Patent ID: 8196744

Claim:
A packaging unit ( 1 ) comprising: at least three pipe sections ( 2 ) of mineral wool, the pipe sections being elastic and having a relaxed uncompressed state and a compressed state, each pipe section having a pipe cavity, all of the pipe sections arranged side-by-side in a single line, all of the pipe sections compressed in a single direction defined by the line, the pipe sections each having a middle portion; and packaging consisting of: a first cardboard box section ( 3 ) surrounding a first end of the pipe sections on five sides; a second cardboard box section ( 4 ) surrounding a second end of the pipe sections on five sides, the pipe sections being compressed by the first and second cardboard box sections with reduction of the pipe section cavities and with stored recovery forces for restoring the pipe sections to the uncompressed state, the first cardboard box section spaced from the second cardboard box section so that the middle portions of the pipe sections are uncovered from rigid structure, the first and second box sections and the pipe sections forming a quadratic structure; and a plastic film ( 5 ) around the pipe sections and the first and second cardboard box sections.