ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,783, issued on Nov. 4, was assigned to TK Home Solutions B.V. (Krimpen aan den IJssel, Netherlands).
"Method to determine a speed profile for a stairlift" was invented by Cornelis Boxum (Delfgauw, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments described herein are directed to a method to determine a speed profile for a stairlift, wherein the stairlift includes a guide device, a carriage, and user interaction device. The carriage is rotatable around a vertical axle by a first drive. A specific mass moment of inertia for a specific person is determined by measuring a correlation between applied torque and resulting rotational ac...