ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,899, issued on Aug. 19, was assigned to MAKITA Corp. (Anjo, Japan).
"Power tool" was invented by Fumitoshi Numata (Anjo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A grinder includes a locking assembly to lock a spindle in a head housing and has outlets with a large opening area for high cooling efficiency. A grinder includes a main housing accommodating a motor and a fan, a spindle, a locking assembly that locks rotation of the spindle, and a head housing including a joint connected to a front of the main housing, and a compartment accommodating the spindle and the locking assembly. The compartment is laterally less wide than the joint. T...