Most homeowners understand the need for weatherstripping doors and windows to prevent heat transfer and lower energy bills.

The large northern fur seal, found in chilly northern waters, was hunted to near extinction during the 19th century. These animals were protected by law in 1911, and populations later rebounded to ...

A huge range of industrial pumps and compressors use piston rings of various types, clearance seals, packing and elastomer or plastic seals depending on the fluid, application and duty requirement.