Flexible stuffing box packing assembly
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United States of America Patent
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Jan 12, 2016
Grant Date -
Jun 11, 2015
app pub date -
Dec 8, 2013
filing date -
Dec 8, 2013
priority date (Note) -
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Abstract
A flexible stuffing box packing assembly has fifth rings which are placed within a stuffing box. The pressures are transferred along the sequence of the first, second, third, fourth and fifth rings. The gaps between the first and second rings and between the fourth and fifth rings provide a space for expansion of the rings. The V shape recesses in various rings provide margins for the materials of the rings to expansion. Therefore, the structure provides that all rings can expand effectively without destroying the seal structure and the stresses from various rings will disperse effectively so that lifetime of the rings are prolong.
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