NL8002516A - Beginvorm voor een videoschijf, alsook een werkwijze voor het uit een dergelijke beginvorm vervaardigen van een videoschijf. - Google Patents

Beginvorm voor een videoschijf, alsook een werkwijze voor het uit een dergelijke beginvorm vervaardigen van een videoschijf. Download PDF

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Publication number
NL8002516A
NL8002516A NL8002516A NL8002516A NL8002516A NL 8002516 A NL8002516 A NL 8002516A NL 8002516 A NL8002516 A NL 8002516A NL 8002516 A NL8002516 A NL 8002516A NL 8002516 A NL8002516 A NL 8002516A
Authority
NL
Netherlands
Prior art keywords
initial
circumferential
dies
disc
portions
Prior art date
Application number
NL8002516A
Other languages
English (en)
Dutch (nl)
Original Assignee
Rca Corp
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 Rca Corp filed Critical Rca Corp
Publication of NL8002516A publication Critical patent/NL8002516A/nl

Links

Classifications

    • 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
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • 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
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/64—Processes of using preform in molding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/66—Processes of reshaping and reforming

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
NL8002516A 1979-04-30 1980-04-29 Beginvorm voor een videoschijf, alsook een werkwijze voor het uit een dergelijke beginvorm vervaardigen van een videoschijf. NL8002516A (nl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB7914990 1979-04-30
GB7914990 1979-04-30
US6676979 1979-08-15
US06/066,769 US4460656A (en) 1979-04-30 1979-08-15 Video disc preform and method of making a disc therefrom

Publications (1)

Publication Number Publication Date
NL8002516A true NL8002516A (nl) 1980-11-03

Family

ID=26271368

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8002516A NL8002516A (nl) 1979-04-30 1980-04-29 Beginvorm voor een videoschijf, alsook een werkwijze voor het uit een dergelijke beginvorm vervaardigen van een videoschijf.

Country Status (8)

Country Link
US (1) US4460656A (OSRAM)
KR (1) KR840000297Y1 (OSRAM)
AT (1) AT369576B (OSRAM)
AU (1) AU536695B2 (OSRAM)
DE (1) DE3015107A1 (OSRAM)
FR (1) FR2455505A1 (OSRAM)
IT (1) IT1141345B (OSRAM)
NL (1) NL8002516A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2878181B1 (fr) * 2004-11-19 2008-10-24 Erca Formseal Sa Jeton en materiau thermoplastique pour le thermoformage d'au moins un recipient

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605506A (en) * 1949-04-09 1952-08-05 James A Miller Manufacture of plastic articles
US2743478A (en) * 1951-10-31 1956-05-01 Rca Corp Automatic molding apparatus
NL237970A (OSRAM) * 1959-04-09
US3412427A (en) * 1965-06-23 1968-11-26 Flusfeder Joseph Apparatus for manufacturing disc records
US3635622A (en) * 1969-01-08 1972-01-18 Capitol Records Automatic record press
US3622427A (en) * 1970-04-28 1971-11-23 Grace W R & Co Pad for testing the seal of a can
US3932097A (en) * 1975-01-30 1976-01-13 Lorence Press Record manufacturing equipment
FR2307642A1 (fr) * 1975-04-16 1976-11-12 Ugine Kuhlmann Procede de moulage de polytetrafluorethylene
DE2639118C2 (de) * 1976-08-31 1978-07-27 Polygram Gmbh, 2000 Hamburg Preßmatrize zur Herstellung von folien- oder plattenförmigen Informationsträgern
GB1524903A (en) * 1977-04-22 1978-09-13 Emi Ltd Production of disc records

Also Published As

Publication number Publication date
US4460656A (en) 1984-07-17
IT1141345B (it) 1986-10-01
AU5686380A (en) 1980-11-06
AT369576B (de) 1983-01-10
FR2455505B1 (OSRAM) 1984-11-30
FR2455505A1 (fr) 1980-11-28
KR840000297Y1 (en) 1984-02-23
DE3015107A1 (de) 1980-11-13
IT8021652A0 (it) 1980-04-24
AU536695B2 (en) 1984-05-17
ATA231780A (de) 1982-05-15

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BV The patent application has lapsed