Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1987-04-17
1988-09-13
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 30, 277118, 277191, 277227, F16J 1508, F16J 1528
Patent
active
047704268
ABSTRACT:
A sealing structure for the upper end of a rising or conveying pipeline, which sealing structure is provided between the riser pipe hanger and the riser pipe cover and aims at providing a metallic seal whose safety is superior to that of the seals known up to now. This is achieved by the insertion of metallic O-ring seals (13, 13') in annular spaces of triangular cross section of which one end wall is formed by the inclined contact pressure shoulder (11) of a thrust collar (8,9) which can be subjected to pressure by means of clamping spindles (14, 14') arranged essentially at right angles in relation to the rise pipe axis (10) and screwed into the riser pipe cover (4), whereby an additional pressing of the seals (13, 13') is made possible.
REFERENCES:
patent: 4218067 (1980-08-01), Halling
patent: 4290614 (1981-09-01), Moll
patent: 4384730 (1983-05-01), Diehl
patent: 4390186 (1983-06-01), McGee et al.
patent: 4561662 (1985-12-01), de Villepoix et al.
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