Invention Grant
- Patent Title: Flow restrictor for installation in an underground conduit connected to an underground vault
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Application No.: US16208120Application Date: 2018-12-03
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Publication No.: US10883348B2Publication Date: 2021-01-05
- Inventor: Glen John Bertini , David C. Busby
- Applicant: Novinium, Inc.
- Applicant Address: US WA Kent
- Assignee: Novinium, Inc.
- Current Assignee: Novinium, Inc.
- Current Assignee Address: US WA Kent
- Agency: Davis Wright Tremaine LLP
- Agent George C. Rondeau, Jr.; Heather M. Colburn
- Main IPC: E02D27/00
- IPC: E02D27/00 ; F24F11/00 ; F24F13/02 ; F24F1/0073 ; E21B43/12 ; E21B21/08 ; E21B34/08 ; E21B47/12
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.
Public/Granted literature
- US20200173263A1 FLOW RESTRICTOR FOR INSTALLATION IN AN UNDERGROUND CONDUIT CONNECTED TO AN UNDERGROUND VAULT Public/Granted day:2020-06-04
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