F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/5, 117/69
F16L 9/14 (2006.01) F16L 57/00 (2006.01) F16L 57/06 (2006.01)
Patent
CA 1064779
ABSTRACT OF THE DISCLOSURE An energy-absorbing protective coating is bonded to the exterior of a plastic pipe. Preferably, the coating is a layer of low-cost, crushable, multicellular, inorganic particles, such as natural volcanic lightweight aggregate, expanded shale, expanded clay, pumice, slag, or furnace cinder, embedded in a thin film of plastic resin. the particles crush by breaking upon impact, which absorbs the energy of the impact and protects the pipe from damage.
235198
Magarian Gerald M.
Thompson Robert A.
LandOfFree
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