US Patent Issued to Parker-Hannifin on Nov. 25 for "Refrigerant control valve with an enhanced flow modulating plug configuration" (Missouri, Indiana Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,600, issued on Nov. 25, was assigned to Parker-Hannifin Corp. (Cleveland).

"Refrigerant control valve with an enhanced flow modulating plug configuration" was invented by Michael W. Trumbower (Fort Wayne, Ind.) and Gordon R. Coates III (Augusta, Mo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An example refrigerant control valve includes: a modulating plug that is linearly movable to control refrigerant flow rate from a first port to a second port; a first chamber formed at a first side of the modulating plug and fluidly coupled to the first port; a second chamber formed at a second side of the modulating plug, opposite the first side; a first fl...