Pipe joints or couplings – Frangible element
Reexamination Certificate
2006-10-10
2006-10-10
Bochna, David (Department: 3679)
Pipe joints or couplings
Frangible element
C285S322000, C285S255000, C285S243000
Reexamination Certificate
active
07118136
ABSTRACT:
A sleeve-type pipe joint10has a joint body11having a cylindrical projection12adapted to be inserted into a pipe40to be connected; a ring member20having a larger inner diameter than an outer diameter of the pipe40; and a resiliently deformable, cylindrical sleeve member30moved into a space between the ring member20and the pipe40, at least one of an inner surface of the ring member20and an outer surface of the sleeve member30being provided with a tapered portion, such that when the sleeve member30is moved into the ring member20, the sleeve member30is deformed inward, resulting in tight connection of the inner surface of the pipe40to the outer surface of the cylindrical projection12. When the ring member20, the sleeve member30, and the joint body11are assembled, the ring member20and the sleeve member30resist detachment from the assembled pipe joint10.
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Academic Press, Academic Press Dictionary of Science and Technology, 1997, p. 467, showing definition of “collet”.
Bochna David
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Hitachi Metals Ltd.
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