ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,274, issued on Dec. 30, was assigned to Robert Bosch GmbH (Stuttgart, Germany).
"Controlled clearing of refrigerant orifice" was invented by Jacob Hanson (Owatonna, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of clearing an orifice of a fluid conduit for refrigerant within an air conditioning service device. The method comprises establishing a pressure gradient between a branch of fluid conduit comprising the orifice and the external atmosphere and utilizing the pressure gradient to flush air through the orifice. The flow of air between the orifice and the fluid conduit is controlled to minimize introduction of unwanted air to the ...