Apparatus and method for manufacturing a socket end of a pipe part provided with a sealing ring
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United States of America Patent
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Mar 25, 2008
Grant Date -
Jul 22, 2004
app pub date -
Mar 4, 2002
filing date -
Mar 6, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for manufacturing a socket end (12) which is provided with a sealing ring (9). The apparatus comprises an outer mould (1) for forming the outer contour of the sealing ring (9) and for forming the outer side of the socket end (12), and a core for forming the inner side of the socket end (12) and the sealing ring (9). The core comprises a first core part (7a), a sleeve-like core part (7) which can be displaced on the first core part (7a), for forming a front for the sealing ring (9), a core part (8) which adjoins the first core part (7a) and can be contracted in the radial direction, for forming the inner contour of the sealing ring (9), and a second core part (6), which adjoins the contractable core part (8), for forming the inner side of the pipe part. The contractable core part (8) has a radially innermost position with an external diameter which is smaller than the internal diameter of the sleeve -like core part (7).
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