Global Patent Index - EP 1159581 A1

EP 1159581 A1 2001-12-05 - A METHOD AND APPARATUS FOR PRESSURE WAVE SUPPRESSION IN SMALL-CHARGE BLASTING

Title (en)

A METHOD AND APPARATUS FOR PRESSURE WAVE SUPPRESSION IN SMALL-CHARGE BLASTING

Title (de)

VERFAHREN UND VORRICHTUNG ZUM UNSCHÄDLICH MACHEN VON EXPLOSIONSWELLEN BEIM SPRENGEN MIT KLEINER LADUNGEN

Title (fr)

PROCEDE ET APPAREIL DE SUPPRESSION DES ONDES DE PRESSION DANS L'ABATTAGE A L'EXPLOSIF A CHARGE FAIBLE

Publication

EP 1159581 A1 (EN)

Application

EP 00914327 A

Priority

  • IB 0000446 W
  • US 12427599 P
  • US 28952799 A
  • US 28873599 A

Abstract (en)

[origin: WO0054002A1] The present invention is directed to a method for selecting pressure wave suppression devices from among a menu of pressure wave suppression devices to satisfy the pressure wave requirements of a given job or application. The present invention is further directed to pressure wave suppression devices that can be used in the hole, at or near the opening of the hole, or at a distance from the hole to perform pressure wave and/or flyrock protection. The invention is particularly useful in suppressing airblast and other excavation equipment noise in urban areas.

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

F42D 1/18; E21C 37/14; F42D 3/04; F42D 5/045; F42D 5/05; F42D 5/055

IPC 8 full level (invention and additional information)

E21C 37/16 (2006.01); F42D 1/18 (2006.01); F42D 3/02 (2006.01); F42D 3/04 (2006.01); F42D 5/045 (2006.01); F42D 5/05 (2006.01); F42D 5/055 (2006.01)

CPC (invention and additional information)

F42D 5/055 (2013.01); E21C 37/16 (2013.01); F42D 1/18 (2013.01); F42D 3/04 (2013.01); F42D 5/045 (2013.01); F42D 5/05 (2013.01)

Citation (search report)

See references of WO 0054002A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 0054002 A1 20000914; AU 3185200 A 20000928; AU 3572100 A 20000928; AU 722846 B1 20000810; CA 2365675 A1 20000914; CA 2365678 A1 20000914; EP 1159581 A1 20011205; EP 1171749 A1 20020116; JP 2002539410 A 20021119; JP 2002539411 A 20021119; WO 0054001 A1 20000914

INPADOC legal status


2005-03-16 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20040901

2001-12-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20011003

2001-12-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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

2001-12-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI