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7559245 |
Vacuum gauge and refrigeration system service tool, and methods of using the same
A vacuum gauge has a scale having a safe zone indicia, a working zone indicia, an indicator to indicate a particular location on the scale, and a pressure sensing mechanism and housing having a...
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7555959 |
Bourdon tube pressure gauge
Bourdon tube pressure gauge able to make a welding margin of a fastening end of a Bourdon tube and an insertion hole of a tube support broader, and able to ruggedly seal and fix the fastening end,...
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7240559 |
Manometer
The invention relates to a manometer with a housing, a connecting piece rigidly connected to the housing, a bourdon tube arranged in the housing, a viewing glass fixed on the housing, and a...
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7165461 |
Pressure gauge having dual function movement plate
A pressure gauge comprising a stem having an inlet at which pressure is sensed. A Bourdon tube is coupled to the stem and is displaceable in response to pressure changes at the inlet. A movement...
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6758097 |
Pressure gauge spring
The pressure gauge spring is a responsive and easy to manufacture gauge for connection to a pressure source. The spring assembly comprises a coiled hollow tube having a first end and a second end...
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6679122 |
Pressure gauge having a dampener mechanism with attachable housing
A dampening apparatus for a pressure gauge in which a housing secured to the amplifier of the pressure gauge encircles the pointer shaft in a close but loose fit relation so as to define a...
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6651507 |
Pressure gauge having a dampener mechanism
Various embodiments are disclosed of dampening apparatus for a pressure gauge in which a short length of sleeve, ferrule, hub or thimble encircles a pointer shaft in a close but loose fit relation...
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6385134 |
Watch
A watch, in particular a dive watch, having a movement ( 16 ) which is arranged in a watch case ( 12 ) and can be used to drive an hour hand ( 3 ) via an hour tube and a minute hand ( 4 ) via a...
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6216541 |
Pressure gauge overpressure safety release
A pressure gauge in which the displacement tip of the Bourdon tube is sealed and secured to a bracket of an amplifier movement by a selected solder composition affording a failure response to an...
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6044712 |
Bourdon-tube pressure gauge
A pressure gauge comprising a body (14) and a pressure sensing member consisting of a resiliently flexible curved tube (12) attached to the body (14) and having a fixed end (16) for communication...
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5955676 |
Connecting arm having a clamping end for use in bourdon gauges
An improved connecting arm for use in a Bourdon gauge is secured between one end of a Bourdon tube and an indicating needle driving mechanism of the Bourdon gauge by welding. The connecting arm is...
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5952579 |
Ultra-high purity Bourdon tube pressure gauge system
A reduced volume socket body and a reduced volume tube are used in a pressure gauge system in semi-conductor fabrication process equipment. The socket body includes an outlet and the tube has an...
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5712429 |
Pressure-responsive instrument with filter
A pressure instrument for connection to a process line including a gland having an interior passageway, a body connected to the gland and having a fluid line extending therethrough in fluid...
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5591918 |
Pressure gauge for semi-conductor processing
A pressure gauge for semiconductor processing that defines an internal flow path from the socket inlet to the displaceable end of the Bourdon tube that is shelf free so as to be self drainable for...
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5581029 |
Measurement system for a pressure gage as well as a process for the fabrication of such a measurement system
In a measurement system for a pressure gage which has a bourdon tube spring as well as a spring support, the bourdon tube spring is made of a metallic material and the spring support is made of a...
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5567883 |
Bourdon tube pressure gauge having a removable cover
In the pressure gauge of the present invention, in order to prevent mounting screws from dropping off when the pressure gauge is not mounted on a fluid pressure equipment, a counterbore 11a for...
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5533414 |
Coupling device for coupling an indicator needle to an actuating unit in a pressure gauge
A coupling device for a pressure gauge includes an upper positioning plate connected spacedly to a lower positioning plate, a sector gear disposed between the lower and upper positioning plates and...
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5357242 |
Air pressure gauge with self contained adjustable alarms
A diver's air tank pressure gauge having audible and visual alarms, an alarm pointer for indicating the pressure at which the alarms will activate, and a crank assembly for changing the position of...
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5311780 |
Oil-filled pressure gauge leak-stoppage device
Disclosed is an oil-filled pressure gauge leak-stoppage device including a rivet-like rubber gasket and a metal gasket respectively mounted on a plane on the peripheral wall of the casing around an...
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5056528 |
Pressure gauge: gelatinous filled bourdon tube
A pressure gauge including a bourdon tube where a substantial portion of the pressure gauge is filled with a silicone gel, gelatinous material, or any other suitable materials.
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5000049 |
Pressure gauge for medical applications
An apparatus for measuring fluid pressure in a passage or tube for use with medical apparatus such as balloon catheters. A diaphragm gauge is provided and includes a case which houses a first...
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4896538 |
Convertible socket for pressure gauge
An improved pressure gauge construction in which the pressure inlet to the Bourdon tube is supplied through a tubular socket having alternate connections for either a low-connected or...
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4891987 |
Magnetic linkage for bourdon tube gauges
A Bourdon tube pressure gauge has a movement amplifying mechanism comprising a pinion of segment shaped permanent bar magnets extending radially and terminating at a circular edge magnetically...
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4876894 |
Pressure guage connection
A pressure guage connection for connecting a pressure sensing device such as a manometer or an electrical pressure detector to a pressurized vessel or conduit is disclosed. The connection element...
