| Patents for G01P 13 - Indicating or recording presence or absence of movement; Indicating or recording of direction of movement (5,618) |
|---|
| 07/09/1985 | US4528682 Digital measuring instruments |
| 07/03/1985 | EP0146640A1 Period detection circuit |
| 06/25/1985 | CA1189347A1 Velocity sensor and method of producing a velocity signal |
| 06/19/1985 | EP0144708A2 Pulse generator |
| 06/11/1985 | US4523195 Rotational direction and angle detecting apparatus |
| 06/11/1985 | US4522069 Windvane |
| 05/28/1985 | US4520257 Electronic non-use power interruption safety device for an electric flat-iron |
| 05/14/1985 | CA1187161A1 Ultrasonic sensing |
| 05/08/1985 | EP0140813A2 Stabilized wind direction indicator |
| 05/07/1985 | US4515013 Apparatus for measuring the vertical acceleration due to the swell |
| 04/23/1985 | US4513233 Pulse monitor circuit for use as a fan speed monitor |
| 04/23/1985 | US4512367 Rotation detecting apparatus |
| 04/17/1985 | EP0137673A1 Motion sensor |
| 04/10/1985 | EP0136385A1 Fluid pressure differential detecting device |
| 04/09/1985 | US4509751 Golfer's wind indicator and ball retriever |
| 04/02/1985 | US4508941 Voice coil centering and suspension for vented pole piece |
| 03/26/1985 | US4507638 Rotary position sensors employing planar coils |
| 03/19/1985 | US4506339 Method and apparatus for measuring and monitoring the rate of rotation of fast running machines |
| 03/12/1985 | US4504823 Heavy rain rate warning indicator |
| 02/26/1985 | US4502050 Position discrimination device for a thumb wheel switch |
| 02/26/1985 | US4501293 Gas flow responsive signal output means |
| 02/19/1985 | US4500874 Filter monitoring system |
| 02/05/1985 | CA1182002A1 Wheel motion indicator |
| 01/29/1985 | US4495823 Bidirectional flow meter |
| 01/22/1985 | US4495488 Ultrasensitive apparatus and positioning method for detecting change in fluid flow conditions in relief flowlines associated with a chemical or refinery complex |
| 01/22/1985 | CA1181521A1 Pressure sensor for determining airspeed, altitude and angle of attack |
| 01/17/1985 | WO1985000228A1 Period detection circuit |
| 01/15/1985 | US4494112 Ultrasensitive apparatus and monitoring method for detecting change in fluid flow |
| 12/27/1984 | EP0129261A1 System and device for detecting the deposition of particles |
| 12/19/1984 | EP0128708A1 Liquid presence sensors |
| 12/18/1984 | US4488431 Wind speed and direction indicator and electric current generating means |
| 12/12/1984 | EP0127890A1 A tachymetric simulation method processing signals from an inductive position transducer and circuit for carrying out said method |
| 12/06/1984 | WO1984004836A1 An anchoring alarm, especially for leisure boats |
| 12/04/1984 | US4485671 Miniature electro-optical air flow sensor |
| 11/27/1984 | US4484536 Apparatus for indicating fluid flow |
| 11/13/1984 | US4481810 For sailing vessels |
| 11/06/1984 | US4481505 Illuminated mast-top wind indicator |
| 10/23/1984 | US4479056 Motion detector for space surveillance |
| 10/23/1984 | CA1176752A1 Rotational position and velocity sensing apparatus |
| 10/16/1984 | US4476875 Method and apparatus for measuring flow motions in a fluid |
| 10/16/1984 | US4476720 Unidirectional fluidflow sensor system |
| 10/09/1984 | US4476457 For producing output signals |
| 10/09/1984 | US4475407 Temperature compensated flow sensor |
| 10/02/1984 | US4475105 System for detecting mechanical movement |
| 09/25/1984 | US4472966 Marine speed log |
| 09/04/1984 | US4470012 Apparatus for generating rate signals |
| 09/04/1984 | US4468961 Fluid direction meter suitable for angle of attack meter for aircraft |
| 09/04/1984 | CA1173669A1 Flow transducer |
| 08/29/1984 | EP0116714A2 Magnetic revolution sensor |
| 08/28/1984 | US4468618 System for generating a speed-proportional voltage |
