Nova Patents
AT326609T

Drilling tool

Abstract

The present invention relates to a suitable guide tube and the drill string for mechanical handling of the rock drilling rig (rig for rock drilling). The guide tube 10 includes a female thread in the recess 32 of the first end portion 11, 16, the male screw 15 and the flushing medium to percussion top for hammer drilling in the second end portion 13 drilling bits, it comprises a through flush channel (19) for conveying. The recess has an axial length (L1). The guide tube 10 includes a cylindrical waist portion 23 near the first end (11). Waist portion 23 has an axial length of the recess (32) (L1) is longer than the axial extension portion (L2).

Term

No projected expiry on record.

  1. Priority
  2. Filed
  3. Granted
  4. Today

17 members in 10 offices

This recordMember, by publication datePriority claim

Priority claims1

Priority claims
DocumentOfficeKindDate
0003916SwedenA

Members17

Family members, oldest first
DocumentOfficeKind
SE0003916D0SwedenD0
SE0003916LSwedenL
SE516730C2SwedenC2
US2002050362A1United States of AmericaA1
CA2426020A1CanadaA1
WO0236925A1World Intellectual Property Organization (WIPO)A1
AU9612101AAustraliaA
EP1328700A1European Patent Office (EPO)A1
KR20040002845ARepublic of KoreaA
US6681875B2United States of AmericaB2
ZA200303068BSouth AfricaB
EP1328700B1European Patent Office (EPO)B1
RU2277162C2Russian FederationC2
AT326609TThis recordAustriaT
ATE326609T1AustriaT1
KR100841034B1Republic of KoreaB1
CA2426020CCanadaC