FR905388A - Contractable punch for molding and the like - Google Patents

Contractable punch for molding and the like

Info

Publication number
FR905388A
FR905388A FR905388DA FR905388A FR 905388 A FR905388 A FR 905388A FR 905388D A FR905388D A FR 905388DA FR 905388 A FR905388 A FR 905388A
Authority
FR
France
Prior art keywords
contractable
punch
molding
contractable punch
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Lucien Mazzoni
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 filed Critical
Application granted granted Critical
Publication of FR905388A publication Critical patent/FR905388A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D12/00—Producing frames
    • B29D12/02—Spectacle frames
    • 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
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/485—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling cores or mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR905388D 1940-01-19 1940-01-19 Contractable punch for molding and the like Expired FR905388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR905388T 1940-01-19

Publications (1)

Publication Number Publication Date
FR905388A true FR905388A (en) 1945-12-03

Family

ID=9405366

Family Applications (1)

Application Number Title Priority Date Filing Date
FR905388D Expired FR905388A (en) 1940-01-19 1940-01-19 Contractable punch for molding and the like

Country Status (1)

Country Link
FR (1) FR905388A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339242A (en) * 1963-11-12 1967-09-05 Ketch Plastics Ltd Collapsible tools for use in the moulding, casting or pressing of hollow articles
EP2957410A1 (en) * 2014-06-19 2015-12-23 Infiplast Retractable ring system for moulding parts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339242A (en) * 1963-11-12 1967-09-05 Ketch Plastics Ltd Collapsible tools for use in the moulding, casting or pressing of hollow articles
EP2957410A1 (en) * 2014-06-19 2015-12-23 Infiplast Retractable ring system for moulding parts
FR3022483A1 (en) * 2014-06-19 2015-12-25 Infiplast RETRACTABLE CORE SYSTEM FOR MOLDING WORKPIECES

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