IT1157388B - INJECTION INPUT DEVICE FOR A MOLDING EQUIPMENT OF ELEMENTS WITH A CENTRAL HOLE IN PARTICULAR VIDEO DISCS - Google Patents

INJECTION INPUT DEVICE FOR A MOLDING EQUIPMENT OF ELEMENTS WITH A CENTRAL HOLE IN PARTICULAR VIDEO DISCS

Info

Publication number
IT1157388B
IT1157388B IT51676/78A IT5167678A IT1157388B IT 1157388 B IT1157388 B IT 1157388B IT 51676/78 A IT51676/78 A IT 51676/78A IT 5167678 A IT5167678 A IT 5167678A IT 1157388 B IT1157388 B IT 1157388B
Authority
IT
Italy
Prior art keywords
elements
input device
central hole
molding equipment
particular video
Prior art date
Application number
IT51676/78A
Other languages
Italian (it)
Other versions
IT7851676A0 (en
Original Assignee
Mca Disco Vision
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25300444&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IT1157388(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mca Disco Vision filed Critical Mca Disco Vision
Publication of IT7851676A0 publication Critical patent/IT7851676A0/en
Application granted granted Critical
Publication of IT1157388B publication Critical patent/IT1157388B/en

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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/38—Cutting-off equipment for sprues or ingates
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C2045/2653—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs using two stampers
IT51676/78A 1977-10-31 1978-10-27 INJECTION INPUT DEVICE FOR A MOLDING EQUIPMENT OF ELEMENTS WITH A CENTRAL HOLE IN PARTICULAR VIDEO DISCS IT1157388B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84736777A 1977-10-31 1977-10-31

Publications (2)

Publication Number Publication Date
IT7851676A0 IT7851676A0 (en) 1978-10-27
IT1157388B true IT1157388B (en) 1987-02-11

Family

ID=25300444

Family Applications (3)

Application Number Title Priority Date Filing Date
IT51675/78A IT1120250B (en) 1977-10-31 1978-10-27 DEVICE TO COOL A MOLD FOR INJECTION MOLDING OF ELEMENTS WITH CENTRAL HOLE IN PARTICULAR VIDEO DISCS
IT51676/78A IT1157388B (en) 1977-10-31 1978-10-27 INJECTION INPUT DEVICE FOR A MOLDING EQUIPMENT OF ELEMENTS WITH A CENTRAL HOLE IN PARTICULAR VIDEO DISCS
IT7851677A IT1117449B (en) 1977-10-31 1978-10-27 DEVICE FOR INJECTION PRINTING ELEMENTS PERFORATED AT THE CENTER, IN PARTICULAR VIDEO DISCS

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IT51675/78A IT1120250B (en) 1977-10-31 1978-10-27 DEVICE TO COOL A MOLD FOR INJECTION MOLDING OF ELEMENTS WITH CENTRAL HOLE IN PARTICULAR VIDEO DISCS

Family Applications After (1)

Application Number Title Priority Date Filing Date
IT7851677A IT1117449B (en) 1977-10-31 1978-10-27 DEVICE FOR INJECTION PRINTING ELEMENTS PERFORATED AT THE CENTER, IN PARTICULAR VIDEO DISCS

Country Status (16)

Country Link
JP (5) JPS5858214B2 (en)
AU (1) AU512873B2 (en)
BE (1) BE871710A (en)
BR (1) BR7807136A (en)
CA (1) CA1102973A (en)
CH (1) CH635027A5 (en)
DE (1) DE2838634C2 (en)
DK (1) DK158288C (en)
FR (1) FR2407067A1 (en)
GB (2) GB2060471B (en)
HK (2) HK42286A (en)
IT (3) IT1120250B (en)
MX (1) MX147565A (en)
NL (1) NL187734C (en)
NO (1) NO158724C (en)
SE (2) SE429520B (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL193078C (en) * 1977-10-31 1998-09-08 Mca Disco Vision Injection molding device.
JPS57109620A (en) * 1980-12-26 1982-07-08 Matsushita Electric Ind Co Ltd Molding apparatus of disk like recording medium
JPS58151223A (en) * 1982-03-05 1983-09-08 Nippon Telegr & Teleph Corp <Ntt> Manufacturing method and mold of optical disk substrate
JPS58188636A (en) * 1982-04-30 1983-11-04 Sumitomo Heavy Ind Ltd Injection molding machine with punching mechanism
DE3442023A1 (en) * 1984-11-16 1986-05-28 Krauss-Maffei AG, 8000 München METHOD AND DEVICE FOR PUNCHING AND REMOVING THE CASTING PART IN AN INJECTION MOLDING TOOL
US5273598A (en) * 1985-02-18 1993-12-28 Hitachi Maxell, Ltd. Optical disc manufacturing method
US4911968A (en) * 1985-02-18 1990-03-27 Hitachi Maxell, Ltd. Optical disc
DE3526632A1 (en) * 1985-07-25 1987-02-05 Krauss Maffei Ag METHOD AND DEVICE FOR PRODUCING AN INJECTION MOLDING PART
DE3542878A1 (en) * 1985-12-02 1987-06-11 Stuebbe Gmbh Maschf Ejector device for injection moulding machines
JPH0320100Y2 (en) * 1986-02-21 1991-04-30
DE3613334A1 (en) * 1986-04-19 1987-10-22 Kloeckner Ferromatik Desma INJECTION MOLD FOR INJECTION MOLDING INFORMATION CARRIER PLATES
US4795127A (en) * 1986-09-27 1989-01-03 Kabushikik Kaisha Meiki Seisakusho Mold assembly of injection-molding machine
JPH0671739B2 (en) * 1987-12-19 1994-09-14 パイオニア株式会社 Information recording disk substrate injection molding machine
JPH0763991B2 (en) * 1988-04-16 1995-07-12 ダイセル化学工業株式会社 Mold for molding optical disc substrate with format
DE3908188C2 (en) * 1989-03-14 1998-10-29 Tetra Pak Gmbh Plastic injection molding tool
GB2235895A (en) * 1989-08-23 1991-03-20 Gerald Dennis Day Moulding tool cooling apparatus
JP2944359B2 (en) * 1993-03-23 1999-09-06 株式会社精工技研 Base injection mold
DE10032337A1 (en) * 2000-07-04 2002-01-17 Bosch Gmbh Robert Connection carrier and method for connecting the connection carrier to an injection molded part
JP4670196B2 (en) * 2001-07-27 2011-04-13 ソニー株式会社 Injection molding apparatus and injection molding method
DE10152932A1 (en) 2001-10-26 2003-05-08 Krauss Maffei Kunststofftech Device for removing an injection molded ....
ATE438498T1 (en) 2003-09-08 2009-08-15 Awm Mold Tech Ag INJECTION MOLDING TOOL FOR THE PRODUCTION OF DISK-SHAPED INFORMATION CARRIERS
JP5273774B2 (en) * 2008-04-04 2013-08-28 帝人株式会社 Aromatic polycarbonate resin injection molded products
JP2010031078A (en) * 2008-07-25 2010-02-12 Teijin Chem Ltd Treatment method of aromatic polycarbonate resin molding

