B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
226/64.3
B65B 3/04 (2006.01) B65B 39/00 (2006.01)
Patent
CA 1305955
ABSTRACT The invention relates to a product filling pipe to n packing machine for liquid contents such as milk. The filling pipe consists of two concentric pipes of metal which between them form a vacuum chamber . The double-walled filling pipe is manufactured by the welding together in a vacuum chamber of two concentrically arranged pipes and along the annular weld joints and . When n product which is considerably cooler than the surrounding atmosphere is supplied through the inner pipe the outer pipe will not be cooled down to an appreciable extent, since the evacuated space in between constitutes a good thermal insulator.
610219
Ab Profor
Marks & Clerk
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