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4838090 |
Multicoil bourdon tube type pressure gauge
A multicoil tube type pressure gauge arranged for direct drive of the gauge pointer and for safely handling overpressure in the event of Bourdon tube rupture comprising a casing of round...
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4773271 |
Bourdon gage
According to the present invention, a Bourdon tube and a mechanism adapted to transmit a deformation occurring in the Bourdon tube to an indicator are accommodated within a casing having a window...
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4763516 |
Automatic tire pressure gauge
This invention comprises an automatic, self-metering tire gauge having an air pressure gauge placed in the air flow path between a tire attachment piece and a filler needle valve. The gauge may...
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4737275 |
Resin pressure sensor for water treatment
An improved resin sensor which senses a change in the condition of the resin by forces acting on a receptacle for the resin. The sampling resin is utilized to indicate a change of ion or...
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4702102 |
Direct readout dissolved gas measurement apparatus
Relatively compact apparatus for rapidly and continuously measuring the percentage of dissolved gas in a liquid. In one embodiment thereof, the apparatus includes a gas permeable tube or membrane...
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4690000 |
Direct-acting pressure sensor
A direct-acting pressure sensor capable in the low-pressure range and including a pressure-sensitive assembly constituted by inner and outer concentrically-arranged curved springs anchored at one...
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4646406 |
Welded edge bourdon strip thermometer-manometer
A bourdon tube for gas and liquid-filled thermometers and pressure gauges constructed by edge welding two strips of isoelastic nickel alloy to form a wall to wall low volume bourdon tube that...
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4646574 |
Pressure gauge housing made of synthetic material
A pressure gauge housing (3) made of a synthetic material and having O-ring sealing seat (1) for the spring carrier (42). The housing features a protruding edge (2) which is molded on the front...
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4641533 |
Pressure measuring apparatus
A pressure measuring apparatus especially of aggressive fluids includes a manometer whose casing accommodates a diaphragm separating a first chamber within the casing from a second chamber within...
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4615219 |
Pressure gauge for use with a corrosive fluid medium
A pressure gauge for use with a corrosive fluid containing a sulfide which includes a Bourdon tube made from stainless steel type 316 and having a first or outer hardened layer and a second or...
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4543833 |
Pressure gauge with add-on wrench flats
Custom sized wrench flats of a relatively large dimension are weld attached to a round stock socket of a post-assembled pressure gauge. This enables cost effective pre-assembly of the gauge...
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4542654 |
Bourdon tube construction
A Bourdon tube and its method of manufacture comprised of a displaceable portion having an arcuate extent of between 170 degrees and 190 degrees, with a controlled size opening contained in the...
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4485676 |
Movement support bracket for a pressure gauge
A pressure gauge in which the mechanical movement that drives the pointer from displacement motion of the Bourdon tube is supported by a bracket of Y-shaped configuration. Comprising the bracket is...
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4413529 |
Adjustably keyed pressure gauge construction
A pressure gauge having a rotatably secured Bourdon tube, and a dial plate arcuately displaceable for effecting zero calibration of the gauge includes a rotationally presettable key for registered...
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4413525 |
Bourdon tube construction
Bourdon tubing is constructed from metal strip by roll forming the strip into a desired tubular cross section with the opposed edges abutting longitudinally at a location in the cross section at...
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4384490 |
Pressure gauge construction
A leak-proof joint between a stainless steel gauge case and the brass socket of a pressure gauge includes a stainless steel sleeve brazed to the socket in the area of the case connection for...
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4337664 |
Pressure gauge construction
Method and apparatus for constructing a pressure gauge in which the socket and at least a portion of the movement for driving the pointer are initially formed integral of a molded polymeric plastic...
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4327589 |
Foot pump pressure gauge having an integrated housing and connector
A pressure gauge for a foot pump comprises a housing having a connector portion on an exterior wall thereof which is formed integrally with the housing in a one-piece construction. The connector...
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4291580 |
Manometer body
A manometer body is electroerrosively formed with an arcuate hole having a tubular core with the body of the core being simultaneously formed in the electrical machining operation so that the...
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4240298 |
Motion amplifier for condition responsive gauge instrument
Amplifier apparatus for providing output motion correlated to condition change motion or deflection of a condition responsive element. The amplifier in a preferred embodiment is mounted onto the...
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4211000 |
Device for producing a spring manometer measuring system
A spring manometer measuring system that includes a deviation detector spring in the manometer connected to an indicator by a tie rod, and the spring is subjected to a reference pressure for spring...
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4192193 |
Liquid filled pressure gauge
A pressure gauge has a Bourdon tube element and a pointer mechanism supported on an inner support member which is substantially contained inside the case body of the gauge. The inner support member...
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4176558 |
Pressure gauge casing-to-socket construction
The casing wall about the aperture through which the Bourdon tube socket connection is received in a pressure gauge cooperates with at least two contiguous surface areas spaced apart on the socket...
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4168631 |
Amplifier mounting construction for a pressure gauge
The floating amplifier of a pressure gauge is mounted onto the free end of the Bourdon tube at various effective spacings therefrom correlated to offset any residual tip travel of the individual...
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4161123 |
Pressure gauge construction
The Bourdon tube socket of a pressure gauge is constructed of an extruded metal bar having a first as-extruded slot in which to secure the inlet fixed end of a Bourdon tube. The bar also includes a...
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4154116 |
Safety manometer
The front edge (2) of a manometer casing (1) is curved inwardly and secures the window shield (3), located in a sealing ring (5), against being pushed out upon superatmospheric pressure in the...
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