Pipe joints or couplings – For branched path – T-type
Patent
1987-02-17
1988-03-22
Arola, Dave W.
Pipe joints or couplings
For branched path
T-type
285353, 285917, F16L 4700
Patent
active
047324147
ABSTRACT:
A joint for connecting first and second co-axial pipes each having inner and outer pipes with a male joint portion receiving the pipes of one co-axial pipe and a female joint portion receiving the pipes of the other co-axial pipe. The end surfaces of the two portions have opposed protrusions which sealing engage a metallic packing.
REFERENCES:
patent: 2050137 (1936-08-01), Walsh
patent: 3503634 (1970-03-01), Cadiou
patent: 3521910 (1970-07-01), Callahan et al.
patent: 3617075 (1971-11-01), Van Horn
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