| Patents for H01H 35 - Switches operated by change of a physical condition (7,690) |
|---|
| 03/04/1980 | US4191870 Pressure responsive switch having protection from overpressure of source |
| 03/04/1980 | US4191869 Vibration detector device |
| 03/04/1980 | US4191868 Seismic safety cutoff switch |
| 02/26/1980 | US4190752 Vacuum actuated switch |
| 02/26/1980 | US4189945 Seismic responsive operating device |
| 02/20/1980 | EP0007960A1 Bellows-operated devices |
| 02/12/1980 | US4188517 Collision detecting inertia switch |
| 02/06/1980 | EP0007763A1 Float operated electrical switch assembly |
| 02/05/1980 | USRE30207 Means for calibrating pressure switches at extra-low pressure settings |
| 02/05/1980 | US4186653 Bellows assembly and method of making the same |
| 01/29/1980 | US4185507 Acceleration responsive tripping mechanism |
| 01/22/1980 | US4185180 Vibration sensing device |
| 01/15/1980 | US4184057 Inertia switch assembly |
| 01/08/1980 | US4182952 Centrifugal switch |
| 01/08/1980 | US4182941 Improved pressure switch |
| 01/08/1980 | CA1069604A1 Switching device |
| 01/01/1980 | US4181835 Gas flow indicator having a magnetic field sensitive switch that _is responsive to the position of a magnet secured to a piston |
| 01/01/1980 | US4181831 Tire deflation monitor |
| 12/27/1979 | WO1979001143A1 Calibration mechanism for a pressure switch |
| 12/25/1979 | US4180714 Pressure-dependent electric switching device |
| 12/18/1979 | US4178714 Lighted and sounding toy |
| 12/18/1979 | CA1068314A1 Actuating device |
| 12/11/1979 | US4178492 Inertial electric switch |
| 12/04/1979 | US4177445 Contactless switching element for electric current |
| 11/29/1979 | WO1979001028A1 Switch device for controlling the closure of folding doors |
| 11/27/1979 | US4176340 Shock-responsive activating device for emergency flasher systems of automative vehicles |
| 11/20/1979 | US4174666 Springless impact switch |
| 11/20/1979 | US4174564 Pneumatic indicator device and method of making the same |
| 11/13/1979 | CA1066381A1 Permanent magnet latch for speed switching device |
| 10/30/1979 | US4172412 Fluid operated diaphragm assembly having a pair of like opposed diaphragms |
| 10/23/1979 | CA1065034A1 Plunger-release inertia-dependent switching devices |
| 10/02/1979 | US4169390 Adjusting mechanism for a snap-acting Belleville washer |
| 09/25/1979 | US4169261 Liquid level sensing apparatus |
| 09/19/1979 | EP0004056A1 Pressure-regulated water supply installation |
| 09/18/1979 | US4168415 Pressure switch having modular construction |
| 09/18/1979 | US4168410 Motion sensing alarm switch |
| 09/11/1979 | CA1062314A1 Pressure switch and gauge |
| 09/04/1979 | US4166936 Viscosity-compensating flow switch |
| 09/04/1979 | US4166641 Inflator for safety air bag in an automotive vehicle |
| 08/28/1979 | CA1061386A1 Temperature or pressure responsive switch units |
| 08/09/1979 | WO1979000500A1 An inertia switch device |
| 08/07/1979 | US4163964 Pneumatic or hydraulic pressure sensors with several thresholds of response |
| 07/25/1979 | EP0003188A1 Adjustable air pressure sensitive switch in a safety device for the control of the air flow necessary for the combustion in a gas burner |
| 07/17/1979 | US4161228 Vehicle crash detector |
| 07/10/1979 | US4160885 Electrical switch and method of operation |
| 07/03/1979 | US4160225 Temperature responsive control device with improved hydraulic diaphragm |
| 07/03/1979 | US4160139 Pressure sensitive switch |
| 06/14/1979 | WO1979000337A1 Bellows-operated devices |
| 06/12/1979 | US4158120 Electric and air signal element |
| 05/08/1979 | US4153846 Detector for liquid media |
