ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,937, issued on May 13, was assigned to MCWANE INC. (Birmingham, Ala.).
"Mechanical joint retainer gland" was invented by Paul Kennedy (Horseheads, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A retainer gland to secure the connection and seal of a pipe joint includes an outer securement ring and an inner gripper ring. The outer securement ring has a periphery and a plurality of fastener flanges in spaced relation about the periphery, each of the fastener flanges having a mounting hole therethrough. The inner gripper ring is configured to be disposed within the outer securement ring. The inner gripper ring has a base and a plurality of gripper...