ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,538,708, issued on Jan. 27, was assigned to Suncourt Inc. (Durant, Iowa).
"Adjustable piezoelectric vibration sensor" was invented by David James Forman (Coralville, Iowa).
According to the abstract* released by the U.S. Patent & Trademark Office: "A standalone vibration detector switch which is free of any accelerometers, strain gauges, spring-vibration switches, or eddy-current sensors, but instead utilizes a piezoelectric transducer disk to sense vibration of the object to which the device makes physical contact. The device does not rely on the harvesting of autarkic energy generated by large changes in the piezo transducer's motion or deflection, but rather measures the instantan...