Pipe joints or couplings – Packed – Socket
Reexamination Certificate
2006-09-05
2006-09-05
Dunwoody, Aaron (Department: 3679)
Pipe joints or couplings
Packed
Socket
C285S322000, C285S402000
Reexamination Certificate
active
07100948
ABSTRACT:
A tube coupling has a coupling body with a throughway open at one end to receive an end portion of a tube. A seal encircles the throughway to seal with the periphery and end of the tube and a cap is mounted on the body having a tube locking device rotatably mounted in the cap to engage and hold the tube in the cap. The cap and body have interengaging means which guide the cap on the body in an axial direction along the body with rotation of the cap from a first position in which a tube can be inserted through the cap and into the seal in the throughway and retained by the locking device and a second position advanced along the coupling body from said one end in which the tube end is held positively in engagement with the seal in the throughway. The locking device engages via a ring with the coupling body to resist rotation of the locking device with respect to the body whereby rotation of the cap between said the first and second positions does not cause the tube to rotate.
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Dunwoody Aaron
John Guest International Limited
Workman Nydegger
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