ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,003, issued on Dec. 2.
"Integrated energy recovery base or roof-curb for air-conditioning unit" was invented by Stephen G Ehrman (Indianapolis).
According to the abstract* released by the U.S. Patent & Trademark Office: "An energy recovery system used with HVAC and Air-Conditioning units that is incorporated into a roof-curb, final filter curb assembly or base support structure (roof-curb air plenum) commonly used with mass produced standard or semi-custom manufactured air conditioning systems. The arrangement includes core or wheel type energy recovery media arranged and affixed within the curb or support base in an orientation and method to maximize the amount of energy recovery...