Pipe fitting comprising at least two layers of different...

Details Pipe fitting comprising at least two layers of different... Pipe fitting comprising at least two layers of different...

2003-01-20

2008-12-30

Bochna, David E (Department: 3679)

Pipe joints or couplings

Nonmetal to metal

Internal member

C285S133110, C285S179000

Reexamination Certificate

active

07469935

ABSTRACT:
A pipe fitting for connecting at least two pipes, the pipe fitting (1) comprising at least two layers. An innermost layer (2) and an outer layer (3) are of different materials. The innermost layer (2), which gets into contact the liquid to be conveyed, is made of plastic tolerating high temperatures. The outer layer (3) is formed of such materials that the outer surface is arranged to function as the provider of oxygen diffusion protection and/or the UV protector.

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