发明名称 GASKET FOR USE IN MANHOLE BASES AND THE LIKE
摘要 A gasket formed of an extruded elastomeric material which is joined at its ends to form a closed loop. The gasket has a cross-section defined by a T-shaped anchoring flange integrally joined to a substantially pear-shaped portion which tapers in the radially inward direction. An integral flange extends diagonally away from the radial direction and serves to significantly enhance the water-tight seal provided by the resilient gasket, as well as significantly increasing the range of pipe diameters capable of being accommodated by the gasket. Disc-shaped or cylindrical-shaped inserts insertable into cavities at angular intervals about the wall of the opening engage the gasket to center the pipe and to aid in reducing shearing forces.
申请公布号 CA1336915(C) 申请公布日期 1995.09.05
申请号 CA19870551067 申请日期 1987.11.04
申请人 A-LOK PRODUCTS, INC. 发明人 DITCHER, JACK
分类号 F16J15/02;F16L41/08 主分类号 F16J15/02
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