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:
Aug. 08, 2006
Filed:
Jul. 20, 2004
Heng-yi Lai, Manlius, NY (US);
Sivakumar Gopalnarayanan, Simsbury, CT (US);
Paul M. Haydock, Zionsville, IN (US);
Heng-Yi Lai, Manlius, NY (US);
Sivakumar Gopalnarayanan, Simsbury, CT (US);
Paul M. Haydock, Zionsville, IN (US);
Carrier Corporation, Farmington, CT (US);
Abstract
In a residential furnace having a layered insulation material on the inner walls of the heat exchanger compartment, the inner aluminum foil layer has a plurality of holes formed therein in order to allow for the outer layer to absorb the sound within the heat exchanger compartment and thereby reduce the noise emanating from the furnace. Both the density and size of the holes are optimized to maximize the sound absorption performance over the particular frequency ranges that are characteristic of the furnace.