Patent ID: 6237969
Filing Date: 2001-05-29
Classification: F16L,Y10S

Abstract:
A connector for connecting a spirally-corrugated pipe to a through hole portion of a wall, said connector comprising:a tubular connector body including,a tubular portion for attachment to said through hole portion of the wall,a corrugated portion having a spiral projection which defines an inverse thread relative to a spiral formed on an outer periphery of said pipe, said inverse thread having a pitch smaller than a pitch of said spiral of said pipe, andan outwardly-flared tapered portion interposed between said tubular portion and said corrugated portion,a holder for holding said pipe to said tubular connector body, said holder including,an outer spiral projection formed on an outer peripheral surface of said holder and threadedly engaged with said corrugated portion, andan inner spiral projection formed on an inner peripheral surface of said holder and threadedly engaged with said spiral formed on the outer periphery of said pipe; anda packing member disposed between said taper portion of said tubular connector body and a distal end of said outer periphery surface of said pipe for sealing a gap defined between said tubular connector body and said pipe.