FR2252201A1 - Press tool for moulding thermoplastic record discs - incorporating a sintered filter to develop symmetrical heat transfer fluid flow - Google Patents

Press tool for moulding thermoplastic record discs - incorporating a sintered filter to develop symmetrical heat transfer fluid flow

Info

Publication number
FR2252201A1
FR2252201A1 FR7438240A FR7438240A FR2252201A1 FR 2252201 A1 FR2252201 A1 FR 2252201A1 FR 7438240 A FR7438240 A FR 7438240A FR 7438240 A FR7438240 A FR 7438240A FR 2252201 A1 FR2252201 A1 FR 2252201A1
Authority
FR
France
Prior art keywords
fluid flow
fluid
distribution
press tool
incorporating
Prior art date
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.)
Withdrawn
Application number
FR7438240A
Other languages
English (en)
French (fr)
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.)
Decca Ltd
Original Assignee
Decca 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.)
Filing date
Publication date
Application filed by Decca Ltd filed Critical Decca Ltd
Publication of FR2252201A1 publication Critical patent/FR2252201A1/fr
Withdrawn legal-status Critical Current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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • 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
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
    • B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)
  • Press Drives And Press Lines (AREA)
FR7438240A 1973-11-22 1974-11-21 Press tool for moulding thermoplastic record discs - incorporating a sintered filter to develop symmetrical heat transfer fluid flow Withdrawn FR2252201A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5430573 1973-11-22

Publications (1)

Publication Number Publication Date
FR2252201A1 true FR2252201A1 (en) 1975-06-20

Family

ID=10470587

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438240A Withdrawn FR2252201A1 (en) 1973-11-22 1974-11-21 Press tool for moulding thermoplastic record discs - incorporating a sintered filter to develop symmetrical heat transfer fluid flow

Country Status (6)

Country Link
AU (1) AU7531674A (nl)
BE (1) BE822470A (nl)
DE (1) DE2455223A1 (nl)
FR (1) FR2252201A1 (nl)
NL (1) NL7415194A (nl)
SE (1) SE7414639L (nl)

Also Published As

Publication number Publication date
NL7415194A (nl) 1975-05-26
DE2455223A1 (de) 1975-05-28
AU7531674A (en) 1976-05-13
BE822470A (fr) 1975-03-14
SE7414639L (nl) 1975-05-23

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Legal Events

Date Code Title Description
ST Notification of lapse