Patents
Sitemap › G01 - Measuring; Testing › G01H - Measurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves › G01H 17 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the other groups of this subclass
Patents for G01H 17 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the other groups of this subclass (3,373)
07/1982
07/20/1982US4340021 Ignition advance angle controlling device
07/07/1982EP0055298A1 Ignition timing control apparatus for an internal combustion engine
07/06/1982US4337642 Device for judging knocking strength
07/06/1982US4337641 Device for detecting engine knock
06/1982
06/22/1982US4335612 Method of detecting irregularities on bevel gears
06/22/1982CA1126387A1 Fault detection device
06/15/1982CA1125891A1 Automatic machine tool including a monitoring system
06/08/1982US4333334 Knocking discrimination apparatus
06/01/1982CA1124827A1 Method of detecting rubbing between rotating body and stationary body
05/1982
05/18/1982US4329871 Undesirable combustion characteristic detection apparatus
04/1982
04/29/1982WO1982001416A1 Method and apparatus for detecting and identifying excessively vibrating blades of a turbomachine
04/28/1982EP0050197A1 Device and method for producing pneumatic tires having preselected noise characteristics
04/14/1982EP0049659A1 Method and device for the acoustic control of an industrial installation
03/1982
03/23/1982US4320729 System for controlling ignition timing in engine
03/17/1982EP0047394A1 Engine knock control apparatus
03/16/1982US4319480 Knock detector device for internal combustion engines
01/1982
01/19/1982CA1116740A1 Acoustic insulation measurement apparatus
01/13/1982EP0043747A1 Acoustic remote control device testable by means of supply voltage variation
01/06/1982EP0042945A1 Apparatus for and method of storing characteristics of an acoustic field
12/1981
12/08/1981US4304629 To electronically discriminate between hard object impact and background noise
11/1981
11/24/1981US4302813 Method of controlling operation of rotary machines by diagnosing abnormal conditions
11/18/1981EP0039993A2 Internal combustion engines having knock control
11/18/1981EP0039992A2 Internal combustion engines with engine knock control
10/1981
10/29/1981WO1981003049A1 Ignition timing control apparatus for an internal combuston engine
10/14/1981EP0037436A1 Process for quality control for production processes and machines
09/1981
09/22/1981US4290398 Ignition timing control system for internal combustion engine
09/22/1981US4290301 Knock detecting apparatus for internal combustion engine
09/15/1981US4289102 Engine spark timing controlling device
08/1981
08/11/1981US4282756 Apparatus for estimating the strain on an inaccessible portion of a rotating shaft
08/04/1981US4281551 Apparatus for farfield directional pressure evaluation
07/1981
07/21/1981US4279143 Electronic pinking detector
07/07/1981US4276861 Engine knock control with knock pulse duration adjustment
07/07/1981CA1104368A1 Device for measuring vibration amplitude
06/1981
06/09/1981US4271799 Knocking control device
06/02/1981US4271469 Method for detecting knocking in internal combustion engine
05/1981
05/26/1981US4269155 Ignition timing control system for internal combustion engines
05/19/1981US4268910 Method for controlling timing of spark ignition for an internal combustion engine by feedback related to the detection of knocking
05/06/1981EP0028081A2 Method and apparatus for detecting frictional wear in plain metal bearings
05/05/1981CA1100621A1 Artificial ear for telephonometric measurements
04/1981
04/21/1981US4262538 Method of detecting rubbing between rotating body and stationary body
04/14/1981US4261313 Method of and apparatus for controlling ignition timing of an internal-combustion engine
03/1981
03/25/1981EP0025485A1 Device for registering measured values of test pieces
03/17/1981US4255965 Apparatus for detecting oscillations occurring during engine knock
01/1981
01/20/1981US4245602 Ignition timing control method for internal combustion engine
01/06/1981US4243008 Method for controlling ignition timing of internal combustion engine
12/1980
12/11/1980WO1980002744A1 Apparatus for measuring acoustic frequency characteristics
12/02/1980US4236491 Ignition timing control apparatus for internal combustion engines
11/1980
11/26/1980EP0019398A1 Monitoring apparatus for rotating machinery
11/18/1980US4233944 Method for controlling ignition timing of internal combustion engine
11/12/1980EP0018853A2 Method of and system for the detection of object impact
09/1980
09/30/1980CA1086853A1 Automatic method and apparatus for digitally indicating response characteristics of geophones of a geophysical data acquisition system
09/17/1980EP0015852A1 Device for measuring the total or the directional power emitted by an acoustical source
08/1980
08/19/1980US4218614 Device for measuring vibration amplitude
06/1980
06/10/1980CA1079390A1 Detection of incipient damage in rolling contact bearings
05/1980
05/27/1980US4205373 System and method for accessing memory connected to different bus and requesting subsystem
05/27/1980US4204432 Acoustic insulation measurement apparatus
04/1980
04/01/1980US4195528 Fault detection device
02/1980
02/05/1980CA1071321A1 Acoustical wave transmitter in a liquid medium
12/1979
12/25/1979US4180811 Detecting device for destructive vibration of structures
10/1979
10/02/1979US4169370 Method for evaluating surges of motor vehicles
05/1979
05/08/1979US4153388 Method and apparatus for monitoring the state of oscillation of the blades of a rotor
05/01/1979US4152555 Artificial ear for telephonometric measurements
02/1979
02/13/1979US4139835 Device for transmitting acoustic waves through a liquid medium
10/1978
10/31/1978CA1041632A1 Noise discrimination apparatus
10/24/1978US4122445 Breakage detector having a conductive bent metallic leaf spring therein
05/1978
05/09/1978US4089055 Electronic monitoring apparatus
05/09/1978US4088899 Method for controlling an automatic machine tool
04/1978
04/11/1978US4083234 Method of and system for detecting misfire in internal combustion engine
08/1977
08/23/1977US4043175 Automatic method and apparatus for digitally indicating response characteristics of geophones of a geophysical data acquisition system
05/1977
05/10/1977US4023044 Automatic machine tool including a monitoring system
01/1977
01/25/1977US4004464 Method and transducer and apparatus for selectively measuring oscillation components from an oscillation spectrum
01/11/1977US4002155 Engine and engine spark timing control with knock limiting etc.
01/1976
01/27/1976US3934459 Torque monitoring system for rotating shaft
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