ALEXANDRIA, Va., June 9 -- United States Patent no. 12,288,643, issued on April 29, was assigned to Wipotec GmbH (Kaiserslautern, Germany).
"Pot magnet for a plunger coil arrangement" was invented by Jan Gottfriedsen (Waldfischbach-Burgalben, Germany) and Bernd Zinke (Mandelbachtal, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pot magnet for a plunger coil arrangement includes a housing defining an interior with a housing bottom surface and a circumferential surface extending perpendicularly to the housing bottom A permanent magnet unit is arranged in the interior of the housing and includes a permanent magnet and a pole plate. An annular gap for accommodating a plunger coil of a plunger coil arr...