FR2166969A6 - - Google Patents

Info

Publication number
FR2166969A6
FR2166969A6 FR7242362A FR7242362A FR2166969A6 FR 2166969 A6 FR2166969 A6 FR 2166969A6 FR 7242362 A FR7242362 A FR 7242362A FR 7242362 A FR7242362 A FR 7242362A FR 2166969 A6 FR2166969 A6 FR 2166969A6
Authority
FR
France
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
FR7242362A
Other languages
French (fr)
Inventor
F Seller
M Thorsteinson
E Martens
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.)
Spiroll Corp Ltd
Original Assignee
Spiroll Corp 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
Priority claimed from CA139,466A external-priority patent/CA973335A/en
Priority claimed from FR7217575A external-priority patent/FR2139556A5/fr
Application filed by Spiroll Corp Ltd filed Critical Spiroll Corp Ltd
Application granted granted Critical
Publication of FR2166969A6 publication Critical patent/FR2166969A6/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0011—Mould seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
    • B28B7/32—Cores; Mandrels adjustable, collapsible, or expanding inflatable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/46—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
FR7242362A 1972-04-12 1972-11-29 Expired FR2166969A6 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA139,466A CA973335A (en) 1972-04-12 1972-04-12 Machine for manufacturing hollow core structures of concrete and the like
FR7217575A FR2139556A5 (ja) 1972-05-17 1972-05-17

Publications (1)

Publication Number Publication Date
FR2166969A6 true FR2166969A6 (ja) 1973-08-17

Family

ID=25667033

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7242362A Expired FR2166969A6 (ja) 1972-04-12 1972-11-29

Country Status (1)

Country Link
FR (1) FR2166969A6 (ja)

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