US Patent Issued to American Wave Machines on Jan. 27 for "Low frequency noise reduction methods and devices" (California Inventor)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,925, issued on Jan. 27, was assigned to American Wave Machines Inc. (Solana Beach, Calif.).

"Low frequency noise reduction methods and devices" was invented by Bruce McFarland (Solana Beach, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various improvements for mitigating low-frequency noise (LFN) in a wave making apparatuses are disclosed. These improvements use a variety of structures to mitigate LFN formation emanating from the rapid depressurization of the chambers during the release water into a pool. The improvements include a variable pressure relief/exhaust valve opening speeds, a pressure relief slit on the exhaust port, a secondary...