Pipe joints or couplings – End to side or plate
Reexamination Certificate
2006-11-21
2006-11-21
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
End to side or plate
C285S143100, C285S384000, C285S386000, C123S456000
Reexamination Certificate
active
07137652
ABSTRACT:
In a pipe joint structure, a second screw thread formed on an outer circumference end of a joint member is screwed deep into a first screw thread formed on an inner circumference of a cylindrical joint fitting member whose axial end is bonded to a common rail body so that a second flat surface at an axial end of the joint member is pressed against a first flat surface on an outer circumference of the common rail body to form a fluid tight sealing surface therebetween in a state that a fluid passage opened to the second flat surface communicates with a through-hole opened to the first flat surface. Accordingly, even if a position of the joint fitting member to the common rail body is slightly shifted, fluid tight sealing between the first and second flat surfaces is assured.
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Kondo Jun
Nishiwaki Tadashi
LandOfFree
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