Title:
【発明の名称】ボーリング装置
Document Type and Number:
Japanese Patent JPH02504410
Kind Code:
A
Abstract:
PCT No. PCT/EP89/00256 Sec. 371 Date Nov. 8, 1989 Sec. 102(e) Date Nov. 8, 1989 PCT Filed Mar. 11, 1989 PCT Pub. No. WO89/08769 PCT Pub. Date Sep. 21, 1989.A drilling apparatus, especially for drilling blast holes, includes a carriage, a drilling rod, a pressure-operated drive system movable along the carriage for transmitting a back and forth rotation to the drilling rod, a flushing head arranged on the carriage and movable either with or apart from the drilling rod, and a hydraulically operated in-hole hammer arranged on a front end of the drilling rod.
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Inventors:
Haushell, Heinrich Rudolf
Etsukei, Fried Helm
Etsukei, Fried Helm
Application Number:
JP50294689A
Publication Date:
December 13, 1990
Filing Date:
March 11, 1989
Export Citation:
Assignee:
Rudolf Haushel und Sene Gesersyaft Mitz Besilyenktel Haftung und Company Commande Geselsyaft
International Classes:
E21B1/00; E21B1/26; E21B3/025; E21B4/20; E21B7/02; E21B17/10; E21B17/18; (IPC1-7): E21B7/02; E21C3/20
Attorney, Agent or Firm:
Toshio Yano (2 outside)