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PLANING, DRILLING, MILLING, TURNING, OR UNIVERSAL MACHINES (machine tools in general B23; working wood using abrasive, e.g. sanding, devices B24; tools for these purposes B27G)
Definition statement
This subclass/group covers:

Planing, drilling, milling, turning (Wood-turning devices for reducing sticks of wood to a desired form by means of rotary or non-rotary cutters brought into engagement with the circumference of the continuously-rotating stick or by means of rotary or non-rotary cutters revolving circumferentially around and in engagement with the stick or that portion of the stick to be reduced), universal machines

Informative references
Attention is drawn to the following places, which may be of interest for search:
Machine tools in general
Working wood using abrasive, e.g. sanding, devices
Tools for these purposes
Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
Definition statement
This subclass/group covers:

knives or blades for planers and jointers B27C 1/00

Woodworking machines used to produce a flat surface along a board's length (jointer or planer)

with rotating or non-rotating tools

with tools having a rotational vector which is perpendicular to the working surface B27C 1/005

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  • For cutting through a work-piece with a tool having a rotational vector which is parallel to the surfaces generated by cutting B27C 1/007
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  • Smoothing, i.e. working one side only B27C 1/02
  • Thicknessing machines B27C 1/04
  • Machines for smoothing and subsequent thicknessing B27C 1/06
  • Machines for working several sides of work simultaneously B27C 1/08
  • Hand planes equipped with power-driven cutter blocks B27C 1/10
  • Arrangements for feeding work B27C 1/12
  • Other details or accessories B27C 1/14
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cutter blocks; Other rotary cutting tools
Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
Synonyms and Keywords

In patent documents the following expressions "jointer", "planer", "surface planer", "buzzer" and "flat top" are often used as synonyms.

Drilling machines or drilling devices; Equipment therefor (B23B takes precedence)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Drill jigs
General-purpose boring or drilling machines or devices
Special rules of classification within this subclass/group

B23B takes precedence

Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor (turning B27C 7/00; features of copying devices B23Q 35/00; slotting, mortising, making tongues or grooves B27F)
References relevant to classification in this group
This subclass/group does not cover:
Turning
Features of copying devices
Slotting, mortising, making tongues or grooves
Wood-turning machines; Equipment therefor (B23B, B23G, B23Q, take precedence; features of copying devices B23Q 35/00)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Features of copying devices
Multi-purpose machines; Universal machines; Equipment therefor
Definition statement
This subclass/group covers:

Machines that are useful for many purposes, e.g., convertible machines (machines that cannot be defined by the tool used if they have one or more spindles in which tools of different categories can be inserted, i.e drill or mill or saw etc., thus designed for performing more than one operation) and machines which carry out multiple operations whether the same or different.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Multi-step processes
Machines designed for producing special profiles or shaped work, e.g. by rotary cutters
Slotting, mortising, making tongues or grooves
This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013