Patent 11608896 was granted and assigned to A.W. Chesterton on March, 2023 by the United States Patent and Trademark Office.
A sealing assembly that includes first, second and third sealing elements, where the first sealing element is disposed between the second and third sealing elements. The sealing elements are shaped in a complementary manner so that the sealing elements when assembled nest together. The sealing elements also have different hardness values associated therewith.