Pipe-flange coupling with irreversible screwing at rotation

Details Pipe-flange coupling with irreversible screwing at rotation Pipe-flange coupling with irreversible screwing at rotation

1986-06-11

1987-05-12

Arola, Dave W.

Pipe joints or couplings

Particular interface

Interlocked or overlapped

285342, 285356, 285363, F16L 2500

Patent

active

046644253

ABSTRACT:
The pipe (2) is inserted in the through-hole of the flange (1) and the pipe-flange seal is assured by a fixing ring nut (6) screwed into the upper portion (5) of the hole.
The hole, in the part opposite the threaded area (5), has an area (4) with a diameter equal to that of the pipe (2) and a truncated-cone coupling area (4) between the two areas (5) and (7). A ring (8) of elastomeric material is inserted inside the truncated-cone portion (7) and an annular projection (9) on the pipe (2) acts thereon, pushed by the screwing action of the ring nut (6).

REFERENCES:
patent: 2314867 (1943-03-01), Boynton
patent: 2560263 (1951-07-01), Wiegand et al.
patent: 2983506 (1961-05-01), Bertsch et al.

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