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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.:

US 10376999 B1

PDFFull Text
Date of Patent:
Aug. 13, 2019

Filed:

Dec. 05, 2016

Alternative-fuel gas orifice having principal-fuel gas orifice temperature profile and a heating, ventilation and air conditioning system incorporating the same

Applicant:

Lennox Industries Inc., Richardson, TX (US);

Inventors:

Hans J. Paller, Double Oak, TX (US);

Glenn W. Kowald, Carrollton, TX (US);

Assignee:

Lennox Industries Inc., Richardson, TX (US);

Attorney:

Winstead PC

Primary Examiner:

Jacob J Cigna

Int. Cl.
CPC ...
B23P 15/00 (2006.01); F23D 14/58 (2006.01); F23D 14/34 (2006.01); F24H 9/20 (2006.01); F24H 3/08 (2006.01); F24H 8/00 (2006.01); B29C 45/18 (2006.01); F25D 21/14 (2006.01); B29L 31/18 (2006.01);
U.S. Cl.
CPC ...
B23P 15/00 (2013.01); B29C 45/18 (2013.01); F23D 14/34 (2013.01); F23D 14/58 (2013.01); F24H 3/087 (2013.01); F24H 8/006 (2013.01); F24H 9/2035 (2013.01); F25D 21/14 (2013.01); B29L 2031/18 (2013.01); F23D 2900/14481 (2013.01); Y02B 30/106 (2013.01); Y10T 29/49 (2015.01); Y10T 29/4935 (2015.01); Y10T 29/49348 (2015.01); Y10T 29/49389 (2015.01); Y10T 29/49826 (2015.01); Y10T 137/4463 (2015.04);
Abstract

An alternative-fuel gas orifice, a gas furnace configured to employ the same and a method of designing a gas orifice. In one embodiment, the gas orifice includes: (1) a body having an aperture extending therethrough and including: (1a) a metering neck having a cross-sectional area such that a given flow rate of a gas is established when the gas is delivered to the gas orifice at a given alternative-fuel delivery pressure and (1b) a diffuser having a cross-sectional area larger than the cross-sectional area of the metering neck and a length such that the gas achieves a substantially laminar flow before exiting the diffuser.

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