ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,499, issued on Sept. 2, was assigned to Atlas Copco IAS GmbH (Bretten, Germany).

"Apparatus for conveying viscous material" was invented by Gerrit Enderle (Knittlingen, Germany), Thomas Hausner (Bretten, Germany) and Marco Knopf (Malschenberg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for conveying viscous material from a container having a base and an upwardly-extending shell includes: a follower plate movable towards and away from the base adjacent to the shell inner surface facing the interior and having an outlet and at least one deaeration and/or aeration opening; a deaerator for sucking air through the deaeration open...