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:
Oct. 21, 2025
Filed:
Nov. 21, 2022
Trane International Inc., Davidson, NC (US);
Richard L. Jameson, Tyler, TX (US);
Trane International Inc., Davidson, NC (US);
Abstract
Example embodiments of the present disclosure relate to improved sound attenuation configurations and methods of manufacturing the same. An example embodiment includes a low noise climate control device. This device may include a housing and a noise producing component within the housing. Further, the device may include an acoustic metamaterial stack arranged in the housing. The acoustic metamaterial stack may include a perforated layer arranged over a spacer layer, and the spacer layer arranged over another perforated layer. Each of the perforated layers may include a plurality of perforations creating a percentage of open area (POA). The perforated layers may further include set(s) of sheets that each including a plurality of openings. These set(s) of sheets may be arranged such that the plurality of openings in the sheets for each perforated layer are coordinate to create the plurality of perforations in each of the perforated layers.