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:
Nov. 19, 2019
Filed:
Aug. 10, 2017
Applicant:
Lennox Industries Inc., Richardson, TX (US);
Inventor:
Glenn W. Kowald, Carrollton, TX (US);
Assignee:
Lennox Industries Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); F23D 14/68 (2006.01); B01D 39/12 (2006.01); F24H 9/20 (2006.01); B01D 46/10 (2006.01);
U.S. Cl.
CPC ...
F23D 14/68 (2013.01); B01D 39/12 (2013.01); B01D 46/0005 (2013.01); F24H 9/2085 (2013.01); B01D 46/103 (2013.01); B01D 2275/10 (2013.01);
Abstract
Systems and methods are described for a screen assembly for gas-air mixers in HVAC systems, such as for furnaces. A screen assembly can comprise a mesh screen, a housing, and a pressure tap. The mesh screen can allow for the intake of an air supply while also blocking unwanted foreign matter such as dust or leaves. The housing can receive the air supply and direct it into a gas-air mixer or other component. The pressure tap can be coupled to a gas valve or regulator in order to modulate the flow of gas when air flow is restricted.