Multilayer composite high-elastic environmentally-friendly ball structure
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United States of America Patent
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Apr 24, 2018
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app pub date -
May 4, 2017
filing date -
Mar 17, 2017
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Abstract
The utility model discloses a multilayer composite high-elastic environmentally-friendly ball structure which comprises a base layer, a first coating layer, a second coating layer, a third coating layer and a fourth coating layer, wherein both the base layer and the first coating layer are formed by splicing a number of pieces into a hollow spherical structure, and a contact surface of two adjacent spliced pieces is a stepped surface in a “Z” shape or a concave-convex fitting surface in a “U” shape. The utility model have the advantages of simple manufacturing process, novel design, high stability, high reliability, high elasticity and long service life.
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