US Patent 11708927 Pipe drilling device
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US Patent 11708927 Pipe drilling device
Article
A pipe drilling device includes a casing having a divided structure and externally fitted to a fluid pipe in a sealed manner, a process valve including a process valve body that comes into contact with and separates from a recessed valve seat portion provided inside a neck portion of the casing, a drilling machine including a cutter that is inserted into the casing and configured for drilling the fluid pipe in an uninterrupted flow state, and a cylindrical portion that is movable to open and close an opening of the recessed valve seat portion inside the neck portion.
Infobox
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Patent Jurisdiction
Patent Number
117089270
Date of Patent
July 25, 2023
0Patent Application Number
173128910
Date Filed
October 5, 2020
0Patent Citations
Patent Primary Examiner
CPC Code
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