Flow restrictor for installation in an underground conduit connected to an underground vault
AssigneeNovinium, Inc.
InventorsGlen John Bertini, David C. Busby
Life of this patent
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Abstract
A flow restrictor for installation in a connection having a terminus opening into an underground vault. The flow restrictor includes an annular restriction device and a concentration member. The annular restriction device is configured to be installed in the annulus near the terminus opening and to restrict a flow of one or more gases through the annulus of the connection. The concentration member is configured to concentrate the flow and includes a through-channel configured to allow the concentrated flow to flow between the underground vault and the annulus.
Claims31
A flow restrictor for installation in a connection comprising a wall and a terminus opening into an underground vault, the wall defining an annulus, one or more cables extending through the annulus and outwardly therefrom beyond the terminus, a flow comprising one or more gases flowing through the annulus alongside the one or more cables, the flow restrictor comprising:
- an annular restriction device configured to be installed in the annulus alongside the one or more cables and near the terminus of the connection, the annular restriction device being configured to restrict the flow through the annulus of the connection;
- and
- a tube configured to concentrate the flow, the tube comprising a through-channel configured to allow the concentrated flow to flow between the underground vault and the annulus, the through-channel being configured to allow liquid to drain freely from the annulus of the connection through the through-channel.
A flow restrictor for installation in a connection comprising a wall and a terminus opening into an underground vault, the wall defining an annulus, one or more cables extending through the annulus and outwardly therefrom beyond the terminus, a flow comprising one or more gases flowing through the annulus alongside the one or more cables, the flow restrictor comprising:
- an annular restriction device configured to be installed in the annulus alongside the one or more cables and near the terminus of the connection, the annular restriction device being configured to restrict the flow through the annulus of the connection;
- and
- a tube configured to concentrate the flow, the tube comprising a conically shaped screen and a through-channel, the through-channel being configured to allow the concentrated flow to flow between the underground vault and the annulus.
Dependencies are inferred from the claim text.