Patents
Patents for H01H 35 - Switches operated by change of a physical condition (7,690)
08/1978
08/29/1978US4110576 Pressure responsive switch
08/29/1978CA1037587A1 Switch assembly
08/29/1978CA1037586A1 Brake fluid level sensing system
08/15/1978US4107545 Mounting construction for motion sensor
08/15/1978US4107492 Pneumatic operated switch having movable flag, switch actuator mounted thereon, and switch in chamber displaced from measured flow path
08/08/1978US4106068 Pressure sensitive interrupter
08/01/1978US4104495 Pressure switch and actuating means responsive to low pressure
08/01/1978US4104493 Switch for detecting collision of vehicle
08/01/1978US4104492 Gravity actuated light socket and switch means
08/01/1978US4103842 Locking sensor for belt retractor
08/01/1978US4103697 Safety sensor device
08/01/1978US4103544 Turbine engine surge detector
07/1978
07/25/1978US4103269 Thermostat and tip switch assembly
07/25/1978US4103124 Plug-in pressure switch
07/18/1978US4101747 Differential pressure operated switch
07/11/1978US4100382 Permanent magnet latch for speed switching device
07/04/1978US4099166 Fuel safety switch
06/1978
06/27/1978US4097699 Viscous damped crash sensor unit with inertia switch
06/27/1978US4097698 Seismonastic switches with inertia responsive controller
06/20/1978US4095566 Vacuum timing system
06/06/1978US4093836 Acceleration sensitive switch
06/06/1978US4093835 Rotation sensor switch
05/1978
05/23/1978US4091249 Pressure sensitive electrical switch having a snap element
05/23/1978US4090286 Fluid operated diaphragm assembly and method of making the same
05/16/1978US4090048 Differential pressure actuated switch with contact on diaphragm
05/09/1978US4088222 Belt switch
05/02/1978US4087688 Infrared radiation-burglary detector
05/02/1978US4087662 Axial torsion pressure transducer
04/1978
04/25/1978US4086457 Float switch signalling two different liquid levels
04/25/1978US4086453 Game tracking device
04/18/1978US4085336 Liquid flow activated switch
04/18/1978US4085305 Liquid flow switch
04/18/1978US4085304 Vibration switch having threaded terminals and plural roller contacts
04/11/1978US4084073 Float-type pump control switch
04/11/1978US4084072 Pressure differential switch device
04/04/1978US4082960 Pneumatically operated pressure switch, particularly for vehicle tire supervision
04/04/1978US4082929 Electric switch actuated in dependence on pressure, particularly an evaporator thermostat for refrigerators
04/04/1978US4082927 Electrical magnetic switch adaptable for use in digital wristwatches
03/1978
03/28/1978US4081638 Level control with float actuated switch
03/28/1978US4081637 Pressure operated switch construction having a one-piece base and control shaft bracket structure
03/28/1978US4081636 Differential pressure cutout switch
03/28/1978US4081635 Electrical switch responsive to a predetermined fluid flow
03/28/1978US4081621 Pressure switch with diaphragm and valve means
03/14/1978US4079215 Switching device with pressure actuation of plural switches
02/1978
02/21/1978US4074588 Control unit having an adjustable differential and method of making the same
02/14/1978US4074097 Fluid responsive sealed pivot arm means
02/14/1978US4074096 Bellows controlled sudden pressure rise relay
02/14/1978US4074095 Flow operable switch device
01/1978
01/31/1978US4071723 Plunger-release shock responsive control apparatus having adjustable seat for sensor mass
01/24/1978US4070700 Detecting element for a control device for invalids
01/03/1978US4066858 Vertical float switch
12/1977
12/27/1977US4065669 Solid-state limit switch utilizing infrared link
12/13/1977US4063057 Temperature compensated pressure differential sensing devices, including improved press-to-test and glass header switch mounting
12/13/1977US4063052 Inertia switch having a variable operating threshold
11/1977
11/29/1977US4060004 Sensor adapted to be triggered by deceleration forces
11/15/1977US4058695 Calibrated electrical motor switch
11/15/1977US4058134 Interceptor actuated by seismic vibrations
11/08/1977US4057773 Magnetic switch
11/08/1977US4057699 Density control monitor with opposing bellows
10/1977
10/25/1977US4055828 Condition responsive control device
10/18/1977US4054764 Speed responsive switching device
10/18/1977US4054763 Pressure switch and gauge
10/18/1977US4054051 Thermostatic control
10/11/1977US4053735 Assured-check computer-based bank credit disbursing system
10/11/1977US4053725 Pressure switch for outdoor refrigeration systems
10/04/1977US4052616 Infrared radiation-burglary detector
10/04/1977US4052574 Pressure switch with snap-toggle adjusting means
10/04/1977US4052120 Optical apparatus for producing a light curtain
09/1977
09/27/1977US4051338 Load responsive switch actuator
09/27/1977US4050644 Inertia responsive control device
09/20/1977US4050047 Condition-responsive spring driven actuator
09/20/1977US4050046 Thermostatic switch
09/20/1977US4049935 Pressure switch with diaphragm
09/13/1977US4048455 Pressure switch with plural axes pivoted conduction plate
09/06/1977US4047167 Relaxation switch
09/06/1977US4047048 Master cylinder with combined reservoir cover, seal and fluid level sensor assembly
08/1977
08/23/1977US4044209 Material sensing switch
08/16/1977US4042797 Electric safety switch with positive-action mechanism
08/16/1977US4042796 Inertia switch for sensing vibration forces
08/02/1977US4039790 Inertia switch having reciprocating mass
08/02/1977US4039789 Theft protection sensor switch
07/1977
07/26/1977US4038507 Oil level regulator and shut-down device for stationary engines and compressors
07/26/1977US4038506 Oil pressure switch having improved diaphragm seal
07/26/1977US4037317 Method of making fluid operated electrical switch construction
07/19/1977US4036143 Impact contact device for projectiles
07/12/1977US4035058 Electro-optical switch and a method of manufacturing same
07/05/1977US4034174 Wind warning device
07/05/1977US4034173 Centrifugal actuated electric motor switch structure
07/05/1977US4034171 Means for energizing a color television picture tube during manufacture
06/1977
06/28/1977US4032777 Photomeric monitoring device
06/28/1977US4032733 Omnidirectional inertia switch
06/21/1977US4031342 Material sensing switch
06/14/1977US4029920 Float type electric circuit breaker for swimming pools
06/07/1977US4028516 Acceleration detector switch having magnetic biased conductive oscillating controller
06/07/1977US4028512 Liquid level actuated electrical switch
06/07/1977US4028510 Safety device actuatable by seismic vibrations
05/1977
05/31/1977US4027130 Cable activated switch
05/24/1977US4025744 Shock and vibration sensitive switch
05/17/1977US4024364 Pressure switch mechanism and cam stop arrangement therefor
05/10/1977US4023000 Direct drive sliding contact transducer
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