Self-centering tubular connection

Details Self-centering tubular connection Self-centering tubular connection

2005-05-10

2005-05-10

Bochna, David E. (Department: 3629)

Pipe joints or couplings

End to side or plate

Sput

C285S124100, C285S351000, C285S332000

Reexamination Certificate

active

06890005

ABSTRACT:
A tubular connection for centering a tube within a female connecting block that has a throughbore with a chamfer, wherein a transition surface is defined between the chamfer and the throughbore. The tube has an upset bead, a tapered portion narrowing from the upset bead, and an end-form extending from the tapered portion, the end-form having an annular groove with an O-ring therein. The connection further includes a device for securing the tube within the female connecting block whereby the upset bead of the tube is caused to abut the female connecting block. The tube locates inside the female connecting block such that the end-form seals via the O-ring inside the throughbore of the female connecting block and the tapered portion of the tube sealingly engages against the transition surface of the female connecting block to keep the tube centered within the female connecting block and to form a secondary fluid-tight seal.

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