US Patent Issued to Sonny's HFI Holdings on March 4 for "Pneumatic excavator and methods of use" (Minnesota Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,223, issued on March 4, was assigned to Sonny's HFI Holdings LLC (Wilmington, Del.).

"Pneumatic excavator and methods of use" was invented by Timothy Meschke (Carver, Minn.), Ian Taylor (Inver Grove Heights, Minn.) and Nathan Schlueter (Bloomington, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pneumatic excavator for delivering pulsed compressed air includes an actuator; a controller valve; a flow valve; a barrel defining an outlet of the excavator; and a pulse control line extending between the controller valve and a port downstream from an egress of the flow valve. As compressed air flows through the egress of the flow valve, the pulse c...