 CA CA161,484A patent/CA1007410A/en not_active Expired
- 1973-02-07 JP JP48014838A patent/JPS4892461A/ja active Pending
- 1973-02-07 NL NL7301695A patent/NL7301695A/xx not_active Application Discontinuation
- 1973-02-07 IT IT67269/73A patent/IT977738B/it active
- 1973-02-07 FR FR7304278A patent/FR2171230B1/fr not_active Expired
- 1973-02-07 DE DE2305914A patent/DE2305914A1/de active Pending

Also Published As

Publication number	Publication date
JPS4892461A (nl)	1973-11-30
NL7301695A (nl)	1973-08-13
FR2171230B1 (nl)	1977-04-22
GB1378793A (en)	1974-12-27
IT977738B (it)	1974-09-20
BE794766A (nl)	1973-07-31
DE2305914A1 (de)	1973-08-16
FR2171230A1 (nl)	1973-09-21

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