US Patent Issued on Dec. 23 for "Anti-snoring device based on expansion type silencer" (Chinese Inventor)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,304, issued on Dec. 23.

"Anti-snoring device based on expansion type silencer" was invented by Ruifeng Sun (HuaiNan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides an anti-snoring device based on an expansion type silencer, and proposes the technical solution from the respective of eliminating the "effect" in the causality of snoring. The anti-snoring device comprises an expansion chamber, a tube, and an active noise elimination module. The expansion chamber is connected to the active noise elimination module. The active noise elimination module further comprises a secondary sound source, a microphone, and a cont...