G05D 7/00 Control of flow
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- CONTROLLING; REGULATING
- Subclass:
- SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
Additional Content
Limiting references
Level control Control of flow ratio
Application references
Controlling the air quantity in hair drying helmets Controlling flow of media to the human body Controlling flow of gases or vapour in electrostatic separators Control of fluent material in coating devices Flow-control devices in apparatus or devices for dispensing beverages on draught Automatic means for reducing or intermittently interrupting flow for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers Controlling gas flow through gas purifiers Controlling flow of drilling fluid for flushing boreholes Controlling the flow of the obtained fluid to or in wells Controlling by varying flow non-positive-displacement machines or engines Controlling lubrication pressure or quantity Control of coolant flow for cooling machines or engines in general, or for internal-combustion engines Control of gas-turbine working fluid flow , Throttle passages in pipes Controlling air flow rate in air treatment arrangements Controlling of air or gas flow in dryers Controlling the rate of feed or discharge in continuous flow weighing apparatus Control of nuclear power plant by varying flow of coolant
Related Keywords
3 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
Top Applicants
Top 10 applicants by patent filingsfor class G05, 2013–2023, worldwide · Source: EPO PATSTAT
- SIEMENS DE 4,725
- SGCC(STATE GRID CORPORATION OF CHINA) 4,571
- FANUC JP 4,233
- MITSUBISHI ELECTRIC CORPORATION JP 3,143
- FANUC 2,981
- ROBERT BOSCH DE 2,813
- CHINESE ACADEMY OF SCIENCES 2,500
- LG ELECTRONICS KR 2,182
- OMRON CORPORATION JP 2,036
- SAMSUNG ELECTRONICS COMPANY KR 1,981