203030 ⎘
Switches operated by change of a physical condition Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
Sub-classes:PRESSURE ACTIVATED SWITCH
#2CONTROL MODULE FOR USE WITH A WELLBORE TOOL AND WELLBORE TOOLSTRING WITH CONTROL MODULE
#3TWO WIRE PRESSURE INDICATING SWITCH WITH ALL ELECTRONIC ARCHITECTURE WITH MILLIVOLT OPERATING SUPPLY
#4SENSOR ASSEMBLIES UTILIZING A ONE-PIECE THERMAL ISOLATED FITTING TUBE AND METHODS OF ASSEMBLING THE SAME
#5Contact signal acquisition circuit for on-site on-line check of gas density relay
#6Two wire pressure indicating switch with all electronic architecture with millivolt operating supply
#7Autonomous and irreversible pressure variation detector
#8Method and device for detecting switching value of pressure switch
#9Overload protection device and method, storage medium, compressor and electric appliance
#10Temperature-controlled device for switching off a heating installation
#11Submersible level sensing with transducer and jacketed cable
#12Pressure switch with corrugated sheets
#13Force amplified low pressure depth activated switch
#14Fluid signaling device
#15Overflow preventer
#16Electronic switch
#17Overflow preventer
#18Use of conducting fluid in printed circuits
#19Two lead electronic switch system adapted to replace a mechanical switch system
#20Orifice module for flow switch system
#21Portable pressure switch calibration and diagnostic tool
#22Method and device for testing a temperature-compensated, pressure-gradient-controlled pressure switch
#23Method for closing an electrical power supply circuit of an electric apparatus located in a chamber at a controlled variable pressure and related device
#24Sail switch for monitoring air flow
#25Swivel actuating pressure switch
#26Pressure switch
#27Measuring device for micro flow rate and nuclear power plant having the same
#28Tactile button device, tactile button assembly and single-use product
#29Power control unit with remote sensor
#30Flow indicators for surgical instrument reprocessing, and related systems and methods
#31Downhole supercapacitor device
#32Downhole supercapacitor device
#33Two lead electronic switch system adapted to replace a mechanical switch system
#34Downhole supercapacitor device
#35Apparatus for sectioning an electric energy flow in one or more conductors, and an electric energy generating plant comprising said apparatus
#36Hydrophone signal limiting shunt switch
#37Two lead electronic switch system adapted to replace a mechanical switch system
#38Clip device
#39Optical pressure switch, door operating system and method
#40Pressure monitoring system including multiple pressure switches
#41Two lead electronic switch system adapted to replace a mechanical switch system
#42Sensing modules and methods of using
#43Portable electronic apparatus
#44Water flow detection device
#45IMPLANTABLE SENSING MODULES AND METHODS OF USING
#46Ultra-thin, electronically conductive slice for button use
#47Adjustable pressure gauged switch for electric valve-less pumps
#48Switch and welding method of same
#49Semiconductor device with transistor-based fuses and related programming method
#50Pressure switch incorporated to electronic module of several equipment
#51Optical pressure switch, door operating system and method
#52Device for breaking/making an electric circuit
#53PRESSURE SWITCH STRUCTURE
#54Airflow detection apparatus
#55Micro-electro-mechanical module
#56Air blown electric switch device
#57Internal pressure explosion-proof system
#58Pressure activated latching switch
#59Miniature electro-optic device having a conductive element for modifying the state of passage of light between inlet/outlet points and corresponding uses thereof
#60Miniaturized relay and corresponding uses
#61Gas pressure switch
#62Pressure sensor for contactless pressure measurement, micromechanical pressure switch, and micromechanical pressure change sensor