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Current content: 156 511 693 patent documents

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200 241 new documents added

1 026 356 documents amended

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EP 0057308 B1 19850502 - APPARATUS AND METHOD OF BLASTING UNDERSEA ROCKS

Title (en)

APPARATUS AND METHOD OF BLASTING UNDERSEA ROCKS

Publication

EP 0057308 B1 19850502 (EN)

Application

EP 81303580 A 19810805

Priority

US 23008781 A 19810129

Abstract (en)

[origin: EP0057308A1] A method and apparatus for blasting undersea rocks uses a chamber (1) having a semi-spherical shape with a flat bottom plate (3), which in operation is placed against the surface of the rocks. The external surface of the semi-spherical container is moulded with a layer of concrete (5).

IPC 1-7

F42B 3/00; F42D 3/04

IPC 8 full level

F42B 3/00 (2006.01); F42D 3/04 (2006.01)

CPC (source: EP)

F42B 3/00 (2013.01); F42D 3/04 (2013.01)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0057308 A1 19820811; EP 0057308 B1 19850502; AT E13094 T1 19850515; DE 3170281 D1 19850605

DOCDB simple family (application)

EP 81303580 A 19810805; AT 81303580 T 19810805; DE 3170281 T 19810805