Patents
Patents for G01P 13 - Indicating or recording presence or absence of movement; Indicating or recording of direction of movement (5,618)
04/1991
04/30/1991US5011278 Optical correlator method and apparatus for particle image velocimetry processing
04/25/1991DE3935586A1 Measuring appts. for direction of motion of point on vehicle - has opto-electrical transducer on vehicle or wheel hub and computer processing digitised raster
04/24/1991EP0423394A1 Inductive movement sensor
04/18/1991WO1991005114A1 Water discharging apparatus
04/17/1991EP0422362A2 Pulse generator for a household appliance provided with control and display devices
04/17/1991EP0422212A1 Optical correlator method and apparatus for particle image velocimetry processing
04/17/1991EP0256124B1 Wind shear detection and alerting system
04/16/1991US5007426 Method for depiction of moving parts in a body by nuclear magnetic resonance experiment
04/09/1991US5006833 Sewer line restriction alarm placed in clean out plug
04/09/1991CA1282737C2 Flow control system using boyle's law
04/02/1991US5004981 Detector device for simultaneously detecting both the direction and number of rotations of rotating member
03/1991
03/26/1991US5002389 Pulsed fluorescence velocimeter
03/26/1991US5002090 Flow detector
03/21/1991DE3922164C1 Display glass joint for pipeline - has threaded section for washers for releasable fixing and preventing expansion or deformation from welding
03/19/1991US5000566 Optical velocimeter
03/19/1991US5000184 Directional component measurement by echography
03/14/1991DE4026998A1 Monitor for continuous pressure ratio between two regions - contains temp. sensors before and after heater in connecting line
03/13/1991EP0242396B1 Synchronous fm digital detector
03/05/1991US4996875 Apparatus and method for evaluation of fluid flow within a combustion chamber
02/1991
02/21/1991DE3943469A1 Non-marking RPM measurement at smooth shafts - determining angular deviation alpha of reflector of external resonator of laser-sensor compared to vertical of optical axis
02/21/1991DE3927351A1 Wind speed=direction measuring unit with transmitter block
02/07/1991DE3925294A1 Monitoring arrangement for liquid flow in line - has spring loaded piston-like obstruction and damping chambers, and is unaffected by sudden flow changes
01/1991
01/31/1991DE3923854A1 Side-wind measuring system for motor vehicle
01/29/1991US4988191 Electro-optical method and system for determining the direction of motion in double-exposure velocimetry by shifting an optical image field
01/24/1991WO1991000986A1 Flow detection
01/23/1991EP0408566A1 Process and circuit for a brake system with anti-lock and/or traction slip control.
01/22/1991US4987542 Arrangement for determining the effects of cross winds on vehicles
01/22/1991US4987301 Reflective optical encoder device with light beams applied as spats spaced by 2 predetermined pitch
01/22/1991US4986782 Liquid flow detector system
01/22/1991US4986122 Fluid velocity measurement instrument
01/10/1991DE3921834A1 Wind pendulum switch - measures wind load independently of direction with externally mounted active switching element and continuous adjustment control rim,
01/09/1991EP0406978A1 Motion sensor apparatus
01/08/1991US4983917 Method for measuring flows in a nuclear magnetic resonance experiment
01/08/1991CA1278843C Flow control system using boyle's law
01/07/1991CA2020618A1 Motion sensor apparatus
01/03/1991DE4018834A1 Arrangement for distinguishing between opposite movement directions - has inductive sensor of periodic magnetic asymmetries with pole shoes at varying separations
01/03/1991DE3921231A1 Flow monitor, e.g. for buffer soln. in high pressure - LC has chamber with inlet, outlet and contact electrode arrangement
01/02/1991EP0405792A2 Movement detection system
01/02/1991EP0301063B1 Wind-vane with magnetic bearing
01/01/1991US4981158 Non-contact control
01/01/1991US4981040 Sight flow indication apparatus with multi-sealing protective arrangements
12/1990
12/31/1990CA2020213A1 Movement detection system
12/27/1990EP0404657A1 Apparatus to determine the sense of movement of a mobile object
12/25/1990US4979818 Apparatus for measuring movement of light scattering bodies in an object
12/19/1990EP0402977A1 Device for determining the speed and direction of a flowing medium
12/18/1990CA1277851C Laser doppler spectrometer for the statistical study of the behavior of microscopic organisms
12/12/1990EP0402345A2 Speed and direction monitor for motor vehicles
12/06/1990DE3917496A1 Level sensor with permanent magnet operating electrical switch - installed at lower end of vertical pipe sealed by non-magnetisable material against medium
12/05/1990EP0400981A2 A null flow sensor
12/05/1990CN2066987U Electronic detector for machine stop
12/02/1990CA2018124A1 "null" flow sensor
11/1990
11/28/1990EP0398909A1 Apparatus for determining the speed, angular position and direction of rotation of a rotatable shaft.
