Patent ID: 7413372

Claim:
A trench drain apparatus comprising: a trench frame member adapted for mounting to an underlying drainage pipe and having generally upright parallel one-piece side frame members connected at their respective ends by end plate members and defining the top and the bottom of the trench frame member, each side frame member having a base wall member and support wall, the base wall members disposed between the to and the bottom of the trench frame member and extending generally transverse to the respective side frame members, portions of the base wall members adapted to be embedded in a support material formed about the trench drain apparatus and the drainage pipe to thereby support the trench frame member within the support material above the drainage pipe, the support walls extending downward from the base wall members to define side frame members having stepped cross-sectional profiles, the support walls having free ends that define the bottom of the trench frame member, the free ends of the support walls spaced apart and adapted to engage a portion of the drainage pipe; and a grate member seatably engaged in the trench frame member between the side frame members.