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9016133 Pressure sensor with pressure-actuated switch  
Various embodiments relate to a pressure sensor and related methods of manufacturing and use. A pressure sensor may include an electrical contact included in a flexible membrane that deflects in...
7025175 Vent mechanism  
An vent mechanism comprising an upper housing, a lower housing, a diaphragm comprising a diaphram contact contained between the housings, an upper contact, an insulator insulating the upper...
6633010 Compact, sealed pressure switch  
A pressure switch 1 of this invention comprises a base electrode 2, a terminal 3, a disc 4 and a diaphragm 5. The base electrode 2 has a switching chamber 7 for inserting the contact part 3a of...
6596951 Snap disc pressure switch  
A pressure switch is provided for opening and closing an electrical switch based on a pressure set point. The pressure switch includes a housing having walls defining a fluid chamber adapted to...
6313419 Pressure responsive electrical switch  
A pressure responsive electrical switch (10) has a base (12) formed with a bottom wall (12a) having a top surface (12b) formed with a generally disc seat (12c). A recess (12d) is formed in the...
6262463 Micromachined acceleration activated mechanical switch and electromagnetic sensor  
A micro-sensor having have a flexible monocrystalline structure that is moved by an external force. In one embodiment, one or more pole tips are mounted on the monocrystalline structure. The...
6194678 Pressure switch  
A pressure switch with improved sealing of an airtight chamber, and improved electrical characteristics reducing chattering, increasing response rate, and minimizing the pressure necessary for...
6040536 Pressure responsive switch and method of making same  
A low-cost, easy to manufacture and maintain pressure responsive switch. The switch includes a pressure responsive diaphragm made from latex rubber that is mounted in a housing base. An annular...
6034339 Electrostatically controlled microswitch  
A switch has a housing defining a closed cavity having opposite, first and second walls. A first control electrode is on the first wall. A first contact electrode is on one of the first and second...
5998745 Vacuum detection switch  
A switch detects a vacuum that is created by suctioning air through a port hole in a media support surface. The switch includes a first layer having (i) a first hole therein which is at least...
5818002 Pressure change warning switch  
A pressure switch is illustrated that includes only three piece parts--two dimpled covers and a spacer. By selecting both the type and thickness of cover materials, switching pressure ranges can...
5782867 Diaphragm switch  
A diaphragm switch includes a housing having an interior space and a substrate in the housing supporting an electrical contact. A flexible membrane has opposite first and second surfaces, the...
5627396 Micromachined relay and method of forming the relay  
A bridging member extending across a cavity in a semiconductor substrate (e.g. signal crystal silicon) has successive layers--a masking layer, an electrically conductive layer (e.g. polysilicon)...
5619022 Pneumatic snap action switch  
A miniaturized pneumatic snap action switch includes a glass or metallized ceramic body that has a convoluted metal diaphragm closing the open end with a glass to metal seal. The interior of the...
5604338 Temperature adjusting low pressure sensor  
A temperature compensating low pressure sensor for verifying loss of gas from an inflator of a vehicle restraint safety system. The sensor includes a housing and a pressure diaphragm in...
5519179 Pressure switch  
This invention provides a pressure switch and a method of manufacture thereof, which allow the air vent hole to be formed very small in diameter so that the engine oil can be reliably prevented...
5429387 Low pressure switch/initiator/gas generator  
A single device acts as a pressure switch, gas generated heater, and an igniter. The device has pyrotechnic material such as a combustible gas in an inner chamber. An outer chamber, that is, a...
5422791 Terminal strip for electric switching device  
In the case of a switching element, a pressure-compensation element (20) is inserted in the base body (10) of the terminal strip (11) in a recess so that a pressure compensation is possible...
5367878 Transient energy release microdevices and methods  
A microdevice in the form of an electrical switch. A microdevice for providing switching at a high repetition rate, including a cell divided into two chambers by a bistable movable membrane. A...
5355840 Steam generator controlled by pressure switch  
The steam generator according to the invention consists of a main vessel 1 equipped with heating devices 12 controlled by control devices 13. The water level in the steam generator is kept at an...
5315878 Measuring head for a pressure-measuring device with a pressure sensor for the simultaneous actuation of a switching contact  
A pressure-measuring head for measuring the pressure of a fluid consists of a membrane-like diaphragm (6), which separates a pressure chamber (4) from a reference chamber (7), to which the...
5296747 Diaphragm operated electrical polarity reversing switch  
A reversing switch and more particularly a diaphragm operated electrical polarity reversing switch which has general utility but in the application the reversing switch is disclosed for use in...
5294760 Digital pressure switch and method of fabrication  
A micromachined pressure switch and method of fabrication from silicon wafers using aligned fusion bonding. Pattern etched thermally grown silicon dioxide insulating pads are used to determine the...
5262753 Pyrotechnic controlled electrical switch with conductive foil bridging contact disk  
An electrical switch with pyrotechnic control includes a housing containing a pyrotechnic composition and at least two contacts applicable, for example, to fire an explosive charge in a military...
5225643 Differential pressure switch for stored gas pressure vessel  
Two electrically conductive diaphragms which are disposed in generally parallel relation and are symmetrical mirror images of each other are joined to a non-conductive ring. The diaphragms are...
