US Patent Issued to Nature Tech on July 14 for "Spray booth and system for manufacture of cellulose insulation" (Wisconsin Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,200, issued on July 14, was assigned to Nature Tech LLC (Milwaukee).

"Spray booth and system for manufacture of cellulose insulation" was invented by William Sellars (Milwaukee) and Thomas C. Shutt (Milwaukee).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spray booth for producing cellulose insulation and a system for producing cellulose insulation uses the spray booth. Input cellulose material is fiberized and cellulose dust is removed from the fiberized cellulose material. The fiberized cellulose material is directed to a spray booth where cellulose fibers and matrices of cellulose fibers are sprayed with a liquid fire-retardant chemical to prod...