Tubular mold
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United States of America Patent
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-
Sep 3, 2002
Grant Date -
N/A
app pub date -
Dec 21, 1999
filing date -
Dec 21, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An outer peripheral groove is provided at a distance from the top front end of the tube wall of a tubular mold. Into this peripheral groove grip, from opposing sides, U-shaped flanges having inner latching segments are inserted. The radial extension of the latching segments is smaller than the depth of the peripheral groove. Provided adjacently to the top front end is a circumferential recess, on which a reinforcement frame, which is able to be screw-coupled to the flanges and which braces against the flange of the water tank, and which can be located in position with an exact fit, while being sealed off. When the tubular mold is recalibrated, in particular using the explosive reforming method, the wall thickness is reduced, so that it is then necessary to rework the recess. One merely needs to put a new reinforcement frame in place and screw it tightly in place via the flanges.
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