US Patent Issued to Kidde Technologies on June 2 for "Aerosol concentration sensor calibration device" (North Carolina Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,814, issued on June 2, was assigned to Kidde Technologies Inc. (Wilson, N.C.).

"Aerosol concentration sensor calibration device" was invented by Eli Baldwin (Knightdale, N.C.), James Varnell (Black Creek, N.C.) and Saul Salas (Knightdale, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aerosol concentration sensor calibration device includes a mixing column, a sensor, and a collection vessel. The mixing column extends in a vertical orientation between an inlet at a bottom of the mixing column and an outlet at a top of the mixing column, the mixing column configured to receive a mixture of a powder and a compressed gas at the inlet. The sensor ...