CA1021118A - Thickness adjustment for shaping plastic foam blocks - Google Patents

Thickness adjustment for shaping plastic foam blocks

Info

Publication number: CA1021118A
Authority: CA; Canada
Prior art keywords: plastic foam; thickness adjustment; foam blocks; shaping plastic; shaping
Prior art date: 1973-05-29
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

CA200,521A

Other languages

English (en)

French (fr)

Other versions

CA200521S (en

Inventor

John E. Marjoram

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.)

Dunlop Ltd

Original Assignee

Dunlop 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.)

1973-05-29

Filing date

1974-05-22

Publication date

1977-11-22

1974-05-22 Application filed by Dunlop Ltd filed Critical Dunlop Ltd

1977-11-22 Application granted granted Critical

1977-11-22 Publication of CA1021118A publication Critical patent/CA1021118A/en

Status Expired 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
- 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
- B29C44/586—Moulds with a cavity increasing in size during foaming
- 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

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Moulds For Moulding Plastics Or The Like (AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Road Signs Or Road Markings (AREA)
Electrotherapy Devices (AREA)
Molding Of Porous Articles (AREA)

CA200,521A 1973-05-29 1974-05-22 Thickness adjustment for shaping plastic foam blocks Expired CA1021118A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB2543073A GB1425612A (en)	1973-05-29	1973-05-29	Moulding of plastics foam

Publications (1)

Publication Number	Publication Date
CA1021118A true CA1021118A (en)	1977-11-22

Family

ID=10227546

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA200,521A Expired CA1021118A (en)	1973-05-29	1974-05-22	Thickness adjustment for shaping plastic foam blocks

Country Status (19)

Country	Link
JP (1)	JPS5022064A (xx)
AR (1)	AR199346A1 (xx)
BE (1)	BE815707A (xx)
BR (1)	BR7404347D0 (xx)
CA (1)	CA1021118A (xx)
CH (1)	CH582056A5 (xx)
DE (1)	DE2426212A1 (xx)
DK (1)	DK288874A (xx)
ES (1)	ES426706A1 (xx)
FI (1)	FI162074A (xx)
FR (1)	FR2231503B1 (xx)
GB (1)	GB1425612A (xx)
IE (1)	IE39398B1 (xx)
IT (1)	IT1037060B (xx)
NL (1)	NL7406809A (xx)
NO (1)	NO140461C (xx)
SE (1)	SE402067B (xx)
ZA (1)	ZA743202B (xx)
ZM (1)	ZM8074A1 (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4666393A (en) *	1986-06-13	1987-05-19	Human Industry Corporation	Apparatus for manufacturing polyurethane foam slabs in a batch
GB2291002A (en) *	1994-07-08	1996-01-17	Hoover Universal	Apparatus and method for producing blocks of foam
CN111745882A (zh) *	2020-06-11	2020-10-09	溧阳市山湖实业有限公司	一种pu片材下移式发泡生产工艺及其生产设备
CN111974938A (zh) *	2020-08-27	2020-11-24	杭州欧宸科技有限公司	一种全自动泡沫模成型机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2588151A (en) *	1948-09-30	1952-03-04	Gen Electric	Apparatus for producing uniform foam structures
US2649620A (en) *	1951-08-01	1953-08-25	Union Carbide & Carbon Corp	Casting expanded plastics

1973
- 1973-05-29 GB GB2543073A patent/GB1425612A/en not_active Expired
1974
- 1974-05-20 ZA ZA00743202A patent/ZA743202B/xx unknown
- 1974-05-21 ZM ZM80/74A patent/ZM8074A1/xx unknown
- 1974-05-21 NL NL7406809A patent/NL7406809A/xx not_active Application Discontinuation
- 1974-05-21 NO NO741847A patent/NO140461C/no unknown
- 1974-05-22 CA CA200,521A patent/CA1021118A/en not_active Expired
- 1974-05-27 FI FI1620/74A patent/FI162074A/fi unknown
- 1974-05-28 DK DK288874A patent/DK288874A/da not_active Application Discontinuation
- 1974-05-28 BR BR4347/74A patent/BR7404347D0/pt unknown
- 1974-05-28 ES ES426706A patent/ES426706A1/es not_active Expired
- 1974-05-28 CH CH728474A patent/CH582056A5/xx not_active IP Right Cessation
- 1974-05-28 SE SE7407047A patent/SE402067B/xx unknown
- 1974-05-29 AR AR253971A patent/AR199346A1/es active
- 1974-05-29 FR FR7418609A patent/FR2231503B1/fr not_active Expired
- 1974-05-29 BE BE144898A patent/BE815707A/xx unknown
- 1974-05-29 DE DE19742426212 patent/DE2426212A1/de not_active Withdrawn
- 1974-05-29 JP JP49060670A patent/JPS5022064A/ja active Pending
- 1974-05-29 IE IE1131/74A patent/IE39398B1/xx unknown
- 1974-06-14 IT IT7423973A patent/IT1037060B/it active

Also Published As

Publication number	Publication date
AU6923274A (en)	1975-11-27
ES426706A1 (es)	1977-01-01
IT1037060B (it)	1979-11-10
ZA743202B (en)	1975-05-28
NO140461C (no)	1979-09-05
DK288874A (xx)	1975-01-20
CH582056A5 (xx)	1976-11-30
SE402067B (sv)	1978-06-19
AR199346A1 (es)	1974-08-23
IE39398B1 (en)	1978-09-27
BE815707A (fr)	1974-09-16
FI162074A (xx)	1974-11-30
NO741847L (no)	1974-12-02
NO140461B (no)	1979-05-28
GB1425612A (en)	1976-02-18
FR2231503B1 (xx)	1976-12-24
BR7404347D0 (pt)	1975-01-21
JPS5022064A (xx)	1975-03-08
ZM8074A1 (en)	1974-12-20
NL7406809A (xx)	1974-12-03
IE39398L (en)	1974-11-29
DE2426212A1 (de)	1974-12-19
FR2231503A1 (xx)	1974-12-27
SE7407047L (xx)	1974-12-02

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