Duplex metal pipe for damping

Details Duplex metal pipe for damping Duplex metal pipe for damping

1991-04-18

1993-10-19

Gilreath, Stanley N.

Pipes and tubular conduits

Distinct layers

Spaced

F16L 914

Patent

active

052536807

ABSTRACT:
A duplex metal pipe for damping wherein an inner pipe is inserted into an outer pipe with a clearance of 10 .mu.m to 150 .mu.m provided between an inner surface of the outer pipe and an outer surface of the inner pipe. The outer pipe and said inner pipe are formed of a steel pipe.

REFERENCES:
patent: 3196905 (1965-07-01), Hills
patent: 3209856 (1965-10-01), Saunders
patent: 4185463 (1980-01-01), Tanahashi et al.
patent: 4410013 (1983-10-01), Sasaki et al.

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