U.S. Patent Classification Definitions: Class 279, Chucks or Sockets

摘要

This is the generic class for a chuck or a socket, perse, that is not elsewhereclassified, and which includes a means for making a permanent or temporary and readily--releasable connection between a holder and an object, such as a tool, work-piece, or rod-like body, where the gripping means or seat is on or within the holder or base member. This class includes a recessed handle, a spindle, and the like, adapted to receive a tool, a tang, a rod or like body, whether permanently or in such manner as to be readily released. This class also includes a typical machine-chuck with jaws and a tool-holding socket with a detent to grip