| 摘要 |
<p>INJECTION MOLDED PLASTIC CONTAINER An injection molded plastic container having a longitudinal axis comprising a bottom, a rim defining an opening, a continuous side wall joining the bottom and the rim and disposed symmetrically about said axis, a point of injection centrally located in the bottom, a molding terminus defined by said rim and a plurality of pairs of ribs integral with and superimposed on the exterior surface of said side wall, said ribs being solid in transverse cross-section and forming a symmetrical pattern on said surface wherein each rib is curved and forms an acute angle throughout its length to the shortest surface distance between the point of injection and the rim, half of the ribs are curved as a mirror image of the other half of the ribs, each pair of ribs is a mirror image pair which join at said rim and are disposed in spaced relationship at said bottom, said pairs being spaced about said axis with each rib of each pair crossing once only the next adjacent rib of the next adjacent pair and no other rib.</p> |