11/21/1990CN1010506B Speed detecting arrangement
11/20/1990US4972332 Apparatus for determining the speed, angular position and direction of rotation of a rotatable shaft
11/06/1990US4968879 Method and apparatus for measuring aircraft flight parameters
11/01/1990WO1990013036A1 Optical correlator method and apparatus for particle image velocimetry processing
10/1990
10/31/1990EP0307709B1 Device for detecting the rotation and/or for measuring the rotation speed of a small dc motor with permanent or electro-magnets
10/31/1990DE3935778A1 Mass measurer for flowing medium - has hot film air mass measurer with two hot films in flow measuring pipe esp. for intake air of IC engine in motor vehicle
10/30/1990US4967072 Interferometric rotating condition detection apparatus
10/16/1990US4963857 Translatable dual magnets
10/09/1990US4962370 Off-center cap-level magnetic float sewer alarm
10/03/1990EP0389709A1 Apparatus for measuring and controlling fluid flow across a boundary
09/1990
09/27/1990CA2010878A1 Apparatus for measuring and controlling fluid flow across a boundary
09/26/1990EP0332690A4 Enhanced pressure measurement flow control system
09/25/1990US4958524 Flow meter
09/20/1990WO1990010876A1 Electro-optical method and system for determining the direction of motion in double-exposure velocimetry by shifting an optical image field
09/19/1990EP0387710A2 Puls generator
09/18/1990US4958248 Reflective tachometer/headwheel assembly for a rotary head scanner
09/18/1990US4958077 Method and apparatus for displaying moving objects
09/11/1990US4955785 Fan structure with flow responsive switch mechanism
09/04/1990US4953402 Wind measuring system (anemorhumbometer)
09/04/1990CA1273563A1 Method and device for detecting a fluid flow
09/04/1990CA1273533A1 Fluid flow indicator
08/1990
08/07/1990US4947153 Apparatus for monitoring the flow of fluid from a metering pump
08/07/1990US4945948 Sight flow indicator
08/07/1990CA1272397A1 Method for measuring the direction and force of gaseous or liquid flows and probe for carrying out this method
07/1990
07/31/1990US4945344 Fluid flow sensor having light reflective slider
07/31/1990CA1272156A1 Optical milk flow detector and vacuum shutoff for milker
07/17/1990US4941348 Electromotive sensor
07/05/1990DE3940832A1 Fibre optic flow monitor for multiple phase flows - contains fibre optical position filter acting as differential grid for flow contg. ferromagnetic impurities
07/03/1990US4939756 Two-phase encoder circuit
06/1990
06/27/1990EP0375019A1 Device for detecting the movement of a part
06/27/1990EP0374822A1 Pulsed fluorescence velocimeter and method for fluorescence measurement of velocity
06/26/1990US4937558 Flow failure detector
06/14/1990WO1990006517A1 Apparatus for determining the speed, angular position and direction of rotation of a rotatable shaft
06/14/1990WO1990006504A1 Optoelectronic sensing device
06/13/1990DE3841135A1 Measuring element
06/12/1990US4933636 Self-aligning tachometer and method of manufacturing same
06/12/1990US4932256 Heat transmission measuring instrument, in particular flow monitor
06/09/1990CA2003708A1 Apparatus for determining the speed, angular position and direction of rotation of a rotatable shaft
06/06/1990CN2058012U Passive running fault monitor
06/05/1990US4931776 Fluid flow sensor with flexible vane
06/05/1990US4930436 Selectively positionable weather vane and display for vertical post
06/05/1990US4930343 In a paint spraybooth facility
05/1990
05/30/1990EP0370203A1 Acceleration pick-up sensor
05/23/1990CA2003566A1 Respiration monitor
05/22/1990US4927261 Method and apparatus for photographing a movement
05/15/1990US4926037 Apparatus and method to control the precisional position of a light weight motor energized by radiant energy
05/15/1990CA1269148A1 System and method for ice movement detection in determination of ice breakup
05/10/1990DE3837390A1 Standstill sensor
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