Global patent index - EP 1015202 A1

EP 1015202 A1 2000-07-05 - MACHINE FOR EXTRUDING CONCRETE ELEMENTS

Title (en)

MACHINE FOR EXTRUDING CONCRETE ELEMENTS

Title (de)

MASCHINE ZUM EXTRUDIEREN VON BETONELEMENTEN

Title (fr)

EXTRUDEUSE DESTINEE AU MOULAGE D'ELEMENTS CREUX

Publication

EP 1015202 A1 (EN)

Application

EP 98902313 A

Priority

  • NO 9800038 W
  • NO 970478 A

Abstract (en)

[origin: WO9835801A1] A means of extruding machine for continuous moulding of prestressed hollow elements and slabs of concrete, of the kind comprising an extruding machine provided with wheels (2, 4) resting on a floor or steel bench (5). The machine comprises a front operational unit, a suitably vertical hopper (10) for supply of fresh concrete, and which lowermost opens into a horizontal, in direction rearwards directed moulding chamber (12). Through the moulding chamber extends a stationary, horizontally directed support shaft, which at the rear end supports a forming tube (20) for the concrete. On the support shaft is rotatably supported a feeding screw (16, 14) for feeding and compressing the concrete in rearward direction towards the forming tube (20), and a vibrator (44) situated in connection with the forming tube (40) and optionally vibrators situated elsewhere on the machine. In accordance with the invention, the forming tube (20) including the accenter (64) is connected to the rear end of the support shaft via an elastic damper member (50), such that the vibrator (54, 64) is mechanically separated from the remaining part of the extruding machine.

IPC 1-7 (main, further and additional classification)

B28B 3/22

IPC 8 full level (invention and additional information)

B28B 1/08 (2006.01)

CPC (invention and additional information)

B28B 1/084 (2013.01); B28B 3/228 (2013.01)

Citation (search report)

See references of WO 9835801A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9835801 A1 19980820; CA 2278769 A1 19980820; EP 1015202 A1 20000705; NO 304014 B1 19981012; NO 970478 A 19980804; NO 970478 D0 19970203

INPADOC legal status

2003-06-11 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20021127

2002-07-03 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020516

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19990728

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE