Swivel joint for fluid pipes

Details Swivel joint for fluid pipes Swivel joint for fluid pipes

1986-12-23

1988-07-12

Reese, Randolph A.

Pipe joints or couplings

Pipe to discreet nipple or sleeve to plate

285187, 285272, 285332, F16L 3900

Patent

active

047565594

ABSTRACT:
A swivel joint for connecting fluid pipes includes a plurality of elements placed one upon another. Each element includes a cylindrical stationary portion and a cylindrical rotatable portion surrounding the stationary portion and supported rotatably thereon by a pair of vertically spaced apart sliding bearings. The two portions define therebetween an annular fluid passage having a fluid inlet to which a pipe is connected and a fluid outlet to which another pipe is connected. The rotatable portion has a pair of inclined edge surfaces. Each bearing has an inclined edge surface which is complementary to one of the inclined edge surfaces of the rotatable portion and which cooperates therewith to align the axis of rotation of the rotatable portion with the center of the stationary portion. The two portions have therebetween a clearance for absorbing any positional variation by thermal expansion thereof relative to each other.

REFERENCES:
patent: 1046600 (1912-12-01), Kahler
patent: 4052090 (1977-10-01), Stafford
patent: 4111467 (1978-09-01), de Fremery
patent: 4126336 (1978-11-01), Ortloff et al.
patent: 4239083 (1980-12-01), Silberman et al.
patent: 4280720 (1981-07-01), Lomenech et al.
patent: 4289336 (1981-09-01), Bajeux
patent: 4306741 (1981-12-01), Foolen
patent: 4405162 (1983-09-01), Williams
patent: 4598735 (1986-07-01), Pedersen
patent: 4602806 (1986-07-01), Saliger
patent: 4647076 (1987-03-01), Pollack et al.

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