US Patent Issued to Energie-Innovation on Aug. 11 for "Vacuum engine" (Swiss Inventor)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,068, issued on Aug. 11, was assigned to Energie-Innovation AG (Pfaffikon, Switzerland).

"Vacuum engine" was invented by Franz Berger (Zurich).

According to the abstract* released by the U.S. Patent & Trademark Office: "An arrangement includes a combustion-free reciprocating engine having a cylinder closed by a cylinder head and a negative pressure chamber.A piston is coupled to a crankshaft via a connecting rod. The connecting rod and the crankshaft are integrated in a crankcase of the reciprocating engine.The cylinder head has an inlet valve and an outlet valve. The vacuum chamber is connectable to a working chamber of the cylinder via the outlet valve, to generate a negative pr...