FI821813A0 - PRESS MASK FOR FRAMSTAELLNING AV LAONGSTRAECKTA PRODUKTER AV BETONG - Google Patents

PRESS MASK FOR FRAMSTAELLNING AV LAONGSTRAECKTA PRODUKTER AV BETONG

Info

Publication number
FI821813A0
FI821813A0 FI821813A FI821813A FI821813A0 FI 821813 A0 FI821813 A0 FI 821813A0 FI 821813 A FI821813 A FI 821813A FI 821813 A FI821813 A FI 821813A FI 821813 A0 FI821813 A0 FI 821813A0
Authority
FI
Finland
Prior art keywords
concrete
conveyor
mold
lower edge
elements
Prior art date
Application number
FI821813A
Other languages
Finnish (fi)
Other versions
FI821813A (en
FI71088B (en
FI71088C (en
Inventor
Christopher B Bunn
Original Assignee
Christopher B Bunn
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23260109&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI821813(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Christopher B Bunn filed Critical Christopher B Bunn
Publication of FI821813A0 publication Critical patent/FI821813A0/en
Publication of FI821813A publication Critical patent/FI821813A/en
Publication of FI71088B publication Critical patent/FI71088B/en
Application granted granted Critical
Publication of FI71088C publication Critical patent/FI71088C/en

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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/084—Producing shaped prefabricated articles from the material by vibrating or jolting the vibrating moulds or cores being moved horizontally for making strands of moulded articles
    • 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
    • B28B3/224—Twin screw extruders, e.g. double shaft extruders
    • 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
    • B28B3/228—Slipform casting extruder, e.g. self-propelled extruder

Abstract

An extrusion machine for making elongated articles of concrete by forcing the concrete through a mold, the article having a relatively large core, has a rotatable spiral conveyor (20, 22) which extends longitudinally of the mold (26) and moves the concrete through the mold. Non-rotatable forming elements (28, 30, 32) in the mold (26) form the internal cavity, which elements are positioned immediately downstream of the conveyor with their lower edge not more than 10% of the forming element below the lower edge of the conveyor. The lower edge and lower side of the forming elements (28, 30, 32) are free of any substantial ramp, and a ramp (34) on the first forming element (28) extends upwardly from the downstream end of the conveyor (20, 22). The conveyor forces the concrete over the forming elements to form the concrete article, and the machine is moved forwardly by reaction as the concrete is forced against the molded concrete.
FI821813A 1981-11-20 1982-05-21 Press machine for the production of elongated concrete products FI71088C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32364881A 1981-11-20 1981-11-20
US32364881 1981-11-20

Publications (4)

Publication Number Publication Date
FI821813A0 true FI821813A0 (en) 1982-05-21
FI821813A FI821813A (en) 1983-05-21
FI71088B FI71088B (en) 1986-08-14
FI71088C FI71088C (en) 1990-02-13

Family

ID=23260109

Family Applications (1)

Application Number Title Priority Date Filing Date
FI821813A FI71088C (en) 1981-11-20 1982-05-21 Press machine for the production of elongated concrete products

Country Status (14)

Country Link
EP (1) EP0080333B1 (en)
JP (1) JPS58131020A (en)
KR (1) KR860001642B1 (en)
AT (1) ATE25349T1 (en)
AU (1) AU539819B2 (en)
CA (1) CA1193834A (en)
DE (1) DE3275360D1 (en)
DK (1) DK158073C (en)
EG (1) EG15859A (en)
FI (1) FI71088C (en)
IE (1) IE53675B1 (en)
IN (1) IN157614B (en)
MX (1) MX157583A (en)
NO (1) NO157289C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85102514B (en) * 1985-04-08 1986-11-05 核工业部建筑机械开发公司 Single slab compression of prestressed concrete hollow slab
US5123831A (en) * 1991-05-16 1992-06-23 Esa Enqvist Concrete extrusion machine
CA2204978A1 (en) * 1997-05-09 1998-11-09 Ultra Span Technologies Inc. Low noise hollow core slab extruder
EP0968799A1 (en) * 1998-07-01 2000-01-05 Euromac S.r.l. Extruder for products in reinforced concrete
FI19991792A (en) * 1999-08-23 2001-02-24 Valkeakoski Extec Oy Ltd Method and arrangement for making a concrete product and a series of concrete products
FI20021092A (en) * 2002-06-07 2003-12-08 Consolis Technology Oy Ab Process and apparatus for casting concrete products
FI121943B (en) 2007-11-21 2011-06-15 Outotec Oyj dispenser
CN103171030B (en) * 2013-03-28 2015-09-09 南京益生宜居建筑材料科技有限公司 Concrete core slab continuous extruder
CN103158190B (en) * 2013-03-28 2015-09-09 南京益生宜居建筑材料科技有限公司 The core rod extruding use in storehouse of Extruder for concrete core slab
CN103171031B (en) * 2013-03-28 2015-06-24 南京益生宜居建筑材料科技有限公司 Continuous production method for concrete hollow slab

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159897A (en) * 1961-07-10 1964-12-08 Fredrick G Ellis Machine for extruding hollow cored concrete sections
CA910030A (en) * 1969-12-04 1972-09-19 Putti George Extrusion machine for making articles of cement-like material
US3926541A (en) * 1970-06-29 1975-12-16 Frederick M Hewitt Extruder with interacting auger and care means
GB1454050A (en) * 1974-02-11 1976-10-27 Spiroll Corp Ltd Pile extruder
US3904341A (en) * 1975-08-29 1975-09-09 Dyform Concrete Prestressed Lt Machine for extruding cement-like material into articles
CA1100297A (en) * 1977-10-28 1981-05-05 Norman W. Bunn Reinforcing member support in concrete extruders
JPS583801B2 (en) * 1979-09-12 1983-01-22 ダイフオ−ム・エンジニアリング・リミテツド concrete extrusion molding machine

Also Published As

Publication number Publication date
DK158073C (en) 1990-08-20
EG15859A (en) 1986-12-30
ATE25349T1 (en) 1987-02-15
DK158073B (en) 1990-03-26
NO823868L (en) 1983-05-24
CA1193834A (en) 1985-09-24
EP0080333A2 (en) 1983-06-01
DK518082A (en) 1983-05-21
DE3275360D1 (en) 1987-03-12
IE822664L (en) 1983-05-20
AU539819B2 (en) 1984-10-18
EP0080333B1 (en) 1987-02-04
NO157289B (en) 1987-11-16
MX157583A (en) 1988-12-02
KR860001642B1 (en) 1986-10-15
IN157614B (en) 1986-05-03
NO157289C (en) 1988-02-24
IE53675B1 (en) 1989-01-04
KR840002290A (en) 1984-06-25
JPS58131020A (en) 1983-08-04
FI821813A (en) 1983-05-21
AU9071182A (en) 1983-05-26
JPS6315122B2 (en) 1988-04-04
EP0080333A3 (en) 1984-10-17
FI71088B (en) 1986-08-14
FI71088C (en) 1990-02-13

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Legal Events

Date Code Title Description
MA Patent expired

Owner name: BUNN, CHRISTOPHER B.