Patents
Sitemap › G01 - Measuring; Testing › G01F - Measuring volume, volume flow, mass flow, or liquid level; Metering by volume › G01F 23 - Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
Patents for G01F 23 - Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm (31,056)
12/1991
12/24/1991US5074053 Magnetically actuated linear position sensor
12/24/1991CA1293390C Level control instrument
12/17/1991US5073720 Liquid level and volume measurement device
12/17/1991US5073253 Froth level measurement
12/17/1991US5072774 Continuous casting mold arrangement
12/17/1991US5072625 Liquid level and sampling gauge
12/17/1991US5072618 Adjustable LPG gauge
12/17/1991US5072617 Fiber-optic liquid level sensor
12/17/1991US5072616 Fiber optic level alarm
12/17/1991US5072615 Apparatus and method for gauging the amount of fuel in a vehicle fuel tank subject to tilt
12/12/1991WO1991019191A2 Multi-level probe and system for measurement of physical conditions in liquid-containing tanks
12/12/1991WO1991019171A1 Fluid level detector system and apparatus
12/12/1991DE4118952A1 Level sensor, esp. for liquids in containers - has measurement rod protruding into measurement medium contg. electrical functional element on thermally conducting carrier rod
12/11/1991EP0460432A2 Oil level control system
12/11/1991CN2090522U Float photoelectric steel-tape liquid level indicator
12/11/1991CN2090521U Bicolor glass tube liquid level indicator
12/10/1991US5071093 Liquid propellant supply device for spacecraft adapted to predict the end of its service life
12/10/1991US5070731 Device for measuring the level of liquid contained in a substantially deep reservoir
12/10/1991US5070730 Device for level gauging with microwaves
12/10/1991CA1292885C Portable liquid level gauge
12/05/1991DE4017314A1 Liquid level indicator for plant container - has contacts at minimum and maximum levels with immersion detection circuit operated for defined period by pushbutton
12/04/1991EP0459755A1 Ink level control system for offset printing presses
12/04/1991EP0459049A1 Apparatus and process for determining thickness of the slag formed on molten steel
11/1991
11/28/1991WO1991018267A1 Device for measuring and visualizing continously the relative concentration, at various locations, of containers holding liquids or other products
11/28/1991WO1991018266A1 Fluid pressure operated volume measurement with level calibration means
11/28/1991DE4016970A1 Container liquid level measurement - using electrothermal sensor with sensor resistance subjected to constant voltage at intervals, measurement of time
11/27/1991CN2089621U Liquid level transmitter
11/27/1991CN2089620U Broad-spectrum refraction transmission double colour liquid level gage
11/26/1991US5068527 Wide range fiber optical displacement sensor
11/26/1991US5068503 High-pressure sensor for fluid conditions and method and apparatus using same
11/26/1991CA1292580C Process control equipment for use in adverse environments
11/26/1991CA1292554C Automatic liquid level recording device
11/23/1991CA2017396A1 Apparatus for monitoring the height of a liquid above the apparatus, and the use thereof for controlling a sewage pumping station
11/21/1991EP0457231A2 Fluid leak detecting probe
11/21/1991DE4015964A1 Container valve for low boiling point, inflammable liquids - enables probe and removal and replacement without emptying container
11/20/1991CN2089164U Pressure type liquid level indicator
11/19/1991US5065892 Structure for mounting liquid level sensors and the like in liquid containers
11/19/1991US5065624 Installations for measuring liquid depth
11/19/1991US5065623 Water Monitor
11/14/1991DE4025326A1 Level measurement, esp. in vehicle engine sump - using detection of ultrasonic pulses transmitted through liquid and reflected back from surface
11/14/1991DE4014990A1 Liquid lever measurement arrangement - uses ultrasonic pulse reflection from surface and transition time measurement for use with moving or static liquid e.g. in vehicle fuel tank
11/13/1991EP0456084A1 Wet vacuum machine
11/12/1991US5065139 Portable level sensing apparatus
11/12/1991US5065037 Corrosion resistant refractive and adsorptive type optical liquid level sensors
11/12/1991US5064529 Apparatus for testing membrane filters
