The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2021
Filed:
Dec. 03, 2018
Applicant:
Novinium, Inc., Kent, WA (US);
Inventors:
Glen John Bertini, Fox Island, WA (US);
David C. Busby, Midland, MI (US);
Assignee:
NOVINIUM, INC., Kent, WA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D 27/00 (2006.01); F24F 11/00 (2018.01); F24F 13/02 (2006.01); F24F 1/0073 (2019.01); E21B 43/12 (2006.01); E21B 21/08 (2006.01); E21B 34/08 (2006.01); E21B 47/12 (2012.01);
U.S. Cl.
CPC ...
E21B 43/12 (2013.01); E21B 21/08 (2013.01); E21B 34/08 (2013.01); E21B 47/12 (2013.01);
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.