ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,209, issued on May 19, was assigned to Lindhaus S.R.L. (Padua, Italy).
"Adjustable and lockable joint for floor cleaning machines" was invented by Michele Massaro (Noventa Padovana, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A joint for floor cleaning machines, comprising: a first portion, a second portion which is articulated to the first portion, a third portion which is articulated to the second portion; the joint comprises: first stable inclination element for the stable inclination of the second portion with respect to the first portion, second stable inclination element for the stable inclination of the third portion with respect to t...