Title:
DRILL DEVICE FOR REMOVING PLUGGING INSIDE PIPE
Document Type and Number:
WIPO Patent Application WO/2019/045334
Kind Code:
A1
Abstract:
The present invention relates to a device which can safely remove plugging even in a state where combustible gas or combustible liquid remains inside a pipe and delicately remove plugging even with a small force.
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Inventors:
PARK JONG HYUK (KR)
Application Number:
PCT/KR2018/009457
Publication Date:
March 07, 2019
Filing Date:
August 17, 2018
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
B08B9/043; F16H1/14; F16H1/16; F16L55/00
Foreign References:
| KR950002929Y1 | 1995-04-17 | |||
| EP2378179B1 | 2017-07-19 | |||
| US20110154594A1 | 2011-06-30 | |||
| US20100314129A1 | 2010-12-16 | |||
| KR100609648B1 | 2006-08-08 |
Other References:
See also references of EP 3636359A4
Attorney, Agent or Firm:
P&P PATENT LAW FIRM (KR)
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