| 08/28/1984 | US4468617 Velocity sensor and method of producing a velocity signal |
| 08/28/1984 | CA1173266A1 Ultrasensitive apparatus and method for detecting change in fluid flow conditions, particularly in relief flowlines associated with a chemical or refinery complex |
| 08/21/1984 | CA1172872A1 Groundwater flow meter |
| 08/15/1984 | EP0115982A1 Electronic safety device for electric iron |
| 08/14/1984 | CA1172762A1 Evaluation circuit for a digital tachometer |
| 07/10/1984 | CA1170757A1 Apparatus and method for automatically de-energizing electrical operable equipment in response to a lack of animal activity for a predetermined time interval |
| 07/10/1984 | CA1170478A1 Bi-directional flow transducer |
| 07/03/1984 | US4458152 Precision specular proximity detector and article handing apparatus employing same |
| 07/03/1984 | US4458146 Photoelectric movement detector with varying amplitude light source |
| 06/26/1984 | CA1169690A1 Method for recording flow boundary layers in liquid media |
| 06/19/1984 | US4454768 Fluid flow controller |
| 05/22/1984 | US4450326 Anti-theft vibration detector switch and system |
| 05/22/1984 | US4449400 Radionuculide counting technique for measuring wind velocity and direction |
| 05/22/1984 | CA1167950A2 Object sensing apparatus |
| 05/01/1984 | US4446389 Quadrature tach decoder circuit |
| 05/01/1984 | US4446367 Pulse-producing transducer |
| 05/01/1984 | US4445395 Apparatus for measurement of ice movement |
| 04/25/1984 | EP0106777A1 Sea swell characteristics measuring apparatus |
| 04/24/1984 | CA1166059A1 Method of making families of steady-state heat transfer coefficient curves visible by photochemical means |
| 04/03/1984 | US4441102 Flow sensing apparatus |
| 04/03/1984 | US4441101 Grain sensor |
| 04/03/1984 | US4440110 For use in dairy equipment for sensing the flow of milk from an animal |
| 03/27/1984 | US4439729 Evaluation circuit for a digital tachometer |
| 03/20/1984 | US4437425 For sailboards |
| 03/06/1984 | CA1163094A1 Interferometer |
| 02/28/1984 | US4434418 Ultrasensitive apparatus and method for detecting change in fluid flow conditions in relief flowlines associated with a chemical or refinery complex |
| 02/21/1984 | US4433329 Ultrasensitive apparatus and method for detecting change in fluid flow during the occurrence of a transient condition |
| 02/15/1984 | EP0100715A1 De-icing device for an aerodynamic angle detector |
| 02/15/1984 | EP0100625A2 Measuring system of magnetometer setting direction |
| 02/15/1984 | EP0100502A1 A sensor |
| 02/14/1984 | US4431425 Volumetric metering device |
| 02/14/1984 | US4430886 Method and apparatus for sensing clogged nozzle |
| 02/07/1984 | US4429469 For an automobile |
| 01/31/1984 | US4429308 Electrode or pole piece array for creating prescribed electric or magnetic fields |
| 01/25/1984 | EP0098913A2 Movement sensor |
| 01/03/1984 | CA1159925A1 Motion sensing system |
| 12/20/1983 | CA1159128A1 Motion sensing apparatus with variable threshhold |
| 12/13/1983 | US4420699 Frequency to voltage converter for a digital tachometer |
| 11/30/1983 | EP0095386A1 Measurement of sperm motolity |
| 11/30/1983 | EP0095064A2 Pulse circuit for the production of signals indicating a variation of an electrical value |
| 11/22/1983 | US4417141 Optical shaft angle encoder |
| 11/15/1983 | CA1157141A1 Grain sensor |
| 11/08/1983 | US4414678 Electronic up-down conting system with directional discriminator |
| 11/08/1983 | US4414541 Motion sensing system |
| 10/18/1983 | US4410910 Motion detecting method and apparatus |
| 10/18/1983 | CA1155538A1 Device for the detection of sheet-like objects |
| 09/21/1983 | EP0089171A1 Quadrature tach decoder circuit |
| 09/14/1983 | EP0088624A1 Optical rotation detecting apparatus |
| 09/06/1983 | US4402614 Method and apparatus for measuring the motility of sperm cells |
| 09/06/1983 | US4402220 Wind direction indicator |