DK173581B1 - Krympekerne - Google Patents

Krympekerne Download PDF

Info

Publication number
DK173581B1
DK173581B1 DK199501165A DK116595A DK173581B1 DK 173581 B1 DK173581 B1 DK 173581B1 DK 199501165 A DK199501165 A DK 199501165A DK 116595 A DK116595 A DK 116595A DK 173581 B1 DK173581 B1 DK 173581B1
Authority
DK
Denmark
Prior art keywords
shell
shrink
wedge element
tube
ribs
Prior art date
Application number
DK199501165A
Other languages
Danish (da)
English (en)
Other versions
DK116595A (da
Inventor
Johannes Hvidegaard
Original Assignee
Pedershaab As
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 Pedershaab As filed Critical Pedershaab As
Priority to DK199501165A priority Critical patent/DK173581B1/da
Priority to AU72795/96A priority patent/AU7279596A/en
Priority to DE69632260T priority patent/DE69632260T2/de
Priority to AT96934445T priority patent/ATE264736T1/de
Priority to EP96934445A priority patent/EP0855951B1/de
Priority to PCT/DK1996/000441 priority patent/WO1997014544A1/en
Publication of DK116595A publication Critical patent/DK116595A/da
Application granted granted Critical
Publication of DK173581B1 publication Critical patent/DK173581B1/da

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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/86—Cores
    • B28B21/88—Cores adjustable, collapsible or expansible

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Materials For Medical Uses (AREA)
  • Wrappers (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Laminated Bodies (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Dental Preparations (AREA)
DK199501165A 1995-10-16 1995-10-16 Krympekerne DK173581B1 (da)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DK199501165A DK173581B1 (da) 1995-10-16 1995-10-16 Krympekerne
AU72795/96A AU7279596A (en) 1995-10-16 1996-10-15 A collapsible core
DE69632260T DE69632260T2 (de) 1995-10-16 1996-10-15 Zusammenklappbarer kern
AT96934445T ATE264736T1 (de) 1995-10-16 1996-10-15 Zusammenklappbarer kern
EP96934445A EP0855951B1 (de) 1995-10-16 1996-10-15 Zusammenklappbarer kern
PCT/DK1996/000441 WO1997014544A1 (en) 1995-10-16 1996-10-15 A collapsible core

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK116595 1995-10-16
DK199501165A DK173581B1 (da) 1995-10-16 1995-10-16 Krympekerne

Publications (2)

Publication Number Publication Date
DK116595A DK116595A (da) 1997-04-17
DK173581B1 true DK173581B1 (da) 2001-03-26

Family

ID=8101728

Family Applications (1)

Application Number Title Priority Date Filing Date
DK199501165A DK173581B1 (da) 1995-10-16 1995-10-16 Krympekerne

Country Status (6)

Country Link
EP (1) EP0855951B1 (de)
AT (1) ATE264736T1 (de)
AU (1) AU7279596A (de)
DE (1) DE69632260T2 (de)
DK (1) DK173581B1 (de)
WO (1) WO1997014544A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005032781A1 (en) * 2003-10-07 2005-04-14 Vertech Hume Pty Ltd Vertical moulding of long concrete articles
DE102012220814A1 (de) 2012-11-14 2014-05-15 Johann Schlüsselbauer Schrumpfkern für eine Form zur Herstellung von hohlen Betonkörpern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE212494C (de) *
US1101204A (en) * 1913-01-30 1914-06-23 C F Massey Company Collapsible core for concrete pipes.
US1540185A (en) * 1924-07-21 1925-06-02 Claude G Richards Mold
US3570802A (en) * 1968-10-10 1971-03-16 Hydro Conduit Corp Concrete-molding apparatus having an inner mold member with variable dimension periphery

Also Published As

Publication number Publication date
ATE264736T1 (de) 2004-05-15
WO1997014544A1 (en) 1997-04-24
EP0855951A1 (de) 1998-08-05
DK116595A (da) 1997-04-17
EP0855951B1 (de) 2004-04-21
DE69632260D1 (de) 2004-05-27
DE69632260T2 (de) 2005-06-23
AU7279596A (en) 1997-05-07

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