ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,813, issued on Dec. 23, was assigned to CARL FREUDENBERG KG (Weinheim, Germany).
"Rolling assembly" was invented by Marek Semrau (Bestensee, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rolling assembly, including at least one roll pair with two cooperating rolls and a safety device. The safety device includes a hydraulic accumulator and a measuring device. The hydraulic accumulator includes an accumulator with a first and second accumulator chamber. A hydraulic fluid is disposed within the first accumulator chamber. A compressible gas is disposed within the second accumulator chamber. The hydraulic accumulator includes a moveably arrang...