Double-walled pipeline system

Details Double-walled pipeline system Double-walled pipeline system

1988-11-14

1990-05-15

Arola, Dave W.

Pipe joints or couplings

With indicator, alarm or inspection means

285138, 285156, 285373, 285906, 285915, F16L 3500

Patent

active

049252186

ABSTRACT:
A double-walled pipeline system for flow media with an inner pipeline conduit including fittings, such as, T-pieces, angles, or bends, and instruments, such as, valves, stopcocks, etc., and with an outer pipeline conduit arranged concentrically to the inner pipeline conduit. The outer pipeline conduit includes two-part fittings and instrument casings, so that continuously connected outer annular space is formed in the pipeline system.

REFERENCES:
patent: 3954288 (1976-05-01), Smith
patent: 4488739 (1984-12-01), deLange
patent: 4667505 (1987-05-01), Sharp
patent: 4786088 (1988-11-01), Ziu

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