Pipe joints or couplings – Deformed – By separate deformable element
Reexamination Certificate
2011-04-12
2011-04-12
Bochna, David E (Department: 3679)
Pipe joints or couplings
Deformed
By separate deformable element
C285S342000, C285S348000
Reexamination Certificate
active
07922217
ABSTRACT:
A ferrule for a metal tube fitting includes an annular body having a generally cylindrical radially interior wall extending through the center of the ferrule. An outer radial wall extends from the ferrule front end to a rearward flange portion of the annular body. The outer radial wall has: a first tapered portion extending from the ferrule front end with an increasing radial dimension towards the rearward flange portion, the first tapered portion extending to a crown portion, the crown portion including a convex surface that tapers radially inwardly towards the rearward flange portion.
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Office action from Japanese Application No. 571019/01 dated Sep. 14, 2010.
Kuhns Howard C. B.
Williams Peter C.
Bochna David E
Calfee Halter & Griswold LLP
Swagelok Company
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