Portable flexible sealing device for grated openings
AssigneeILC Dover, Inc.
InventorsDavid Phillip Cadogan, Daniel James Gleeson, Jonathan Michael Hinkle, Jeffrey Lewis Roushey
Life of this patent
Estimating the term…
Abstract
A lightweight watertight cover that is easily installed and positively secured in place, which provides a reliable seal to prevent flood water from entering openings such as subway ventilation shaft gratings and other porous openings that serve as entry point for flood water.
Claims20
A portable flexible cover device with a perimeter seal that is sized and shaped to attach to a grating of a grated opening and seal the grated opening from entry of water and other contaminants into at least one selected from the group consisting of buildings, underground architecture and systems;
- additionally comprising anchors to attach the portable flexible cover device to the grating.
(canceled)
A portable flexible cover device with a perimeter seal that is sized and shaped to attach to a rigid plate over an opening and seal the opening from entry of water and other contaminants into at least one selected from the group consisting of buildings, underground architecture and systems.
Dependencies are inferred from the claim text.