Process for shaping a reinforcement on the extremities of the internal casing of an elastic joint, after molding, and its applications
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United States of America Patent
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-
Apr 12, 1994
Grant Date -
N/A
app pub date -
Jul 20, 1992
filing date -
Jul 23, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for the manufacture of an elastic joint, which includes positioning an external casing member, an internal casing member and an elastomeric compound such that the external casing member surrounds the internal casing member, and such that the elastomeric compound is situated between the exterior surface of the internal casing member and the interior surface of the external casing member, and radially expanding an end portion of the internal casing member to thereby form an annular reinforcement on the end portion of the internal casing member, the step of radially expanding the end portion of the internal casing member being carried out by contacting a die member a plurality of times with the end portion of the internal casing member, the step of contacting the die member a plurality of times with the end portion of the internal casing member being carried out such that the force applied by the die member against the end portion of the internal casing member is exerted along different axes relative to the end portion of the internal casing member at different times.
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