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6736012 |
Safety device for use as overpressure protection for a trapped volume space
The invention is a safety device for a trapped volume space for use as overpressure protection made of a housing forming a chamber within a trapped volume space having a incompressible fluid, a...
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6734800 |
Atmospheric low pressure alarm system
A device used to alert an individual of the presense of low atmospheric pressure. This is accomplished through the use of an aeronoid barometer, and an audio/visual alarm. The counterclockwise...
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6718827 |
Center-mount capacitive sensor with overload protection
A capacitive sensor includes an elastic member extending about a central axis, having a central region, a peripheral region, a first side, and a second side. An overpressure stop member has an...
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6543294 |
Sealed pressure indicator
A pressure indicator according to the present invention monitors the pressure of the fluid in a vessel. One embodiment of the present invention comprises a closed pressurized gas volume behind a...
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6318181 |
Multi-channel pressure sensor controller
In a multi-channel pressure sensor controller, measured pressure signals from a plurality of pressure sensors to each of which a channel number is assigned are subjected to selection at a...
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5760693 |
Vacuum apparatus for semiconductor device
A vacuum controlling apparatus is provided. The vacuum level of a vacuum chamber can be accurately maintained by measuring and controlling the vacuum level of the vacuum chamber by using six...
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5731523 |
Hose fatigue indicator
A hose fatigue indicator including a hose fitting defining an opening. A fracturable diaphragm is positioned adjacent the opening. The diaphragm is in communication with fluid flowing through the...
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5437188 |
Tell tale device for a pressure vessel
A post activation device to indicate that pressure the existed within a pressure vessel just prior to the opening of the pressure vessel and the resulting loss of pressurization, having a...
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4932264 |
Microballoon tagged materials
A technique for impregnating a fluid so that the impregnated fluid retains information about the highest pressure that has ever been exerted on it. This technique is particularly useful where...
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4881400 |
Continuous measuring diaphragm pressure gage
A mechanical pressure gage for measuring the change in fluid pressure resing from an explosive charge and the like. The sealed gage housing includes a plate member having a recess in which a...
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4776438 |
Brake adjustment indicator
A brake adjustment indicator adapted to be mounted to a mounting bracket which supports a brake air chamber on a surface of the mounting bracket opposite the brake air chamber with the brake air...
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4748845 |
Tire pressure gauge
A tire pressure gauge located within a self-contained enclosure having a changeable numeric display at its exterior. An air inlet on the enclosure is utilized to establish pneumatic communication...
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4716759 |
Method of detecting cylinder pressure and cylinder pressure detection device in internal combustion engine
A method of detecting cylinder pressure and a cylinder pressure detection device in an internal combustion engine. Two reference values are set and then adjusted so that the maximum pressure value...
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4715231 |
Maximum pressure indicator
A maximum pressure indicator for indicating maximum pressure of a fluid system employs a deformable disc which is bonded to a main plug. The plug has a cavity which is sealed by the disc so that a...
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4711119 |
Peak combustion pressure signal processing circuit with diagnostic capability
A peak combustion pressure signal processing circuit for an internal combustion engine having a plurality of combustion chambers with combustion pressure sensors includes an operational amplifier...
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4453411 |
Pressure memory device
A pressure memory device is used in conjunction with a pressure gauge to measure the highest or lowest liquid pressure in a system and to retain that measurement. The device comprises a manifold...
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4280362 |
Peak reading bottom hole pressure instrument
A simplified downhole pressure reading instrument. It has a cylindrical body which holds a charge of gas at one end. There is a concentric cylindrical element which slides longitudinally inside the...
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4279214 |
Brake wear indicator
There is disclosed a brake wear indicator which is suited for the retrofit installation on vehicle pneumatic brakes. The wear indicator comprises a sleeve that loosely fits over the push rod of the...
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4254731 |
Filter restriction indicator
An indicator device for indicating when a prechosen pressure difference has been exceeded comprises a casing having two ports separated by a resilient diaphragm with an aperture therein, and a...
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4208048 |
Punching bag including power gauge
Apparatus for use in developing boxing technique to indicate punching power during work-outs with practice equipment, includes a practice bag or the like having a punch-receiving area including...
