Patent ID: 6189894
Filing Date: 2001-02-20
Classification: F16J

Abstract:
A packing member comprising:an annular body defining a central opening and an annular axis, said annular body having an upper sealing portion and a lower support portion;said annular body further defining a groove extending into said upper sealing portion, the groove having an outer outwardly inclined wall, an inner inwardly wall and a bottom wall;the upper sealing portion of the annular body including radially extending inner and outer sealing lips formed adjacent to at least a portion of the groove, the outer sealing lip extending axially beyond the inner sealing lip;the inner sealing lip further comprising a first lower inwardly inclined surface, a second lower inwardly inclined surface, said second lower inwardly inclined surface being inwardly inclined at an angle greater than the first inwardly inclined surface;said inner sealing lip further comprising a upper outwardly inclined surface, the upper outwardly inclined surface intersecting the second lower inwardly inclined surface, the intersection of the second lower inwardly inclined surface with the upper outwardly inclined surface forming an inner sealing edge, the inner sealing edge defining a first plane;said inner sealing lip further comprising an upper surface, the upper surface defining a second plane, said inner sealing lip being further defined by the inner wall of the groove;the outer sealing lip further comprising an outer lower outwardly inclined surface and an outer upper inwardly inclined surface, the outer upper inwardly inclined surface intersecting the outer lower outwardly inclined surface, the intersection of the outer upper inwardly inclined surface and outer lower outwardly inclined surface forming an outer sealing edge, the outer sealing edge defining a third plane; andthe outer upper inwardly inclined surface intersecting the outer wall of the grove, the intersection of the outer upper inwardly inclined surface with the outer wall of the grove forming an upper apex of said packing member, the upper apex defining a fourth plane.