ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,437, issued on April 22, was assigned to AB Sandvik Coromant (Sandviken, Sweden).
"Clamping device for tool holder" was invented by Gunnar Matlik (Sandviken, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A clamping device for releasably holding a tool holder shank includes a spindle rotatably mounted inside a housing. A drawbar is axially moveable in a bore in the housing between an advanced releasing position and a retracted locking position. A plurality of engagement members are moveable under the effect of the drawbar into locking engagement with the tool holder shank. An actuating sleeve is arranged around a peripheral wall of the spindle...