IPC Definitions - January 01, 2012
G01F - Definition
This subclass covers:
Apparatus or methods for measuring the volume flow or mass flow of fluids or fluent solid materials.
Apparatus or methods for metering by volume.
Apparatus or methods for measuring the capacity of containers or cavities, or the volume of solid bodies, fluids or fluent solid materials.
Level indicators.
Details, accessories, testing or calibrating of the apparatus as described.
References relevant to classification in this subclass
This subclass does not cover:
Measuring linear dimensions to determine volume | G01B |
Milk flow sensing devices in milking machines or devices | A01J 5/01 |
Food containers with dispensing devices for dispensing a certain quantity of powdered or granulated foodstuffs | A47G 19/34 |
Apparatus for making beverages having water-level controls | A47J 31/56 |
Measuring blood flow | A61B 5/026, A61B 8/06 |
Metering media introduced into the human body, e.g. drip meters | A61M 5/168 |
Controlling the quantity of fluent-solid material fed into a container during packaging by volumetric measurement | B65B 1/36 |
Controlling the quantity of plastic material, semi-liquids, liquids, or mixed solids and liquids, fed into a container during packaging by volumetric measurement | B65B 3/30 |
Separating measured quantities from supply by volume measurement | B65B 37/20 |
Bottling liquids or semi-liquids with provision for metering the liquids to be introduced, e.g. when adding syrups | B67C 3/20 |
Arrangements of liquid volume meters or volume-flow meters in liquid-delivering apparatus, e.g. for retail sale purposes | B67D 7/16 |
Measuring liquid level in wells | E21B 47/04 |
Indicating devices for lubricant level | F01M 11/12 |
Measuring intake air flow to generate a control signal for control of supply of combustible mixture in combustion engines | F02D 41/18 |
Proportioning devices in lubricating systems | F16N 27/00 |
Arrangements for measuring the quantity of conveyed product in pipe-lines | F17D 3/18 |
Adaptation of level indicators to, or mounting on, steam boilers | F22B 37/78 |
Controlling water feed or water level for steam generation | F22D 5/00 |
Rainfall or precipitation gauges | G01W 1/14 |
Apparatus actuated by coins, cards or the like with meter-controlled dispensing of liquid or gas | G07F 15/00 |
Reactor-coolant flow measuring or monitoring in nuclear reactors; Moderator- or coolant-level detecting devices in nuclear reactors | G21C 17/032, G21C 17/035 |
Accumulators combined with arrangements for measuring, testing, or indicating condition, e.g. level or density of the electrolyte | H01M 10/48 |
Attention is drawn to the following places, which may be of interest for search:
Filters | B01D |
Burettes or pipettes | B01L 3/02 |
Weighing a continuous stream of material during flow | G01G 11/00 |
Measuring pressure | G01L |
Measuring speed of fluids, e.g. of air stream | G01P 5/00 |
Determining a distance or velocity using sonar, radar or lidar techniques | G01S |
Control of flow; Control of level; Control of ratio | G05D 7/00, G05D 9/00, G05D 11/00 |
Alarm devices | G08B |
Electric switches operated by change of liquid level, e.g. float switches, or by a change of fluid flow | H01H 35/18, H01H 35/24 |