Patent ID: 9540972
Date: 2017-01-10
CPC Classifications: F01M,F02F,Y10T

Claim:
1. An impact resistant article comprising: an exterior surface having an impact portion disposed between a leading portion and a trailing portion, wherein said leading portion includes a wall and wherein said impact portion comprises a pair of end portions, wherein said pair of end portions defines a plane extending tangentially to each of said end portions and not intersecting said impact portion between said pair of end portions; a plurality of ribs extending outwardly from said exterior surface; said plurality of ribs including a top surface and a pair of side surfaces in spaced and parallel relationship and perpendicular to said exterior surface; a fillet interconnecting said exterior surface and each of said pair of side surfaces; wherein said impact portion of said exterior surface defines an arcuate configuration between said pair of end portions protruding outwardly for imparting impact resistance to said impact portion, and wherein said arcuate configuration has an apex spaced from said wall and wherein said apex is also spaced from said plane, and wherein said plane intersects said wall at an angle of from about 100 to about 150 degrees.