ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,825, issued on Sept. 23, was assigned to Parker-Hannifin Corp. (Cleveland).
"Fracking plug with a support ring" was invented by Paul A. Dudzinski (Meriden, Conn.) and Kenneth W. Cornett (Madison, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An example plug assembly includes: a cone; a seal mounted to the cone; an anchoring ring comprising a plurality of anchoring ring segments disposed in a circular array, wherein a respective receptacle is formed between each two adjacent anchoring ring segments of the plurality of anchoring ring segments; and a support ring that is interposed between the seal and the anchoring ring, wherein the support ri...