Title:
【発明の名称】アイアン・ラフネック
Document Type and Number:
Japanese Patent JP2002543315
Kind Code:
A
Abstract:
An iron roughneck has a pair of upper jaws carrying pipe gripping dies for gripping tool joints. The jaws have recesses formed on each side of the pipe gripping dies to receive spinning rollers. By positioning the spinning rollers in the upper jaws at the same level as pipe gripping dies, the spinning rollers are able to engage the pipe closer to the lower jaws and thus can act on the tool joint rather than on the pipe stem.
Inventors:
Mason david bee
Boyad Jeff George
Camp Johannes Henricus Antonius Marie
Rolling Ronaldas Richardas Maria
Boyad Jeff George
Camp Johannes Henricus Antonius Marie
Rolling Ronaldas Richardas Maria
Application Number:
JP2000615483A
Publication Date:
December 17, 2002
Filing Date:
May 02, 2000
Export Citation:
Assignee:
Verco Eye/Pie Incorporated
International Classes:
E21B19/16; (IPC1-7): E21B19/16
Attorney, Agent or Firm:
Minoru Nakamura (9 outside)
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