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:
Jul. 16, 2024
Filed:
Feb. 19, 2021
Johnson Controls, Inc., Milwaukee, WI (US);
Jean H. Scholten, Roswell, GA (US);
Aurimas Aniulis, Atlanta, GA (US);
Damon Bryan Smith, Alto, GA (US);
Tyco Fire & Security GmbH, Neuhausen am Rheinfall, CH;
Abstract
An air duct includes a shell, a first annular chamber defined along a circumference of the sidewall and fluidly coupled with an inner volume defined by the shell through multiple first openings, a second annular chamber defined along the circumference of the shell at a longitudinal position downstream of the first annular chamber, and fluidly coupled with the inner volume of the shell through multiple second openings, a first pressure sensing coupler, a second pressure sensing coupler, a first field accessible coupler, and a second field accessible coupler. The first pressure sensing coupler is fluidly coupled with the first annular chamber and the second pressure sensing coupler is fluidly coupled with the second annular chamber for pressure detection. The first and second field accessible couplers are fluidly coupled with the first and second annular chambers for providing pressurized air to the first annular chamber and the second annular chamber.