Cooperative Patent Classification

CPC Definition - Subclass G12B

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Last Updated Version: 2016.11
CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
Definition statement

This place covers:

Only details which are restricted to mechanical measuring instrument.

Relationships with other classification places

Details which already are covered by any other subclass in sections A, F, G or H are classified under those corresponding places and not under G12B.

References
Limiting references

This place does not cover:

Details restricted to the measuring instruments covered by the relevant subclasses of class G01, e.g. G01D

Constructional details restricted to electric apparatus, e.g. casings, screenings

Constructional details restricted to electronic apparatus, e.g. casings, screenings

Informative references

Attention is drawn to the following places, which may be of interest for search:

Insulation or protection of buildings

Damping of shock or vibrations movement

Emergency protection of apparatus in general

Emergency protection of apparatus in general

Screening of lighting devices

Cooling by refrigeration

Heat-exchange or heat-transfer details

Calibrating of measuring instrument

G01

Optical filters

In connection with acoustic waves

In connection with nuclear radiation

Cooling of electronic apparatus

Electromagnetic shielding of electronic apparatus

Special rules of classification

Attention is drawn to the Notes following the IPC title of section G, especially as regards to the definition of the term "measuring" in Note (2) following the title of class G01.

Groups G12B 3/00, G12B 13/00, G12B 15/00, G12B 17/00 are not used anymore for classifying new documents.

Groups G12B 1/00, G12B 5/00, G12B 9/00 and G12B 11/00 are used only very rarely.

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Apparatus:

a category of subject matter which is a machine or device, described in terms of its functional capabilities or structural features, that is used to make a product, or to carry out a non-manufacturing process or activity.

Sensitive elements capable of producing movement or displacement for purposes not limited to measurement; Associated transmission mechanicsms therefor
Definition statement

This place covers:

Actuating mechanisms of small size, e.g. Micromotion actuators for microdisplacement.

References
Limiting references

This place does not cover:

Thermometers using bimetallic elements

Thermally-actuating switches

Informative references

Attention is drawn to the following places, which may be of interest for search:

Bellows in general

Details of movements not otherwise provided for (damping of shock or vibrations in general F16F; avoiding out-of-balance forces F16F 15/00; testing balance G01M)
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Damping of shock or vibrations in general

Avoiding out-of-balance forces

Testing balance

Special rules of classification

This group deals with obsolete technology and is therefore not used for classifying new documents

Adjusting position or attitude, e.g level, of instruments or other apparatus, or of parts thereof (levels per se G01C 9/00); Compensating for the effects of tilting or acceleration, e.g. for optical apparatus
Definition statement

This place covers:

Adjusting mechanisms of small size, e.g. sensor positioning devices.

References
Limiting references

This place does not cover:

Level per se

Adjusting means of optical elements

Compensating for the effects of temperature (by cooling G12B 15/00)
References
Limiting references

This place does not cover:

Compensating by cooling

Housing or supporting of instruments or other apparatus
Definition statement

This place covers:

Mechanical details of casings, housings, cabinets etc. for accommodating a mechanical measuring instrument, or supports and devices for carrying or holding such instruments.

References
Limiting references

This place does not cover:

Supports adapted for vehicle instrument

Supports adapted for aircraft instrument

Housings of measuring instrument

Supports for measuring instrument

Informative references

Attention is drawn to the following places, which may be of interest for search:

Supports in general

Indicating elements; Illumination thereof
Definition statement

This place covers:

  • Illuminating device of instruments in general.
  • Indicating elements of instruments.
References
Limiting references

This place does not cover:

Illumination of measuring instrument

G01D211/28