Mold for producing O-rings from elastomers has upper and lower section with annular grooves which form mold for ring when sections are assembled, dividing line between sections being offset from center of molding channel

摘要

The mold for producing O-rings from elastomers has an upper (1) and a lower (1') section with annular grooves (12, 12') which form a mold for the ring when the sections are assembled. The dividing line between the sections is offset from the center of the molding channel. Independent claims are included for: (A) O-rings with lips produced by the mold dividing line which are at an angle to the horizontal plane passing through the ring; and (B) use of the rings in pipe connections using press-fittings, the lips not being positioned in the area of contact of the ring with fitting and pipe.