(under the class definition) Device comprising structure to be connected to a tool for sustaining the tool against gravity; which sustaining structure is to partake of all movements of the tool and have no movement relative to the tool during the operation of the tool.
SEE OR SEARCH THIS CLASS, SUBCLASS:
199+, especially subclasses 226 and 231+, for similar structure in combination with a tool.
SEE OR SEARCH CLASS
279, Chucks or Sockets, appropriate subclasses, for a tool-holding chuck or socket of general utility. Examples of holding means of "general utility" are as follows; (a) a holding means having two or more separately classified, disclosed but unclaimed utilities, (b) a holding means having two or more separately classified utilities recited in the same claim, and (c) a holding means of no particular utility at all. A claim to a holding means of the specific utility of this class (408) will be found in this subclass even if the total disclosure is to a holding means of general utility. (Usually a patent reciting a chuck having a plurality of jaws that converge on a common axis are deemed to be of general utility and therefore will be found in Class 279 while other type tool-holders are deemed to be specific to use with a tool of this class and are therefore to be found herein.)
