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)
11/1988
11/29/1988US4788444 Liquid level detection
11/29/1988US4787407 Method and apparatus for the detection of the fluid level in a tank being filled
11/29/1988US4787329 Device for detection of imminent gas depletion of a liquified gas tank and gas lighter equipped with this device
11/29/1988US4787240 Liquid measurement arrangement
11/23/1988EP0292060A1 Level indicator with front reading
11/22/1988US4786869 Toner level sensor
11/22/1988US4786857 Electrical proportion measuring apparatus
11/22/1988US4786846 Level guage apparatus
11/22/1988US4785665 Measuring instrument that senses heat transfer along a probe
11/22/1988US4785664 Ultrasonic sensor
11/22/1988US4785663 Level control instrument
11/17/1988WO1988008985A1 Sonic system for measuring liquid height or level
11/17/1988EP0290842A2 Method for the determination of the level of fluent material and for calibration of a pneumatic hoisting device
11/17/1988DE3714956A1 Device for monitoring rain overflows
11/15/1988CA1244907A1 Self-fill system
11/15/1988CA1244905A1 Emergency refrigerant containment and alarm system apparatus and method
11/10/1988DE3821221A1 Electrical device with container monitoring
11/10/1988DE3813763A1 Device for the measurement of the level of a non-conducting liquid in the interior of a tank
11/10/1988DE3742313A1 Device for measuring the limit level and controlling the level of mainly very light, free-flowing bulk goods, especially prefoamed expandable polystyrene (EPS)
11/10/1988DE3714520A1 Device for the cyclic determination of the transit time of a sound signal in a fluid-filled container
11/09/1988EP0290302A2 Measuring device comprising a rheostat-type transducer, particularly for gauging the fuel in the tank of an automotive vehicle
11/09/1988EP0290294A2 Automatic control system for filling beverage containers
11/09/1988EP0289837A2 Liquid level sensing device
11/09/1988CN88210755U Continuous heavy hammer material position detecting device
11/09/1988CN88105385A Comprter controlled steam drum fluviograph
11/08/1988US4782754 Mechanism having ink reservoir with electrodes for ink monitoring in ink printer devices
11/08/1988US4782699 Pulsed fuel level indicating system
11/08/1988US4782698 Method and apparatus for measuring oil level
11/08/1988CA1244535A1 Digital method for the measurement and control of liquid in a continuous casting mold
11/03/1988WO1988008605A1 Sensor apparatus
11/03/1988DE3713032A1 Water monitor with a water sensor
11/03/1988DE3713031A1 Water monitor
11/03/1988DE3712699A1 Sensor
11/02/1988EP0289303A2 Liquid quantity determining apparatus and method
11/02/1988EP0289172A2 Liquid quantity measuring apparatus and method
11/02/1988EP0289165A1 Liquid quantity indicator
11/02/1988EP0288514A1 Fiber optic sensor apparatus
11/02/1988CN87102867A High-pressure corrosion-resistant magneto-optical liquid level measuring device
11/01/1988US4782451 Process for maintaining liquid supply
11/01/1988US4781061 Process for monitoring the gas volume in an hydropneumatic accumulator and apparatus for carrying out the process
11/01/1988US4780925 Dipstick guide with automatic wiper
11/01/1988CA1244108A1 Low liquid level sensing and warning circuit
10/1988
10/26/1988EP0288215A2 Determination of electrical capacitance and resistance
10/26/1988CN87216409U Rail-wire type float mechanism
10/25/1988US4780861 Automatic control system for filling beverage containers
10/25/1988US4780705 Overfill sensing system
10/25/1988US4780663 Gauge for measuring the conductance of a liquid present between two electrodes
10/25/1988US4779460 Sensor and system for measuring the level of a liquid in a container
10/25/1988CA1243757A1 Distance measurement method making use of electromagnetic wave and system therefor
