Classifications

• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
  • G05D16/00—Control of fluid pressure
  • G05D16/20—Control of fluid pressure characterised by the use of electric means
  • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
  • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
  • G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
  • G05D16/2046—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged for the control of a single pressure from a plurality of converging pressures
  • G05D16/2053—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged for the control of a single pressure from a plurality of converging pressures the plurality of throttling means comprising only a first throttling means acting on a higher pressure and a second throttling means acting on a lower pressure, e.g. the atmosphere
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N1/00—Sampling; Preparing specimens for investigation
  • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
  • G01N30/02—Column chromatography
  • G01N30/26—Conditioning of the fluid carrier; Flow patterns
  • G01N30/28—Control of physical parameters of the fluid carrier
  • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
  • G05D16/00—Control of fluid pressure
  • G05D16/20—Control of fluid pressure characterised by the use of electric means
  • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
  • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Immunology (AREA)
• Health & Medical Sciences (AREA)
• Biochemistry (AREA)
• General Health & Medical Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Pathology (AREA)
• Analytical Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Automation & Control Theory (AREA)
• Sampling And Sample Adjustment (AREA)
• Investigating Or Analysing Biological Materials (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=5361356

Family Applications (1)

Country Status (8)

Families Citing this family (1)

• 1966
  • 1966-04-12 AT AT344966A patent/AT270271B/de active
  • 1966-04-12 US US542164A patent/US3551110A/en not_active Expired - Lifetime
  • 1966-04-12 SE SE4950/66A patent/SE320822B/xx unknown
  • 1966-04-13 FR FR57384A patent/FR1475498A/fr not_active Expired
  • 1966-04-13 DE DE19661598256 patent/DE1598256A1/de active Pending
  • 1966-04-13 GB GB16170/66A patent/GB1149191A/en not_active Expired
  • 1966-04-13 BE BE679423D patent/BE679423A/xx unknown
  • 1966-04-13 CH CH533966A patent/CH483055A/de not_active IP Right Cessation

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