ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,433, issued on Dec. 2.
"Abrasive blasting noise reduction nozzle and shroud" was invented by Gary C. Haverda (San Antonio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shroud assembly fixed to an abrasive blasting nozzle provides acoustic dampening during operation of the blasting system to reduce damage to the hearing of the user. The shroud assembly additionally provides features that improve safety and reduce fatigue during use. A first embodiment includes an end closure made up of flat acoustic panels and an alternate embodiment includes an end opening having peripheral chevron shaped acoustic panel edges. The shroud assembly includes a mechan...