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:
Jun. 03, 2025
Filed:
Dec. 05, 2024
Shenzhen Yamind Medical Technology Co., Ltd., Guangdong, CN;
SHENZHEN YAMIND MEDICAL TECHNOLOGY CO., LTD., Guangdong, CN;
Abstract
A noise reduction gas path structure includes a gas path chamber; an acoustically transparent and anti-aeration element in the gas path chamber, the acoustically transparent and anti-aeration element is configured to divide the gas path chamber into a gas flow portion and a sound-absorbing portion; and a sound-absorbing filler in the sound-absorbing portion, the sound-absorbing filler is configured to absorb sound entering the sound-absorbing portion from the gas flow portion through the acoustically transparent and anti-aeration element. A gas path device includes the above noise reduction gas path structure. And a respirator includes the gas path device.