US Patent 11774022 Pipe fitting with grip ring

A pipe fitting includes a fitting body defining an inner surface, an outer surface, a first fitting end, and a second fitting end, the inner surface defining a channel extending from the first fitting end to the second fitting end, a portion of the inner surface defining a tapered region tapering towards the first fitting end; and an engagement assembly comprising a metal grip ring received in the channel, the metal grip ring defining a substantially frustoconical ring body, the ring body defining a diameter that tapers from a first lateral end of the ring body to a second lateral end of the ring body, the engagement assembly configured to slide along the tapered region.