US PATENT CLASS 81
Class Notes
Current as of: June, 1999
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DEFINITION
Classification: 81/
In this class are tools which are not structurally limited to any classified art.
This class is limited to hand tools, except in the subclasses noted in Subclass References to the Current Class, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3.1, -3.33, 9.1, 9.51, 15.2, 17+, 52.3+, 52.4+, 54+, for subclasses in which the subject matter is not limited to hand tools.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS
29, Metal Working,
700+, for a hand tool for assembling or disassembling parts and meeting the criteria specified in the subclass 700 definition.
30, Cutlery, 92+, for pipe and rod cutters.
72, Metal Deforming,
409+, for a plier-type bending tool, and subclasses 462+ for a metal deforming tool, per se, not elsewhere classifiable. If assembly is involved, as in crimping a sleeve on a wire, see Class 29, Metal Working, subclass 700.
140, Wireworking,
93.2+, for a tool for tightening a wire or band around a stack of items and applying or forming a fastener or seal to a wire or band.
166, Wells,
55+, for apparatus for cutting and perforating well tubing in situ.
173, Tool Driving or Impacting, appropriate subclass for subject matter directed to driving or impacting a tool, when such subject matter includes combined features peculiar to tool driving, but which does not include features limiting the subject matter to a specific tool art, such as specific shape of the work contacting portion of a tool, related
tools, or an opposed work support. Only
52.3+, of Class 81 has been cleared as to subject.
254, Implements or Apparatus for Applying Pushing or Pulling Force, appropriate subclasses for a tool which includes a force multiplier or energy transducer to apply the pushing or pulling force. Pliers, clamps, or other hand grippers by which force is applied directly by the hand are classified in Class 81.
269, Work Holders, 3+, for patents to an operator supported work holder. Class 269 is the residual locus for patents to a device for clamping, supporting and/or holding an article (or articles) in position to be operated on or treated.
294, Handling: Hand and Hoist-Line Implements, appropriate subclasses for a hand-held holder for the transportation or mere handling of an article.