ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,187, issued on May 26, was assigned to Pinnacle Climate Technologies Inc. (Eden Prairie, Minn.).
"Portable heater with safety features" was invented by Chris Kwok (Sartell, Minn.), Jacob Frame (St. Joseph, Minn.) and Mark Daniels (St. Cloud, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel-fired heater can include a fuel tank; a housing assembly supported by the fuel tank, the housing assembly defining a chamber having an inlet and an air outlet; a fan located within the housing assembly; an air pump located within the housing assembly; an electric motor coupled to at least one of the fan and the air pump; a burner assembly located within ...