US Patent Issued to Plum Creek Farm on July 22 for "Soft serve ice cream pump assembly" (Pennsylvania Inventor)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,238, issued on July 22, was assigned to Plum Creek Farm LLC (Bernville, Pa.).

"Soft serve ice cream pump assembly" was invented by Keith Zimmerman (Leesport, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pump assembly includes a diaphragm pump having a diaphragm extending across a chamber to define a gas chamber on a first side of the diaphragm and a mixture receiving chamber on a second, opposite side of the diaphragm. A shaft extends through the diaphragm and moves therewith between a default position and an extended position. The mixture receiving chamber is configured to receive liquid mixture via a mixture inlet and pass mixture to a pre...