| Patents for F02P 17 - Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines (2,871) |
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| 07/18/1978 | US4101859 Magnetic pick up for use with electronic ignition systems |
| 07/18/1978 | US4101822 Instrument for testing a breakerless ignition system |
| 06/13/1978 | US4095170 Meterless ignition advance measuring device for internal combustion engines |
| 05/30/1978 | US4092585 Apparatus for measuring engine timing independent of speed |
| 05/30/1978 | US4092584 Dwell measuring apparatus |
| 05/16/1978 | US4090130 Capacitive coupled clamp-on voltage probe |
| 05/16/1978 | US4090125 Ignition indicator for internal combustion engines |
| 03/14/1978 | US4079311 Ignition timing measuring apparatus |
| 03/14/1978 | US4079310 Engine analyzing device |
| 02/14/1978 | US4074183 Apparatus for measuring the dwell of an automotive ignition system |
| 02/07/1978 | US4072891 Timing display ignition plate assembly |
| 01/31/1978 | US4070898 Tool for resetting aircraft spark plug gap |
| 01/24/1978 | US4070613 Ignition timing measuring apparatus |
| 01/10/1978 | US4068165 Circuit for determining the slope of a signal |
| 12/20/1977 | US4064450 Engine scope tester calibrator |
| 12/13/1977 | US4063152 Method and apparatus for timing light calibration |
| 12/06/1977 | US4061116 Knock level control apparatus for an internal combustion engine |
| 10/25/1977 | US4055079 Cylinder firing indicator |
| 10/11/1977 | US4053823 Ignition arc monitor circuit |
| 10/04/1977 | US4052665 Capacitive pickup device for pulsating high voltage measurements |
| 10/04/1977 | US4052663 Timing system for measuring angle of advance of fuel injection |
| 08/09/1977 | US4041373 Capacitive pulse pickup |
| 08/09/1977 | US4040294 Apparatus for detecting misfire in multicylinder internal combustion engine |
| 06/14/1977 | US4029966 Radiation-detecting devices and apparatus |
| 05/31/1977 | US4026621 Timing light adaptor |
| 05/24/1977 | US4024843 Fuel injection system for combination with internal combustion engines, having a universally connectable input trigger stage |
| 05/17/1977 | US4024469 Apparatus for measuring spark plug gap spacing |
| 05/17/1977 | US4023358 Internal combustion engine reactor protective control system |
| 04/26/1977 | US4020413 Emergency auto ignition kit and spark plug tester |
| 04/19/1977 | US4019127 Analog oscilloscope |
| 04/19/1977 | US4018086 System for maintaining a diesel engine |
| 03/22/1977 | US4013334 Diagnostic apparatus |
| 03/01/1977 | US4010419 Ignition analyzer time base |
| 03/01/1977 | US4010415 Sweep generator for engine analyzers |
| 03/01/1977 | US4010414 Advance and retard timing light |
| 02/15/1977 | US4008434 Engine diagnostic apparatus |
| 02/15/1977 | US4008431 Automobile engine tuning scope |
| 02/15/1977 | US4008430 Automotive test apparatus for coupling to the ignition system of automotive internal combustion engines |
| 02/01/1977 | US4006403 Engine performance analyzer |
| 01/25/1977 | US4005380 Clip-on inductive pulse pick-up |
| 01/25/1977 | US4005356 Ignition wave analyzer interface |
| 01/18/1977 | US4004213 Spark gap detector |
| 01/18/1977 | US4003248 Faulty combustion device for controlled ignition internal combustion engine |
| 12/28/1976 | US4000456 Engine diagnostic apparatus |
| 12/28/1976 | US3999383 Engine misfire protection system |
| 11/23/1976 | US3992930 Engine cylinder identification |
| 11/09/1976 | US3990303 Ignition analyzer for use with electronic ignition systems |
| 11/09/1976 | US3990302 Automotive ignition analyzer with cylinder of interest display |
| 10/12/1976 | US3986009 Power contribution measurement system for internal combustion engines |
| 09/21/1976 | US3982193 Circuit arrangement for generating a sampling pulse raster adapted to the variable period of quasiperiodic events |
| 09/07/1976 | US3979664 Capacitor discharge ignition testing apparatus employing visual spark gap indicator |
| 09/07/1976 | US3979598 Dual range adjustable delay circuit |
| 09/07/1976 | US3978721 System for maintaining a diesel engine |
| 08/03/1976 | US3972230 Detecting malfunction in cylinders of internal combustion engines |
| 07/20/1976 | US3970872 Circuit for generating a trigger blanking voltage for use in analysis of the ignition voltage waveform of an internal combustion engine |
| 07/13/1976 | USRE28904 Method and apparatus for testing internal combustion engines |
| 07/06/1976 | US3968425 Measuring ignition timing using starter current |
| 06/29/1976 | US3965677 Misfire detecting apparatus for an internal combustion engine |
| 06/22/1976 | US3964301 Engine brake horsepower test without external load |
| 06/01/1976 | US3961240 Testing electrical ignition systems of internal combustion engines |
| 06/01/1976 | US3961239 Signal conditioning circuit for vehicle diagnostic system |
| 05/25/1976 | US3959725 Distributor voltage sensor |
| 05/11/1976 | US3956691 Multiple function testing device for simultaneous testing of functions of an engine |
| 05/11/1976 | US3956689 Method of inspecting conditions of parts of electrical ignition type engines and apparatus therefor |
| 05/04/1976 | US3955135 Vehicle rpm and dwell measurement system |
| 03/23/1976 | US3946306 Ignition coil and capacitor analyzer utilizing the zero cross overs and peak voltage of the low coil ringing voltage |
| 03/23/1976 | US3946305 Ignition coil and capacitor analyzer utilizing the zero cross-overs and peak voltage of the low coil ringing voltage |
| 03/02/1976 | US3942102 Spark ignited combustion engine analyzer |
| 03/02/1976 | US3940977 Signal disabling engine diagnosing apparatus |
| 02/24/1976 | US3939711 Engine misfire detection system |
| 02/17/1976 | US3939397 Method and apparatus for determining the timing angle in internal combustion engines |