ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,135, issued on June 30, was assigned to HYDAC FLUIDTECHNIK GMBH (Sulzbach/Saar, Germany).
"Pilot-control electromagnetic valve" was invented by Peter Bruck (Althornbach, Germany), Christian Groh (Gersheim, Germany), Frank Schulz (Blieskastel-Bierbach, Germany), Andre Jager (Sangerhausen, Germany), Lennard Gunther (Dresden, Germany) and Jan Frederik Lubbert (Dresden, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a valve, comprising a main plunger for controlling a main volume flow and comprising a pilot-control plunger for controlling a pilot-control volume flow. The main and pilot-control plungers are longitudinall...