A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A device for sealing the opening of a manhole. The device includes a seal coupled to a lid; a valve; and a compression inducing device. The lid is set within an existing manhole frame and operates without modification. The seal is coupled to a lower surface of the lid and contacts a lip within the frame. The seal is compressed to the lip and the compression inducing device is used to grip the frame below the lip to maintain the compressive state of the seal. The manhole cover is placed on top of the lid. Gases escape through the valve. Water or moisture is prevented from passing through the seal or valve. One or more grooves or ribs are optionally included to create a gap between the lid and the manhole cover for the routing of released gases.
A device for sealing the opening of a manhole. The device includes a seal coupled to a lid; a valve; and a compression inducing device. The lid is set within an existing manhole frame and operates without modification. The seal is coupled to a lower surface of the lid and contacts a lip within the frame. The seal is compressed to the lip and the compression inducing device is used to grip the frame below the lip to maintain the compressive state of the seal. The manhole cover is placed on top of the lid. Gases escape through the valve. Water or moisture is prevented from passing through the seal or valve. One or more grooves or ribs are optionally included to create a gap between the lid and the manhole cover for the routing of released gases.
Manhole cover sealing device
KNOWLES ROGER W (author)
2017-07-04
Patent
Electronic Resource
English
IPC:
E02D
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