ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,839, issued on July 14, was assigned to Renishaw PLC (Wotton-Under-Edge, Great Britain).
"Apparatus, disc, and method of manufacture" was invented by Finlay Jonathan Evans (Malmesbury, Great Britain) and Duncan Searle (Charfield, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus including an encoder scale disc and a mount, the encoder scale disc including radially and/or tangentially resilient features located radially outwards of a scale configured to interact with the mount so as to locate the scale disc on the mount. The encoder scale disc may include radially resilient features which may deviate radially from the disc. A ...