Patent ID: 9745704
Date: 2017-08-29
CPC Classifications: B64F,E01C,E01F,Y02A

Claim:
1. A helicopter take-off and landing pad (helipad) comprising: a drain conduit embedded within a surface; a bed of crushed aggregate within a portion of the surface graded to be inclined toward the drain conduit; a plurality of pavers supported by the aggregate bed and defining a substantially level top surface to serve as a landing surface for a helicopter, the plurality of pavers being permeable to liquid on the top surface to communicate the liquid to the aggregate bed; a pump connected to the drain conduit to discharge liquid directed from the aggregate bed through the drain conduit; a water separator at the outlet of the pump to separate water from other liquid components of the liquid; and at least one collection tank fluidly connected to the water separator to receive the other liquid components discharged by the water separator.