US Patent 11841103 Pipe assembly having an angled plate and fabrication methods

A pipe assembly is provided, the pipe assembly comprising a first pipe having a side opening on a side surface of the first pipe. A plate in the first pipe is arranged adjacent to the side opening and at an angle relative to a radial axis of the first pipe such that a first side of the plate may be lower than a second side. A vent hole may be proximal the side opening on the side surface of the first pipe.