Patent ID: 11937696
Assignee: INNO-SPORTS CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC A  B | IPC A  B

Claim 0:
1. A blow-molded unitary structure comprising:
a panel comprising a first panel wall and a second panel wall spaced apart from the first panel wall;
a plurality of first depressions monolithically formed with the panel, each recessing from the second panel wall toward an interior of the panel;
a plurality of first protrusions monolithically formed with the panel, each protruding from the second panel wall toward an exterior of the panel and elongated in a first direction; and
a plurality of second protrusions monolithically formed with the panel, each protruding from the second panel wall toward an exterior of the panel and elongated in a second direction;
wherein:
at least a subset of the plurality of first depressions is arranged into a plurality of depression rows in the first direction and a plurality of depression columns in the second direction across at least a portion of the panel;
first protrusions in at least a subset of the plurality of first protrusions are arranged alternatively with depression rows in at least a subset of the plurality of depression rows;
second protrusions in at least a subset of the plurality of second protrusions are arranged alternatively with depression columns in at least a subset of the plurality of depression columns;
the first protrusions in the subset of the plurality of first protrusions and the second protrusions in the subset of the plurality of second protrusions cross each other, thereby creating a panel wall opposite to the first panel wall with respect to the second panel wall to enhance a strength of the blow-molded unitary structure.