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Current content: 157 337 350 patent documents

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219 431 new documents added

1 247 852 documents amended

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EP 0172065 B1 19871007 - PROTECTION DEVICE FOR DRILLING TOOLS, AND COMPOSITE WALL COMPRISING SUCH A DEVICE

Title (en)

PROTECTION DEVICE FOR DRILLING TOOLS, AND COMPOSITE WALL COMPRISING SUCH A DEVICE

Publication

EP 0172065 B1 19871007 (FR)

Application

EP 85401408 A 19850710

Priority

FR 8411728 A 19840724

Abstract (en)

[origin: EP0172065A1] 1. Device for protection against perforating tools such for instance as coring tools and of the type comprising a support fitted with balls (2) incorporated and mounted for free rotation in this support, characterized in that the said support consists of at least one grating (G) the openings of which ensure the positioning and/or the fastening of closed boxes (3) containing each one a bal (2).

IPC 1-7

E05G 1/024

IPC 8 full level

E05G 1/024 (2006.01)

CPC (source: EP)

E05G 1/024 (2013.01)

Designated contracting state (EPC)

AT BE CH DE GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0172065 A1 19860219; EP 0172065 B1 19871007; AT E30180 T1 19871015; DE 3560755 D1 19871112; FR 2568305 A1 19860131; FR 2568305 B1 19861024

DOCDB simple family (application)

EP 85401408 A 19850710; AT 85401408 T 19850710; DE 3560755 T 19850710; FR 8411728 A 19840724