ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,187, issued on April 21, was assigned to Busch Produktions GmbH (Maulburg, Germany).
"Sliding vane rotary pump" was invented by Stephan Carl (Lorrach, Germany), Sebastian Schwenzer (Lorrach-Haagen, Germany) and Ronald Sachs (Schopfheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a rotary vane pump (1) for conveying a fluid to be conveyed, with a housing (2), with a rotor receiving chamber (3) and a lubricant chamber (14). An eccentrically arranged rotor (4) is provided in a rotor receiving chamber (3) in such a way that at least one conveying chamber (11) is produced, the volume of which varies cyclically during...