THOMAS J POERIO
Engineers in Pittsburgh, PA
License number
Pennsylvania PE053072E
Category
Engineers
Type
Professional Engineer
Address
Address
Pittsburgh, PA 15237
Professional information
Building Drainage System Pipes With Improved Performance At Low Flow
US Patent:
2013031, Nov 28, 2013
Filed:
Mar 15, 2013
Appl. No.:
13/839265
Inventors:
Thomas J. Poerio - Pittsburgh PA, US
International Classification:
E03F 3/04
US Classification:
405 36
Abstract:
Building drainage system pipes with improved performance at low flow are disclosed. The pipes have two or more conjoined portions. At low flow, only the smaller portion contains sewage, and it provides a higher velocity than the state of the art by providing a greater hydraulic radius. The larger portion, on the other hand, is large enough to provide sufficient capacity at peak flow while maintaining sufficient velocity. The bi-diameter pipes may be used to replace or retrofit round circular pipes in order to maximize the velocity at low flow while maintaining capacity at peak flow.