Spacing ring for tubes in high temperature environment

Details Spacing ring for tubes in high temperature environment Spacing ring for tubes in high temperature environment

1989-12-01

1991-10-15

Arola, Dave W.

Pipe joints or couplings

Pipe to discreet nipple or sleeve to plate

Ball and socket

285345, 285917, F16L 5502

Patent

active

050568329

ABSTRACT:
A spacing ring for placement between a radially inwardly facing annular surface on a first member and a radially outwardly facing annular surface on a second member to maintain the first and second members in predetermined radially spaced relationship. The ring consists of a plurality of matted threads formed into an annular configuration. The ring has a radially inwardly facing surface to surroundingly engage the radially outwardly facing annular surface on the second member and a radially outwardly facing surface to be surroundingly engaged by the inwardly facing annular surface of the first member with the radially inwardly facing annular surface on the first member and the radially outwardly facing annular surface on the second member in axially overlapping relationship. The invention also contemplates a method of forming the spacing ring. The wool material is wrapped around an annular surface ona core bar. The wool material is both radially and axially compacted on the core bar with a predetermined compressive force.

REFERENCES:
patent: 4417733 (1983-11-01), Usher
patent: 4463959 (1984-08-01), Usher et al.
patent: 4559248 (1985-12-01), Sumiyoshi et al.
patent: 4559249 (1985-12-01), Arigaya et al.
patent: 4747624 (1988-05-01), Faber et al.

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