Patent 9970545 was granted and assigned to Mide Technology Corporation on May, 2018 by the United States Patent and Trademark Office.
A seal system includes a face seal rotor ring including a wide sealing face preferably made of tungsten carbide. The stator ring includes a narrower sealing face confronting the rotor ring wide sealing face. The stator ring sealing face is preferably made of polyamide-imide and tapers to narrower widths rearwardly.