Pipe joints or couplings – For branched path – T-type
Patent
1995-06-27
1997-09-16
Melius, Terry Lee
Pipe joints or couplings
For branched path
T-type
285332, 2853344, 2853321, 285328, F16L 4108
Patent
active
056672551
ABSTRACT:
A joint structure for joining a branch member to a high pressure fuel rail which automatically aligns a spigot head of the branch member, if offset, upon tightening of a bolt and increases the rigidity of the spigot head to provide a sufficient degree of mechanical strength so that the spigot head can positively be "seated", and which insures connection between the branch member and the fuel rail if a fuel under substantially high pressure repeatedly flows over a prolonged period of time and if piping is subject to vibration and is free from leakage. In this joint structure, the branch member includes a spherical spigot end surface at its distal end, an annular flange axially spaced away from the spigot end surface, and a conical surface converging from the annular flange toward the spigot end surface.
REFERENCES:
patent: 4832376 (1989-05-01), Sugao
patent: 4893601 (1990-01-01), Sugao
patent: 4900180 (1990-02-01), Takikawa
patent: 5120084 (1992-06-01), Hashimoto
patent: 5143410 (1992-09-01), Takikawa
patent: 5169182 (1992-12-01), Hashimoto
patent: 5172939 (1992-12-01), Hashimoto
Casella Anthony J.
Hespos Gerald E.
Melius Terry Lee
Shackelford Heather
Usui Kokusai Sangyo Kaisha Ltd.
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