| Patents for H01H 35 - Switches operated by change of a physical condition (7,690) |
|---|
| 05/10/1977 | US4022998 Acceleration and retardation responsive electric control device |
| 05/10/1977 | US4022997 Collision detecting apparatus for motor vehicles |
| 05/10/1977 | US4022128 Land mine |
| 04/26/1977 | US4020453 Sensing system for actuating a safety device |
| 04/26/1977 | US4020302 Sensor having spring biasing structure to retain conductive bridging inertial mass in a non-operative position |
| 04/19/1977 | US4018078 Calibration system for magnetic switches used in wrist instruments |
| 04/12/1977 | US4017697 Keyboard membrane switch having threshold force structure |
| 04/05/1977 | US4016535 Tilt alarm for tractor vehicle or the like |
| 03/15/1977 | US4012613 Inertial switch |
| 03/15/1977 | US4012611 Inertia switch for anti-intrusion sensing systems |
| 03/08/1977 | US4011536 Liquid sensor |
| 03/08/1977 | US4011418 Vibration responsive switch |
| 03/01/1977 | US4010337 Toggle device |
| 03/01/1977 | US4009662 Discriminating sensor for contact fuzing |
| 02/08/1977 | US4007344 Pressure operated electrical switch construction |
| 02/08/1977 | US4007343 Method and apparatus for sensing fluid pressure |
| 02/01/1977 | US4006329 Switch for sensing a selected ratio between two different pressures |
| 02/01/1977 | US4006327 Pneumatic tire pressure sensing switch |
| 01/04/1977 | US4001533 Sealed level control switch for sump pumps |
| 01/04/1977 | US4001531 Water alarm switch |
| 01/04/1977 | US4001185 Acceleration sensing device |
| 12/28/1976 | US4000408 Vehicular electrical safety apparatus |
| 12/28/1976 | US4000386 Fluid operated electrical relays and systems |
| 11/30/1976 | US3995127 Device for automatically stopping high-altitude working vehicle in response to overload |
| 11/16/1976 | US3992598 Airflow velocity switch |
| 11/16/1976 | US3992597 Mechanical motion detector |
| 11/16/1976 | US3992130 Sump pump system and pressure responsive switch assembly therefor |
| 11/16/1976 | US3991678 Magnetic land mine device |
| 11/02/1976 | US3989911 Magnetic differential pressure switch |
| 11/02/1976 | US3989910 Control device and method of making the same |
| 10/12/1976 | US3985986 Differential pressure warning switch |
| 10/12/1976 | US3985985 Brake fluid level sensing system |
| 10/05/1976 | US3984650 Fluid pressure diaphragm switch having plural adjustment mechanisms |
| 10/05/1976 | US3984649 Fluid operated electrical switch construction |
| 10/05/1976 | US3984647 Switching mechanism associated with governor mechanism |
| 09/28/1976 | US3983351 Electrical switch construction and method of making the same |
| 09/28/1976 | US3983347 Automatic kill switch assembly |
| 09/21/1976 | US3982217 Pressure-operated switch |
| 09/14/1976 | US3980987 Brake failure indicator |
| 09/14/1976 | US3980847 Piggy back electric float switch |
| 09/07/1976 | US3979570 Switching apparatus |
| 09/07/1976 | US3979569 Water level sensing device having rupturable hygroscopic-type switch actuator |
| 08/31/1976 | US3977650 Switching device |
| 08/24/1976 | US3976899 Snap action mechanical-electrical piezoelectric transducer |
| 08/10/1976 | US3974350 Gas damped vehicular crash sensor with gas being dominant biasing force on sensor |
| 08/03/1976 | US3973095 Intrusion detector sensitive to resonant frequency of breaking glass |
| 07/06/1976 | US3968339 Apertured diaphragm end valve |
| 06/29/1976 | US3967079 Collision detection device |
| 06/29/1976 | US3965759 Safety device for the drive of a closing member |
| 06/22/1976 | US3965314 Collision detecting switch with rectilinearly movable weight sensors |
| 06/15/1976 | US3964004 Thermostatic switch with standby contacts |
| 06/15/1976 | US3963889 Low velocity flow switch |
| 06/15/1976 | US3963888 Multi-angle tilt switch device with adjustable oscillating controller |
| 06/15/1976 | US3963887 Pressure-responsive switch device for pneumatic tires |
| 06/15/1976 | US3963885 Gravity actuated miniature switch for watch having switch actuator magnetic retaining structure |
| 06/08/1976 | US3962693 Motion detection device including a pendulum switch |
| 06/08/1976 | US3962665 Thermally actuated liquid level sensor |
| 06/01/1976 | US3961156 Combination temperature and pressure relief valve with energy cutoff switch |
| 06/01/1976 | US3960015 Well flow sensing apparatus |
| 05/18/1976 | US3958092 Apparatus for discriminating between liquid and gaseous flow |
| 05/04/1976 | US3954249 Drain devices in hydraulic control circuits |
| 04/27/1976 | US3953692 Pressure responsive switch for converting pressure variations to electrical variations |
| 04/27/1976 | US3953691 Inertia switch for detecting impending locking of a rotary member, such as a vehicle wheel |
| 04/27/1976 | US3952611 Control unit having adjustable differential and method of making the same |
| 04/20/1976 | US3952284 Variable fluid pressure actuated vehicle tail light system |
| 04/13/1976 | US3950626 Rotary centrifugally-operated electrical switch for motors |
| 03/23/1976 | US3946225 Optoelectronic switch |
| 03/23/1976 | US3946176 Differential pressure switch |
| 03/23/1976 | US3946175 Magnetic pressure indicator for a container |
| 03/23/1976 | US3946174 Positive and negative pressure breath control device |
| 03/23/1976 | US3946173 Acceleration/deceleration actuating mechanism for wrist instruments |
| 03/16/1976 | US3944770 Switch assembly |
| 03/16/1976 | US3944769 Pressure sensing means and method for making a pressurized container means and system utilizing the same |
| 03/16/1976 | US3944764 Inertia sensor switch |
| 03/09/1976 | US3942366 Fuel injection arrangement |
| 03/02/1976 | US3942051 Shock actuated electrical pulse generator |
| 03/02/1976 | US3941958 Filter bypass indicator |
| 03/02/1976 | US3940999 Shock sensor |
| 02/24/1976 | US3940637 Polymeric piezoelectric key actuated device |
| 02/24/1976 | US3940581 Switch construction, particularly for indicating automobile seat loading |
| 02/24/1976 | US3939758 Pressure sensor |
| 02/17/1976 | US3939316 Panic stoplight system for automobiles using a fluid pressure switching device |
| 02/10/1976 | US3938076 Vehicle tire pressure sensing device |
| 02/10/1976 | US3937912 Pressure responsive circuit control unit having adjustable, interchangeable actuator components and cam-operated switch |
| 02/10/1976 | US3937911 Circuit breaker for small size motors |
| 02/03/1976 | US3936793 Humidity and temperature responsive switch |
| 02/03/1976 | US3936622 Load limiter |
| 01/13/1976 | US3932853 Apparatus for warning of the failure of a sump pump |
| 01/13/1976 | US3931764 Accelerator switch |
| 01/13/1976 | US3931738 Device for monitoring fluid pressure in mechanisms such as hydrostatic fluid bearings |