Packing with sealing chambers

摘要

A sealing packing comprises an annular body, plural sealing projecting stripes formed in an upper surface of the annular body, and a plurality of ribs properly spaced between the sealing projecting stripes and extending from one edge of both inner and outer surrounding edges of the upper surface to the other edge to connect to each of the sealing projecting stripes. Plural small sealing chambers are formed in the upper surface by the sealing projecting stripes and the ribs.