US Patent 10018019 Multilateral junction with mechanical stiffeners

An example multi-bore junction assembly includes a connector body having an upper end and a lower end, the lower end providing a main bore leg receptacle and a lateral bore leg receptacle, a main bore leg coupled to the main bore leg receptacle and extending longitudinally therefrom, a lateral bore leg coupled to the lateral bore leg receptacle and extending longitudinally therefrom, wherein the main and lateral bore legs are round, tubular structures, and a first mechanical stiffener arranged on the main bore leg and a second mechanical stiffener arranged on the lateral bore leg, wherein the first and second mechanical stiffeners each exhibit a generally D-shaped cross-section.