| 05/01/1979 | US4152559 Pressure responsive device and piston seal |
| 04/24/1979 | US4151381 Reversal stop device |
| 04/18/1979 | EP0001388A1 Level switch, in particular for motor vehicles |
| 04/17/1979 | US4150268 Pressure operated switch construction having a one-piece control shaft bracket structure |
| 04/03/1979 | US4147999 Circuit breaker |
| 04/03/1979 | US4147906 Rotation paddle bin level indicator |
| 03/21/1979 | EP0001154A1 Shock and vibration responsive contact device incorporating two or more seismic elements |
| 03/20/1979 | US4145588 Condition responsive apparatus having freely disposed disc |
| 03/13/1979 | US4144515 Adjustable condition responsive control |
| 03/13/1979 | US4144422 Tilt actuated circuit breaker |
| 03/06/1979 | US4143255 Device for detecting fluid flow |
| 02/20/1979 | CA1049116A1 Control device having automatic switch opening means and method of making the same |
| 02/13/1979 | US4139750 Liquid level indicating device |
| 02/13/1979 | CA1048621A1 Rotary centrifugally-operated electrical switch for motors |
| 01/30/1979 | US4137434 Fluid pressure responsive device |
| 01/23/1979 | US4136330 Device for monitoring the flow and temperature of a coolant |
| 01/23/1979 | CA1047082A1 Membrane switch apparatus |
| 01/02/1979 | US4133016 Apparatus driven by an electric motor and incorporating a safety device |
| 01/02/1979 | US4132260 Method and apparatus for hardening of foundry cores |
| 01/02/1979 | CA1045696A1 Pressure sensitive mat switch construction |
| 12/26/1978 | US4131124 Seismic safety cutoff device |
| 12/26/1978 | CA1045229A1 Mechanical motion detector |
| 12/26/1978 | CA1045191A1 Condition responsive control device and transducer therefor |
| 12/19/1978 | CA1044781A1 Acceleration sensing device |
| 12/12/1978 | US4129759 Pressure responsive circuit interrupter |
| 12/12/1978 | CA1044294A1 Defogging glass plate |
| 12/12/1978 | CA1044289A1 Thermostat |
| 12/05/1978 | US4128747 Hinge for a pivotable arm of an electric snap switch |
| 11/21/1978 | US4126772 Switch for detecting tire pressure |
| 11/21/1978 | CA1042962A1 Oil pressure operated diaphragm type switch |
| 11/21/1978 | CA1042782A1 Well flow sensing apparatus |
| 11/14/1978 | CA1042529A1 Switch construction, particularly for indicating automobile seat loading |
| 11/14/1978 | CA1042509A1 Means for calibrating pressure switches at extra-low pressure settings |
| 11/07/1978 | US4124841 Motion detection device |
| 11/07/1978 | US4124833 Overcurrent protection equipment |
| 11/07/1978 | US4124331 Automatic control systems for a well pump installation |
| 10/24/1978 | US4122445 Breakage detector having a conductive bent metallic leaf spring therein |
| 10/24/1978 | US4122437 Intrusion alarm control system |
| 10/24/1978 | CA1041194A1 Mass in liquid vehicular crash sensor |
| 10/24/1978 | CA1040965A1 Density control monitor |
| 10/17/1978 | US4121074 Condition responsive apparatus with motion transfer member to movable contact arm |
| 10/17/1978 | CA1040726A1 Mechanical pressure detecting device |
| 10/10/1978 | US4119819 Fluid activated velocity switch |
| 10/03/1978 | US4118612 Actuating device for an invalid of plural electrical control circuits |
| 10/03/1978 | CA1039780A1 Differential pressure switch |
| 09/26/1978 | US4117281 Combination tire pressure monitoring switch and inflation valve |
| 09/26/1978 | US4116132 Inertial sensors |
| 09/19/1978 | US4115674 Mounting device |
| 09/12/1978 | US4114078 Mechanical torque limit for valve actuator |
| 09/05/1978 | CA1037704A1 Liquid for a feeler element for the electrical measurement of inclinations |