ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,995, issued on June 23, was assigned to BURCKHARDT COMPRESSION AG (Winterthur, Switzerland).

"Piston compressor and method of operating the same" was invented by Alexandre Voser (Elsau, Switzerland), Reiner Schulz (Lottstetten, Germany) and Sandro Brunner (Winterthur, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating a piston compressor the compressor having a cylinder as well as a piston arranged therein, a carrier housing with a crosshead mounted in the carrier housing, a spacer which connects the cylinder to the carrier housing, as well as a piston rod extending in a longitudinal direction (L) which connects the cro...