IPC Definitions - January 01, 2012

G01L - Definition fr

Definition statement

This subclass covers:

Apparatus or methods for measuring force, stress, torque or the like, and particularly:

Apparatus or methods for measuring fluid pressure, and particularly:

Apparatus or methods for measuring, indicating or recording:

Vacuum gauges.

Testing or calibrating of the apparatus as described.

Details or accessories of the apparatus as described.

Relationship between large subject matter areas

For subject matter relating to sensing pressure changes for compensating measurements of other variables or for compensating readings of instruments for variations in pressure, see subclass G01D or other relevant subclasses for the variable measured.

References relevant to classification in this subclass

This subclass does not cover:

Weighing

G01G
Examples of places where the subject matter of this class is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Measuring blood pressure for diagnostic purposes

A61B 5/02

Measuring fluid pressure within the human body other than blood pressure for diagnostic purposes

A61B 5/03

Measuring muscular strength or the force of a muscular blow for diagnostic purposes

A61B 5/22

Measuring tension, compression or roll-force specially adapted for metal-rolling mills

B21B 38/06, B21B 38/08

Devices for measuring, signalling, controlling, or distributing tyre pressure specially adapted for being mounted on vehicles

B60C 23/00

Applications of tensometers to sewing machine elements

D05B 47/06

Measuring pressure in boreholes or wells

E21B 47/06

Levelling between separate points or surveyors' levels by using barometric means

G01C 5/06

Measuring volume flow, mass flow or volume of fluid by measuring pressure or differential pressure

G01F 1/34, G01F 1/88, G01F 22/02

Measuring or indicating level of liquid or fluent material by measurement of pressure

G01F 23/14

Weighing apparatus wherein the balancing is effected by fluid action, with means for measuring the pressure imposed by the load on a liquid

G01G 5/04

Testing of engines by monitoring pressure in cylinders or fluid ducts

G01M 15/08-G01M 15/09

Meteorology

G01W 1/00

Converting a pattern of forces into electrical signals

G06K 11/00

Informative references

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

Torque indicators in wrenches or screwdrivers

B25B 23/14

Application of tension indicators for adjusting or controlling tension in filamentary material

B65H 59/40

Tyre-inflating valves

B60C 29/00

Supplying air for tyre inflation

B60S 5/04

Devices for indicating tension in warp or cloth

D03D 49/18

Indicating lubricant pressure in machines

F01M 1/20

Indicating coolant pressure in machines or engines

F01P 11/18

Special adaptations of indicating, measuring, or monitoring equipment for the filling or discharging of vessels

F17C 13/02

Embedding pads or other sensitive devices in paving or other road surfaces

E01F 11/00

Measuring the deformation in a solid by mechanical strain gauges

G01B 5/30

Measuring the deformation in a solid by resistance strain gauges

G01B 7/16

Measuring the deformation in a solid by optical strain gauges

G01B 11/16

Measurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves

G01H

Testing steering behaviour of vehicles

G01M 17/06

Investigating strength properties of solid materials by application of mechanical stress

G01N 3/00

Devices characterised by the determination of the variation of atmospheric pressure with height to measure the vertical components of speed

G01P 3/62

Scanning-probe techniques using atomic force microscopy

G01Q

Hollow bodies deformable or displaceable under pressure, e.g. Bourdon tubes, bellows

G12B 1/04

Switches operated by change of fluid pressure

H01H 35/24

Controllable semiconductor devices by variation of applied mechanical force, e.g. of pressure

H01L 29/84

Dynamo-electric clutches; Dynamo-electric brakes

H02K 49/00