LandOfFree - US Patents - Listing for Hydraulic and earth engineering,Drainage or irrigation,Porous or apertured pipe, flume, or tileway

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Layered foundation for play surface

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber endplate

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber having a diagonally ribbed top

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber having dosing pipe hanger

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber having high leaching area to weight ratio

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber having varying slotted wall thickness

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber with angled end

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber with drain holes in base flange

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber with perforated web sidewall

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber with strengthened dome end

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chamber with varying slot opening height

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chambers joined together with swivel connections

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching chambers joined together with swivel connections

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching field construction

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching or drainage gallery with increased surface area

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Leaching system