Airtight trench drain system
First Claim
1. A drainage and ground vapor mitigation system adapted for ground vapor isolation of and liquid drainage from a subterranean chamber or basement having a floor and an internal environment, the system comprising:
- a drainage channel, at least in part inside the subterranean chamber or basement, comprising a drainage conduit extending longitudinally along the floor;
the drainage conduit having a drainage portion and a venting portion disposed therein so that a conduit wall is common to both the drainage portion and the venting portion and extending longitudinally along the floor in the drainage conduit, the venting portion and drainage portion interfacing each other and being configured so that the interface therebetween is capable of maintaining a pressure difference across the interface between the internal environment and an external environment;
a valve located between the drainage portion and the venting portion; and
a discharge drain connected to the drainage channel so that liquid drains out of the drainage channel;
wherein drainage liquid from the basement flows into the drainage portion and from the drainage portion through the valve into the venting portion to the discharge drain.
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Accused Products
Abstract
A system adapted to remove radon gas and drainage liquid from a subterranean chamber or basement having a floor and an ambient environment. The system has a drainage channel forming a drainage portion and a venting portion. A valve is located between the drainage portion and the venting portion. Drainage liquid flows into the drainage portion and from the drainage portion through the valve into the venting portion. A pressure gradient is between the drainage portion and the venting portion. The valve substantially prevents the ambient environment from entering the venting portion while allowing drainage liquid to flow from the drainage portion into the venting portion.
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Citations
25 Claims
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1. A drainage and ground vapor mitigation system adapted for ground vapor isolation of and liquid drainage from a subterranean chamber or basement having a floor and an internal environment, the system comprising:
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a drainage channel, at least in part inside the subterranean chamber or basement, comprising a drainage conduit extending longitudinally along the floor; the drainage conduit having a drainage portion and a venting portion disposed therein so that a conduit wall is common to both the drainage portion and the venting portion and extending longitudinally along the floor in the drainage conduit, the venting portion and drainage portion interfacing each other and being configured so that the interface therebetween is capable of maintaining a pressure difference across the interface between the internal environment and an external environment; a valve located between the drainage portion and the venting portion; and a discharge drain connected to the drainage channel so that liquid drains out of the drainage channel; wherein drainage liquid from the basement flows into the drainage portion and from the drainage portion through the valve into the venting portion to the discharge drain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A drainage system with ground vapor mitigation adapted for ground vapor isolation of and liquid drainage from a subterranean chamber or basement having a floor and an internal environment, the system comprising:
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a drainage channel, at least in partly inside the subterranean chamber or basement, comprising a drainage conduit extending longitudinally along the floor; an isolation wall mounted inside the drainage conduit, dividing the conduit lengthwise and forming a drainage portion and a venting portion inside the conduit, both of which extend longitudinally along the floor, so that a conduit wall is common to both the drainage portion and the venting portion; a check valve located in the isolation wall between the drainage portion and the venting portion; wherein drainage liquid from the basement flows into the drainage portion and from the drainage portion through the check valve into the venting portion. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A drainage channel adapted for ground vapor isolation of and liquid drainage from a subterranean chamber or basement having a floor and an internal environment, the drainage channel comprising:
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a channel portion; the channel portion forming a drainage portion and a venting portion therein so that a channel wall is common to both the drainage portion and the venting portion; and a check valve located within the channel portion between the drainage portion and the venting portion; wherein drainage liquid flows into the drainage portion and from the drainage portion through the check valve into the venting portion and wherein the check valve substantially prevents entry of ground vapor into the internal environment through the drainage channel while allowing drainage liquid to flow from the drainage portion into the venting portion.
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Specification