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US 8,708,601 B2Granted
Box culvert
AssigneeJensen Enterprises, Inc.
InventorThomas Elliott
Life of this patent
Estimating the term…
Abstract
A box culvert assembly and method of forming a box culvert assembly is provided. The boxes forming the assembly comprise portions configured to allow pivoted assembly of one box into another, while reducing the likelihood of high stress or fracture. The box assembly further allows for a generally tight seal between the boxes.
Claims9
A box culvert assembly comprising:
- first and second four-sided concrete boxes coupled to one another, the first and second boxes having first ends, second ends, and openings extending between the first and second ends;
- the first box comprising an upper protruding ledge, the protruding ledge having a distal most end comprising a first portion, a second portion, and a third portion in between the first and second portions, the first and second portions having a greater thickness than the third portion, the first and second portions of the distal most end of the protruding ledge being configured to support at least a portion of the weight of the first box when the first box is coupled to the second box, said first portion located at a first corner of the first box and said second portion located at a second corner of the first box;
- and
- the second box comprising a recessed ledge having a first receiving surface located adjacent to a top edge and a first side of the box and a second receiving surface located adjacent to the top edge and a second side of the box for contacting and supporting the first and second portions of the distal most end of the protruding ledge.
1 more element
Dependencies are inferred from the claim text.