10/20/1988WO1988008187A1 A measuring instrument, preferably for watercraft
10/19/1988EP0287098A2 Residual-ink detector and a liquid injection recording apparatus comprising the detector
10/19/1988CN88200496U Measuring device for oxygen top-blown convertor
10/18/1988US4777832 Liquid level sensor, used in an automatic station for preparing immunologic dosages
10/18/1988US4777821 Measuring apparatus for measuring the alteration of a liquid quantity, especially the quantity of oil in an internal combustion engine
10/12/1988CN87215727U Lever detector for heat-tube exchanger
10/12/1988CN87215507U Liquid coulor lever gauge
10/11/1988CA1242877A1 Device for determining the profile of the charging surface of a shaft furnace
10/06/1988WO1988007663A1 Visual indicator
10/06/1988DE3708997A1 Fill level monitoring device
10/04/1988US4775435 Method of manufacturing a liquid level probe
10/04/1988US4774838 Liquid level indicating apparatus
10/04/1988CA1242594A1 Fiber optic level sensor for humidifier
09/1988
09/29/1988DE3708678A1 Device for cyclically determining a signal time as a measure of the filling level of a liquid in a container, in particular in motor vehicles
09/28/1988CN87209196U Radio remote-reporting instrument for tide
09/27/1988US4774676 Linear digital flowmeter
09/27/1988US4773884 Separate lubricating system for marine propulsion device
09/27/1988US4773265 Method for detecting leaks
09/27/1988US4773260 Fuel-level detecting system for automotive vehicle
09/22/1988WO1988007175A1 Device for measuring levels
09/21/1988EP0282655A2 Fiber optic structure
09/21/1988CN87210778U Folded sensor for pressure of liquid level
09/21/1988CN87210744U Two-colour double-functional flat level gauge
09/20/1988US4771804 Liquid level sensing and control assembly
09/15/1988DE3811269A1 Gas take-off valve for liquid-gas containers
09/15/1988DE3707385A1 Fuellstandsmessvorrichtung The level measurement
09/14/1988CN87216002U Capacitive contineous digital display material position meter
09/14/1988CN87214070U Lxf-1 model material position signal generator
09/13/1988US4771272 Pendent liquid level alarm apparatus
09/13/1988US4771271 Silicon based low level liquid sensor having a fast response time
09/13/1988US4770047 Optical fiber sensor
09/13/1988US4770039 Device for indicating level of liquid contents remaining in tank
09/13/1988US4770038 Ultrasonic depth gauge for liquids under high pressure
09/13/1988US4770033 Method and apparatus for determining and indicating the quantity of a stored liquid or solid material
09/13/1988CA1242017A1 Heater and water probe
09/08/1988DE3706453A1 Liquid-level signal transmitter for motor vehicles
09/08/1988DE3706254A1 Device for determining a signal time which is assigned to the level of a liquid in a container, in particular in motor vehicles
09/08/1988DE3706048A1 Probe for determining the amount of fuel in fuel tanks
09/07/1988EP0281272A1 High pressure electrode assemblies
09/07/1988CN88200398U Glass tube type liquid level indicator
09/06/1988US4768377 Method and apparatus for measuring the liquid level in tanks subjected to varying accelerations
08/1988
08/31/1988EP0279836A1 Opto-electronic detector
08/31/1988CN88203639U Low ground potential liquid level light well display device
08/30/1988US4766860 Warning system of filter binding in liquid supplying system
08/25/1988DE3803745A1 Machine
08/25/1988DE3737545A1 Device for checking the acid level in accumulator batteries (rechargeable batteries)
08/24/1988CN87214588U 水位监测器 Level Monitors
08/23/1988US4765945 Method and apparatus for measuring the filling level in a reactor pressure vessel of a boiling-water reactor
08/23/1988US4765187 Liquid thickness gauge
08/23/1988US4765186 Liquid level detector by guided elastic waves
08/23/1988CA1241087A1 Apparatus for detecting water in fuel
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