ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,733, issued on Jan. 27, was assigned to Techtronic Cordless GP (Anderson, S.C.).
"Collet" was invented by Jonathan Loftis (Pendleton, S.C.), Kwok Ting Mok (Hong Kong), Long Long Hu (Dongguan, China) and Jia Ming Liao (Dongguan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A chuck for use with a rotary power tool having an output spindle. The chuck includes a base and an inner sleeve threadedly coupled to the base. The inner sleeve has a central aperture. A collet is disposed within the central aperture of the inner sleeve and configured to be engaged by a portion of the inner sleeve to be tightened or untightened. The chuck further includes ...