Patent ID: 6347453
Filing Date: 2002-02-19
Classification: B21C,B23P,F02G,F25B,F28D,Y10T

Abstract:
A method of installing concentric layers of foil of approximately uniform thickness in a generally cylindrical space, which said generally cylindrical space is either an inner surface of a previously-installed piece of foil or an initial cylindrical space, comprising the steps of:(1) cutting a piece of foil to a length such that a distance between axial edges of said piece of foil, after said piece of foil has been cut is approximately equal to a circumference of said inner surface of said generally cylindrical space, (2) loosely rolling said cut piece of foil with its said axial edges overlapping, (3) inserting said cut piece of foil, loosely rolled, into said generally cylindrical space, (4) pressing said cut piece of foil against said inner surface of said generally cylindrical space until its said axial edges no longer overlap, and (5) repeating steps (1) through (4).