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4198869 |
Apparatus for permanently indicating maximum gas pressure in a system
An improved apparatus for measuring the maximum pressure of gas in a system by use of the Brinell principle. In preferred form, the apparatus of the invention is mounted in a plug fitting in the...
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4196690 |
Device for indicating the maximum reading of a measuring instrument
A device for indicating the maximum reading of a measuring instrument of the type having a needle turnable over a dial marked with a graduated scale extending for more than 360° includes an...
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4184376 |
Pressure sensitive indicating device
A device (10) for metering discrete lengths of filament utilized in a flexible filament vegetation cutting device is disclosed. The line metering device (10) is preferably used in flexible filament...
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4157043 |
Maximum pressure manometer
A manometer for recording maximum pressures from a liquid supply comprising, a closed air chamber, an elongated channel communicating with the supply adjacent a lower end of the channel and...
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4111057 |
Dual-indicator manometer for an electromedical device
A dual-indicator manometer for an automatic sphygmomanometer, composed of two pressure indicators each mounted on a shaft and arranged to be individually blocked or released by the armature of an...
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4108428 |
Portable punch power gage
Apparatus for use in developing boxing technique to indicate punching power during work-outs with practice equipment, includes a practice bag or the like having a punch-receiving area including...
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4060050 |
Fill indicator for a vacuum cleaner dust collector
An indicator device mounted on a vacuum cleaner housing which is under the influence of the pressure differnce between the inlet and outlet of a dust or dirt collector unit of the vacuum cleaner....
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3999430 |
Dial tire pressure gage
A dial pressure gage having a back-check valve with hand-operated pressure-relief control for maintaining readout on the gage for as long as desired combined with a length of flexible hose and...
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3983748 |
Pickup for measuring the maximum pressure in internal combustion engine cylinder
According to the invention a pickup for measuring the maximum pressure in the internal combustion engine cylinder comprises a spring-loaded reversing valve mounted in a housing and being in contact...
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3943768 |
Method and apparatus for measuring peak pressure in fluids
The pressure of a fluid is applied to an elongated resiliently yieldable element in direction transverse to the elongation thereof, so as to obtain a yielding of the element which is proportional...
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3901217 |
Sphygmomanometer and gauge therefor
A sphygmomanometer is self-donning by the user and may be conveniently operated by the user for taking his blood pressure. In lieu of the typical sphygmomanometer arm band, a sleeve is slipped on...
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3779080 |
GAUGE RECORDING MAXIMUM PRESSURE
Device for visual indication of a maximum fluid pressure condition reached during a given interval of time. Useful for the in-flight recording of fluid pressure condition e.g., in the reduction...
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3715925 |
MINIATURE RECORDING ALTIMETER
A recording altimeter is provided and particularly a miniaturized, compact altimeter adapted for use in flying amusement devices. The altimeter includes a pressure-sensitive system having gauge...
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3706229 |
PRESSURE GAGE FOR RECORDING PEAK PRESSURES
A pressure gage for recording peak pressures including a pair of pressure sponsive flexible diaphragms fixed in a spaced, opposed relationship. One of the diaphragms includes a surface coated with...
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3696668 |
COMBINED AIR PRESSURE AND THREAD DEPTH GAUGE FOR PNEUMATIC TIRES
The conventional pneumatic pressure gauge and the conventional tire depth gauge are combined into a single implement, the single indicator slide being A. adapted to be pulled out manually and then...
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3675487 |
SAFETY MECHANISM FOR PRESSURE GAUGE
Apparatus for limiting the maximum pressure to which a pressure gauge can be subjected. A spring biased differential pressure valve is maintained in a normally opened position in the inlet fitting...
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3463010 |
INDICATOR ADAPTOR AND METHOD FOR OPERATING IT
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3422791 |
INDICATING APPARATUS
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3245259 |
Depth gauge plug
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3233462 |
Device for the indication of extreme values of pulsating hydraulic pressures
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3181367 |
High pressure barometer
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3134260 |
Pneumatic measuring apparatus
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3084552 |
Pressure indicating device
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3036466 |
Maximum pointer instruments
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2924100 |
Tire gauges
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RE04775 |
Title is not available
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0994877 |
Title is not available
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