ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,779,733, issued on Nov. 3, was assigned to SCHWING GMBH (Herne, Germany).
"Truck-mounted concrete pump" was invented by Andreas Lehmann (Moers, Germany), Uwe Krischan (Herne, Germany), Karl-Heinz Schwedhelm (Castrop-Rauxel, Germany), Johannes Henikl (Dorsten, Germany), Roland Schink (Herne, Germany) and Reiner Vierkotten (Oberhausen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulically driven concrete pump system includes a distribution boom, a support system, and a concrete pump. A first hydraulic pump is configured to drive the concrete pump, and a combustion drive engine is configured to drive the first hydraulic pump. A second hydra...