Pipe joints or couplings – With indicator – alarm or inspection means
Patent
1990-05-02
1991-10-15
Arola, Dave W.
Pipe joints or couplings
With indicator, alarm or inspection means
285115, 285331, 285354, 285355, 285371, 285179, 285156, F16L 3500
Patent
active
050568310
ABSTRACT:
A fitting construction used for connection of pipes comprising a first pipe assembly having an inner pipe and an outer pipe separated by a wall flange, a corresponding second pipe having a threaded end, a slip-nut having internal threads on its wall part, and first and second gaskets. Either the inner pipe or the outer pipe of the first pipe assembly is provided threads thereon for threadedly engaging or connecting to the second pipe. The second gasket is shaped and sized to be placed on an end face of the second pipe and compressed between it and the wall flange. The outer pipe has an externally threaded end for threadedly engaging the slip-nut with the first gasket being compressed between a cap part of the slip-nut and an end face of the outer pipe. Both the first and second gaskets prevent fluid flowing within and through the inner pipe of the first pipe assembly and the second pipe from leaking out possibly via their connection lines along the outer wall of the inner pipe or the inner wall of the outer pipe 14.
REFERENCES:
patent: 279086 (1883-06-01), Emery
patent: 4507842 (1985-04-01), Werner
patent: 4599784 (1986-07-01), Canu et al.
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