Composite pipe, process for producing the same, and heat pipe us

Details Composite pipe, process for producing the same, and heat pipe us Composite pipe, process for producing the same, and heat pipe us

1985-12-19

1988-03-29

Thronson, Mark John

Pipes and tubular conduits

Distinct layers

Coated

138140, 165180, F16L 918

Patent

active

047336994

ABSTRACT:
A composite pipe is proposed which is comprised of an aluminum pipe and a lead pipe formed in the aluminum pipe in direct contact with the inner wall of the aluminum pipe. The composite pipe is produced by supplying a lead pipe to a continuous aluminum extrusion machine which can extrude while enveloping a long object, to form an aluminum pipe on the outer periphery of the lead pipe. A heat pipe using the composite pipe is also proposed.

REFERENCES:
patent: 582258 (1897-05-01), Brighton et al.
patent: 3878871 (1975-04-01), Anthony et al.
patent: 3921710 (1975-11-01), Katayama
patent: 4023557 (1977-05-01), Thorne et al.
patent: 4233101 (1980-11-01), Scragg et al.
patent: 4338997 (1982-07-01), Krueger et al.
The Encyclopedia American, Int. Ed., American Corp., pp. 642-647.

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