CPC Definition - Subclass B27B
This place covers:
Saws for sawing wood:
- Wood saws characterised by the active element:
- band or strap: B27B 13/00, B27B 15/00
- chain: B27B 17/00
- other kinds: B27B 23/00
- Portable or hand saws for wood: B27B 9/00, B27B 21/00
- Active elements of wood saws: B27B 23/00, B27B 33/00
- Accessories for wood saws: B27B 25/00, B27B 31/00
- Sawing trunks or logs, saws specially adapted therefor: B27B 1/00, B27B 3/00, B27B 7/00, B27B 15/00
Other large areas covering sawing are B23D 45/00-B23D 65/00 (sawing in general, sawing metal) and B28D 1/02 (sawing stone). B23D is the main entry for sawing. Precedence is given to B23D. Features not restricted to a particular type of saw are classified in B23D. However, such features are classified in B27B if a more specific entry exists in B27B, for example:
- B27B 5/30: mounting/securing devices for circular saw blades or spindles
- B27B 5/38: braking devices for the circular saw blade or the spindle
- B27B 17/00: details of chain saws, equipment for chain saws
- B27B 27/00: guide fences or stops
- B27B 33/14: saw chains
This place does not cover:
Sawing in general (unless a more specific entry exists in B27B) | |
Constructional features of particular parts per se of sawing machines or sawing devices | |
Details or components, e.g. casings, bodies, of portable power-driven saws not particularly related to the operation performed | |
Safety guards or devices specially designed for wood saws | |
Sawing stone or stone-like materials | |
Accessories specially adapted for use with machines for sawing of gems, jewels, crystals | |
Sawing gems, jewels, crystals with discs or wheels | |
Sawing gems, jewels, crystals with blades or wires | |
Accessories specially adapted for use with machines or devices for sawing stone |
Attention is drawn to the following places, which may be of interest for search:
Saws specially adapted for pruning or debranching | |
Sawing apparatus specially adapted for felling trees | |
Meat or bone saws | |
Surgical saws | |
Saws for dentistry | |
Grinders for cutting-off | |
Auxiliary devices facilitating proper operation of wood saws |
In this place, the following terms or expressions are used with the meaning indicated:
Feeding work | moving a workpiece into engagement with a saw blade while sawing |
Conveying or transporting work | moving a workpiece before, after or between sawing operations |
Discharging work | moving a workpiece away from a saw blade after sawing |
This place does not cover:
Saw benches with non-feedable circular saw blades for cross-cutting laterally fed workpieces | |
Cross-cutting reciprocating saws with power drive |
This place covers:
Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks
This place does not cover:
Sawing machines working with circular saw blades for length sawing of trunks | |
Arrangements for adjusting the mutual distances of circular saw machines for lengthwise sawing of trunks | |
Circular saws combined with band or strap sawing machines specially designed for length cutting of trunks | |
Machines for cutting through a work-piece with a tool having a rotational vector which is parallel to the surfaces generated by cutting | |
Slotting or mortising machines |
This place covers:
Saws with straight reciprocating saw blades.
This place does not cover:
Band or strap sawing machines specially designed for length cutting of trunks | |
Devices for guiding strap saw blades in general | |
Devices for tensioning strap saw blades in general |
This place covers:
Band or strap sawing machines specially designed for length cutting of trunks
This place does not cover:
Slotting or mortising machines equipped with chain cutters |
This place covers:
Saws with oscillating saw blades |
This place does not cover:
Saw guides | |
Saws benches or saw bucks for chain saws | |
Fret saws with hand drive | |
Work benches, horses in general |
This place does not cover:
Cutting with hot wire |
This place does not cover:
Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; travelling trunk or log carriages | |
Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines |
This place does not cover:
Devices for mitring wood | |
Safety guards or devices specially designed for wood saws | |
Constructional features of measuring devices |
This place does not cover:
Travelling trunk or log carriages for logs being held in a cantilever manner | |
Gripping, clamping, or holding devices, travelling carriages for other timber | |
Safety guards or devices specially designed for wood saws |
This place does not cover:
Arrangements for raising or lowering the feed rollers of gang saw mills | |
Driving mechanisms for the feed rollers of gang saw mills | |
Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; travelling trunk or log carriages | |
Article or material handling devices associated with conveyors |
Attention is drawn to the following places, which may be of interest for search:
Devices for determining the axis of a trunk |
This place does not cover:
Saw chains for slotting or mortising devices |