Opinion ID: 786481
Heading Depth: 2
Heading Rank: 3

Heading: The Atlanta Pipe

Text: 22 Both parties agree that the Nyssen, Hall, and the allegedly infringing Atlanta pipe cross-sections are adequately represented by the figure shown below for the purposes of their dispute. Like Nyssen, Atlanta employs a metal insert in the rib that seals the 23 NOTE: OPINION CONTAINING TABLE OR OTHER DATA THAT IS NOT VIEWABLE 24 rib opening from the interior of the pipe. The rib size, spacing, and performance parameters (e.g., hydraulic efficiency and burial strength), according to Hall, are not materially different from the pipe described in the '317 patent. Hall maintains that the sole difference between the two pipes is Atlanta's inclusion of a metal insert in the rib opening as shown above. But unlike Nyssen's insert, Hall continues, Atlanta's insert provides no structural reinforcement beyond that already inherent in the pipe as a result of the ribbed construction. Hall accuses Atlanta of adding the metal insert solely to avoid infringement of the '317 patent.