Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ryou Kashihara0
Yoshirou Shimada0
Hiroki Etou0
Date of Patent
June 30, 2009
0Patent Application Number
117242230
Date Filed
March 15, 2007
0Patent Primary Examiner
Patent abstract
A bolt includes a main body and a spring pin. The main body includes a head and a shaft. The spring pin includes a base portion and an end portion. The shaft includes a portion of external thread and a hollow portion. The head includes a top surface and a hole opened in the top surface. The hole is connected to the hollow portion. The base portion is arranged in the hollow potion to move along an axis of the main body. The end portion is arranged in the hole to move along the axis. The spring pin is energized toward a side of the head such that the end portion protrudes beyond the top surface. The end portion is electrically connected to the portion of external thread.
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