Pipe joints or couplings – Nonmetal to metal – Internal member
Reexamination Certificate
2006-03-21
2006-03-21
Bochna, David (Department: 3679)
Pipe joints or couplings
Nonmetal to metal
Internal member
C285S321000, C285S347000, C285S256000, C285S386000
Reexamination Certificate
active
07014215
ABSTRACT:
A quick connect hose coupling for connecting a hose to a fixture of the type having a hose stem portion including a hose insert portion, having a fixture portion including a fixture connection portion, and having a joinder portion is disclosed. The joinder portion includes a male connection portion and a female connection portion. Each of male connection and female connection portions are adapted to join in a sealing and locking manner upon being pushed together. The coupling further includes threads and wrench mating flats adapted to disconnect the hose from the fixture. It is improved by the male connection portion being a unitary structure having a leading support cylindrical surface, a following support cylindrical surface, and a transition surface intermediate therein between. The leading support cylindrical surface has a leading radius. The following support cylindrical surface has a following radius. The following radius is larger than the leading radius.
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Cooper Adrian R.
Keast Geoffrey R.
Leasure Randall M.
Bochna David
Castleman, Esq. C. H.
Dunlap P. N.
The Gates Corporation
Thurnau, Esq. J. A.
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