Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Young Youl Ha0
Dong Gun Lee0
Hyun Goo Kim0
Sung June Bae0
Date of Patent
February 4, 2020
Patent Application Number
15757310
Date Filed
August 31, 2016
Patent Primary Examiner
Patent abstract
A drilling apparatus is provided. The drilling apparatus according to one aspect of the present invention comprises: first and second moving modules; first to third drawworks for vertically moving the first and second moving modules; a wire for successively connecting the first drawwork, the first moving module, the second drawwork, the second moving module and the third drawwork; a first fixing drum positioned between the first drawwork and the first moving module so as to support the wire; and a second fixing drum positioned between the second moving module and the third drawwork so as to support the wire.
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