11/12/1991US5063778 Apparatus for measuring the level of a liquid in a wetwell
11/12/1991US5063776 Method and system for measurement of fluid flow in a drilling rig return line
11/08/1991CA2037847A1 Capacitive fluid level sensor
11/08/1991CA2037526A1 Capacitive fluid level sensor
11/06/1991EP0455474A2 Level indicating in vehicle holding tanks
11/06/1991CN2088239U Oil-level indicator
11/06/1991CN2088238U Magnetic level indicator with light emitting diode as an indicator
11/06/1991CN2088237U Water gauge
11/06/1991CA2041830A1 Suction device for liquids
11/05/1991US5062304 Urine collection monitor with temperature sensing
11/05/1991US5062295 Dual tube sonic level gage
11/05/1991US5062277 Combined oil heater and level sensor
11/05/1991CA1291675C Fuel tank float
11/05/1991CA1291652C Suspended-cable apparatus for measuring a preselected condition of material in a vessel
10/1991
10/31/1991DE4013224A1 Fluidised bed height measurement - in waste material pyrolysis reactor
10/30/1991EP0453709A2 Device to measure the content of liquid fuel in a fuel tank
10/30/1991EP0453708A2 Level measuring apparatus for gasoline tanks
10/30/1991CN2087777U Ultrasonic intelligent charge-level detecting and controlling instrument
10/30/1991CN2087776U Telemetering water-level post
10/30/1991CN2087775U Pressure liquid level signal device
10/29/1991US5061085 Thermostatic bimetallic measuring element
10/29/1991US5060560 Low-water element safety control
10/29/1991US5060512 Liquid level detecting apparatus
10/29/1991US5060484 Bin level control circuit and transducer mounting system for an ice making machine
10/29/1991CA1291534C Level measurement for storage silos
10/24/1991DE4012841A1 Air conditioning or cooling system esp. for motor vehicle - has coolant level detector responding differently to liquid and gas
10/24/1991DE4012419A1 Two-phase mixt. vol flow measuring appts. - useful for measuring heat consumption of paper drying cylinder
10/23/1991EP0453226A2 Fiber optic liquid leak detector
10/23/1991EP0452624A1 Plumbline device to determine the height of charge in a shaftfurnace
10/23/1991EP0233187B1 Portable gas grill
10/23/1991CN2087332U Automatic liquid-level warner
10/22/1991US5059954 Liquid level sensing system
10/22/1991US5059902 Electromagnetic method and system using voltage induced by a decaying magnetic field to determine characteristics, including distance, dimensions, conductivity and temperature, of an electrically conductive material
10/22/1991US5059812 Control apparatus for controlling an aspirator tube in an automatic sample dispenser
10/22/1991US5058421 Water leak and water level detector
10/22/1991US5058420 Fiber optic liquid leak detector
10/22/1991US5058288 Plumb bob device for determining the bed height of bulk material in a shaft furnace
10/21/1991CA2039082A1 Fiber optic liquid leak detector
10/17/1991DE4011949A1 Magnetic immersion probe - has measurement path contg. contacts actuated by magnet on float enabling contact testing
10/17/1991DE4011639A1 Liq. level measurer with no moving parts - has temp. sensors above and below level on inside or outside of heated region of container wall
10/16/1991EP0452141A2 The determination of a characteristic of a medium
10/16/1991EP0451987A2 In-furnace slag level measuring method and apparatus therefor
10/16/1991EP0451689A2 Level indicator for a water reservoir of a household appliance
10/16/1991CN2086890U Charge level indicator
10/16/1991CN1055426A Distance measuring method and apparatus therefor
10/16/1991CN1055392A In-furnace slag level measuring apparatus
10/15/1991US5057823 Probe for sensing the presence of liquid in a container
10/15/1991US5057813 Oil level sensor for an internal combustion engine
10/15/1991US5056364 Fuel gauge assembly for LP gas tanks
10/15/1991US5056363 Integral temperature and liquid level sensor and control
10/09/1991EP0451128A1 Low friction trunnion bearing and high pressure seal
10/09/1991EP0450493A1 A dipstick locator
10/09/1991EP0450256A1 Optical fibre probe
10/09/1991EP0450175A1 Optoelectrical liquid level indication device
10/09/1991EP0450174A1 Device for optoelectrically measuring interfacial level and refractive index of fluids
1 ... 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 ... 311