Tube forming apparatus and method
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United States of America Patent
Stats
-
Aug 4, 1981
Grant Date -
N/A
app pub date -
Aug 27, 1979
filing date -
Sep 13, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for forming a tube, preferably of flexible thermally insulating material, comprises a cutting head 14 with a pair of concentric cutting edge 16, 18 which cooperates with a presser head 28 to cut rings 50 of material from a sheet 48 presented to the cutting head. The rings are stacked up on a guide bar 32 and sprayed with a coating composition to consolidate them into a tube which may be collected on a take-up drum in a continuous manner.
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