Electric current feedthrough for walls of pressure chambers - comprises tubular outer conductor tightly enclosing insulated inner conductor for sealing at both sides of inter-chamber partition

摘要

One or more inner conductors (41) of, e.g. copper, are sealed into an insulating surround (43) covered by a metallic, e.g. copper, tube (44) which constitutes an outer conductor (45). The ensemble (30) is taken through a hole (35) in a partition (19) sepg. two pressure chambers and is sealed externally with two elastic O-rings (49) fitted tightly around the tube and embedded in an annular groove (47) in one face of the partition. ADVANTAGE - Reliable seal around conductor(s) can be assembled in short time with very slim but sufficiently rigid structure over considerable length.