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE957693C (en) * 1957-01-17 Jantzen &. Saebeler, Hamburg-Schneisen Press mold for the production of plastic records
GB147865A (en) * 1916-08-14 1922-01-09 Columbia Graphophone Mfg Co Improvements in dies or moulds used for duplicating gramophone records and for like purposes
US1582704A (en) * 1923-09-08 1926-04-27 Scranton Button Company Die for phonograph records
US2491068A (en) * 1947-01-28 1949-12-13 William M Adams Record stamper
US2613395A (en) * 1949-02-24 1952-10-14 M & W Company Inc Apparatus and method for producing disk phonograph records
GB881736A (en) * 1957-03-14 1961-11-08 Philips Electrical Ind Ltd Improvements in or relating to dies for moulding of flat objects which are thin as compared with their surface dimensions
GB1071340A (en) * 1965-01-27 1967-06-07 Decca Ltd Improvements in or relating to apparatus for making gramophone records
FR1487308A (en) * 1965-07-29 1967-07-07 Carl Lindstrom Ges M B H Improvements to phonograph record presses
FR1509997A (en) * 1966-11-29 1968-01-19 Pathe Marconi Ind Music Improvements in the production of phonographic records by injection
CA1041256A (en) * 1974-05-13 1978-10-31 Csaba K. Hunyar Phonograph record pressing die assembly
JPS511312U (en) * 1974-06-17 1976-01-07
US3989436A (en) * 1975-12-18 1976-11-02 Rca Corporation Apparatus for producing injection molded and centrally apertured disc records
GB1509362A (en) * 1977-01-17 1978-05-04 Emi Electrola Gmbh Disc record press

Also Published As

Publication number Publication date
CH635027A5 (en) 1983-03-15
AU4011478A (en) 1980-03-27
AU512873B2 (en) 1980-10-30
FR2407067B1 (en) 1984-04-27
JPS62275729A (en) 1987-11-30
JPS56139940A (en) 1981-10-31
JPS6477511A (en) 1989-03-23
GB2006666A (en) 1979-05-10
SE429520B (en) 1983-09-12
JPS641290B2 (en) 1989-01-11
DK396378A (en) 1979-05-01
IT1117449B (en) 1986-02-17
DE2838634A1 (en) 1979-05-03
DK158288C (en) 1990-10-01
JPH0262373B2 (en) 1990-12-25
NL7808979A (en) 1979-05-02
IT1120250B (en) 1986-03-19
DE2838634C2 (en) 1986-01-09
BE871710A (en) 1979-04-30
JPS5469169A (en) 1979-06-02
NO158724C (en) 1988-10-26
IT7851675A0 (en) 1978-10-27
GB2060471A (en) 1981-05-07
HK42286A (en) 1986-06-13
JPS6018527B2 (en) 1985-05-10
IT7851676A0 (en) 1978-10-27
BR7807136A (en) 1979-05-08
NO783040L (en) 1979-05-02
DK158288B (en) 1990-04-30
HK42386A (en) 1986-06-13
NL187734C (en) 1992-01-02
GB2060471B (en) 1982-09-08
GB2006666B (en) 1982-09-02
SE7808930L (en) 1979-05-01
NL187734B (en) 1991-08-01
SE438624B (en) 1985-04-29
FR2407067A1 (en) 1979-05-25
IT7851677A0 (en) 1978-10-27
NO158724B (en) 1988-07-18
JPS62275728A (en) 1987-11-30
JPH0319049B2 (en) 1991-03-14
JPS5858214B2 (en) 1983-12-23
CA1102973A (en) 1981-06-16
MX147565A (en) 1982-12-14
SE8200349L (en) 1982-01-22

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Legal Events

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

Effective date: 19971029