Patent ID: 11953053
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC B  F

Claim 14:
15. The beam of claim 12 wherein:
said first side plate has a first side plate section, said first side plate section having a hole pattern A;
said second side plate has a second side plate section, said second side plate section having a hole pattern B;
said third side plate has a third side plate section, said third side plate section having said hole pattern A;
said fourth side plate has a fourth side plate section, said fourth side plate section having said hole pattern B;
said hole pattern A has:
a plurality of hole pattern A side holes;
a plurality of hole pattern A outer corner holes; and
a plurality of hole pattern A inner corner holes;

said hole pattern B has:
a plurality of hole pattern B side holes;
a plurality of hole pattern B outer corner holes; and
a plurality of hole pattern B inner corner holes;

said plurality of hole pattern A side holes and said plurality of hole pattern A outer corner holes each have a slotted shape and longitudinal axis oriented in a first direction;
said plurality of hole pattern B side holes and said plurality of hole pattern B outer corner holes each have a slotted shape and longitudinal axis oriented in a second direction; and
said first direction is perpendicular to said second direction.