Passive underground flood protection
AssigneeNew York City Transit Authority
InventorStephen Petrillo
Life of this patent
Estimating the term…
Abstract
Some examples provide methods, systems, devices and/or apparatus related to reducing and/or restricting water from entering underground transportation system, and more Specifically, to reducing and/or restricting water from entering underground transportation systems via vents based on the weight of the water, while not restricting ventilation airflow when water is not present. Some example systems for restricting water flow in a surface vent may include a frame that receives water, a door pivotally coupled to the frame(where the door may pivot between a first position and a second position), and a reservoir pivotally coupled to the door. The reservoir may collect the received water and may cause the door to pivot between the first position and the second position based on weight of the collected water.
Claims20
A system for restricting water flow in a surface vent, the system comprising:
- a frame configured to receive water;
- a door pivotally coupled to the frame, the door configured to pivot between a first position allowing the received water to exit the frame without restriction and a second position restricting substantially all of the received water from exiting the frame;
- a reservoir pivotally coupled to the door, the reservoir configured to collect at least a portion of the received water and further configured to cause the door to pivot between the first position and the second position based on a weight of the collected water.
A system for restricting water flow in a surface vent, the system comprising:
- a frame having a water ingress end and a water egress end, the frame configured to receive water from a surface via the water ingress end;
- a door coupled to an interior portion of the frame, the door configured to transition between an open orientation and a closed orientation;
- and
- one or more reservoirs coupled to the door, each reservoir configured to collect at least a portion of the received water and further configured to cause the door to transition between the open orientation and the closed orientation based on a weight of the collected water in the one or more reservoirs;
- wherein the open orientation allows the received water to exit the water egress end, allows air from below the frame to exit to a surface via the water ingress end, and allows air from above the surface to enter the water ingress end;
- and
- wherein the closed orientation prevents substantially all of the received water from exiting the water egress end, at least partially restricts the air from below the frame from exiting to the surface via the water ingress end, and at least partially restricts the air from above the surface from exiting the frame via the water egress end.
A system for restricting water flow into a subway vent, the system comprising:
- a grating disposed in a paved transportation surface;
- a frame disposed beneath the paved transportation surface, the frame configured to receive water from the paved transportation surface through the grating;
- and
- a closure door coupled to an interior portion of the frame, the closure door configured to allow water to exit the frame while the closure door has a first center of gravity, and further configured to prevent the water from exiting the frame while the closure door has a second center of gravity;
- a frame weep hole in the frame, the frame weep hole configured to allow at least a portion of the received water to exit the frame at a first flow rate;
- and
- wherein the closure door transitions between the first center of gravity and the second center of gravity based on the weight of the water.
Dependencies are inferred from the claim text.