Tube forming apparatus and method

Details Tube forming apparatus and method Tube forming apparatus and method

1979-08-27

1981-08-04

Lawrence, Evan K.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

118 37, 156278, 156512, 156513, 156529, 427284, 427292, B32B 3104

Patent

active

042820537

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.

REFERENCES:
patent: 1029652 (1912-06-01), White
patent: 2769741 (1956-11-01), Schwartz
patent: 2980572 (1961-04-01), Bagdon et al.
patent: 2995172 (1961-08-01), Glatt
patent: 3149516 (1964-09-01), Caldwell et al.
patent: 4204380 (1980-05-01), Bergmann et al.
Stanley, Frank A., Punches and Dies, New York, McGraw-Hill Book Company, Inc., 1950, pp. 159-160.

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