5136278 Compact and lightweight pneumatic pressure detector for fire detection with integrity switch  
A pneumatic pressure detector for use in an overheat or fire alarm system utilizes a known capillary type sensor tube which has absorbed in it a gas. Overheat or fire condition causes the gas to...
5130503 Pressure wave switch having improved contact structure and pressure equilization  
An improved pressure switch of the pulse or pressure wave sensitive type includes a switch housing with an internal diaphragm chamber. A relief vent with a fixed orifice disk is provided in the...
5101549 Method for making pressure responsive switch  
A pressure responsive switch having upper and lower contact assemblies with a snap acting member and an electrically conductive member sandwiched therebetween. The assemblies each include an...
5089671 Underwater zoom switch  
Conductive pads are disposed in a housing which consists of a degassed, non-compressible, electrically insulating fluid. One of the pads is mounted on the underside of a push-button, and the...
5087800 High frequency, large current, switch including a pressure-actuated current-carrying extensible bellows element  
The invention concerns an on-off switch (1) for high-frequency currents. This switch (1) comprises a housing (2) made of an electrically non-conducting plastic and sealed at both its upper and its...
5073124 Electrical interconnection system utilizing fluid pressure deformed tubular contact  
An electrical interconnection is provided between a tubular element (10) formed of a thin walled plastic material made conductive (16) and a further contact (18,56) by fluid pressure driving the...
5049708 Normally closed pressure responsive switch  
A normally closed pressure responsive switch has upper and lower housings attached to one another with an electrically conductive snap acting disc placed therebetween. The lower housing includes a...
5004876 Pressure responsive switch particularly adaptable for operation as a normally open or a normally closed switch  
A pressure responsive switch having upper and lower contact assemblies with a snap acting member and an electrically conductive member sandwiched therebetween. The assemblies each include an...
4978821 Reverse flow prevention device for combustion apparatus  
A reverse flow prevention device for combustion apparatuses control operated by electrical power, and which is provided with a combustion gas discharge tube for discharging the combustion process...
4977413 Ink remain detector having a flexible member and a liquid injection recording apparatus utilizing the detector  
A liquid injection recording apparatus having a recording head for injecting ink toward a recording medium to thereby effect recording, an ink tank storing therein ink to be supplied to the...
4973804 Low profile inertia switch  
A diaphragm-type inertia switch for sensing deceleration places the inertial mass in the chamber that contains the contacts. The other chamber has a thin concave-convex shape that gives the switch...
4965415 Microengineered diaphragm pressure switch  
A microengineered pressure actuated switch includes a domed diaphragm having a snap-action response between defined states (d1, d5) of the diaphragm. This response is to an applied pressure...
4931601 Pressure switch having internal vent chamber  
Layers of a thin, electrically insulating material are bonded together to form a switch. The bottom layer of the switch has electrically conductive areas aligned with openings through a second...
4902861 Inertia switch  
An inertia switch for a supplemental inflatable restraint system. The switch comprises a casing that is divided into two chambers by an axially movable diaphragm. The diaphragm carries an...
4894639 Pressure switch for monitoring tire pressure, particularly of motor vehicle tires  
A pressure switch for monitoring a tire pressure of a motor vehicle tire is fastened to a wheel rim and is actuated by the inflating pressure in the tire. The pressure switch comprises a reference...
4892985 Vacuum responsive multicontact switch  
A multicontact vacuum responsive switch includes a housing divided into first and second chambers by a diaphragm. The first chamber is connected to a vacuum source while the second chamber...
4890090 Pressure alarm system for motor vehicle tires  
A pressure sensitive electrical switch consists of a housing in which two pressure chambers are formed. The pressure chambers are separated by a flexible diaphragm. The flexible diaphragm is made...
4871887 Fluid-actuated pressure switch for an automatic transmission  
A fluid-actuated pressure switch for a four-speed automatic transmission system having a diaphragm to prevent fluid contamination of the electrical switch contacts and features a leakage path...
4816627 Fluid damped acceleration sensor  
An acceleration sensor for an automotive inflatable occupant restraint system employs a rolling diaphragm to divide a housing into two chambers in fluid communication through orifices across the...
4783993 Tire pressure sensor for motor vehicles  
A tire pressure sensor for motor vehicles comprises a pressure switch which is actuated by the tire pressure for monitoring the tire pressure. The pressure switch has a reference pressure chamber...
4778963 Two-threshold changeover pressure switch  
The invention relates to a pressure switch comprising an insulating housing fitted with contact tabs and receiving moving contact members, a conductive washer, and a membrane subjected to...
4767898 Pressure responsive switch with an air filter  
A pressure switch comprising a housing, a diaphragm that divides the inside of the housing into a pressure chamber and an atmospheric chamber, a switch portion mounted in the atmospheric chamber,...
4758695 Automotive transmission control system and improved longevity therefor  
An automotive transmission control is shown having pressure switches to sense the state of actuation of solenoid valves to provide logic signals to a microprocessor type of transmission control....
4755800 Window security device  
A window security device which operates on differential gas pressure theory to trigger an alarm upon pressure equalization. A plug which completes the electric activator circuit includes biasing...
4737660 Trimmable microminiature force-sensitive switch  
A trimmable microminiature force-sensitive switching device for detecting the state of external conditions, such as pressure, acceleration and temperature, is disclosed. The device includes a...

Matches 1 - 50 out of 171 1 2 3 4 >