US Patent Issued to MITIS on Nov. 4 for "High-speed spindle with forced mechanical vibratory assistance" (French Inventor)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,042, issued on Nov. 4, was assigned to MITIS (Bouguenais, France).

"High-speed spindle with forced mechanical vibratory assistance" was invented by Sylvain Laporte (Orvault, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spindle for a machine tool, including a housing, a shaft for driving a cutting tool, rotatably mounted inside the housing with a possibility of axial movement relative to the housing, a single ball, axially interposed between a bearing ring fixed relative to the housing and a bearing ring movable with the shaft, one of these rolling rings defining an inclined bearing surface that is not perpendicular to the axis of rotation ...