ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,966, issued on Jan. 13.

"Drum for a washing machine, comprising at least one parallelepiped-shaped compartment, and washing machine comprising same" was invented by Denis Barreau (Mezieres-sur-Sein, France) and Kevin Wolak (La Selle-Saint-Cloud, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A drum for a washing machine for washing and/or spin drying mattresses, the drum being able to rotate about a substantially horizontal axis and comprising at least one parallelepiped-shaped compartment. The at least one parallelepipedal compartment is configured to contain one or more mattresses therein, wherein the one or more mattresses having length an...