Abstract: A pressure measurement device is provided. The pressure measurement device includes a pressure gauge having a hermetically sealed cavity. The cavity is filled with pressure transferring media that includes a first material and a compensator material. The first material has a first coefficient of thermal expansion and the compensator material has a second coefficient of thermal expansion that is lower than the first coefficient of thermal expansion. The pressure measurement device includes a pressure reading mechanism coupled to the pressure gauge and operative to convert a displacement of the pressure gauge to a pressure measurement reading.

Abstract: An orthotopic prosthesis (1) of artificial bladder includes a balloon (600), two hollow elements (300) for the forced fitting of ureters (6,6?) and a frustoconical element (602) for the connection of the urethra (8) to the prosthesis in the absence of stitches.

Abstract: In one embodiment, the present invention provides a pressure sensor that provides improved reliability, reduced cost, and improved performance over currently available pressure sensor designs. The pressure sensor may include a spiral concentrically wound tube coil having a sealed end and an open end, wherein the stem or open end of the tube is oriented so as to be parallel with a plane of the coil windings. In one embodiment, the spiral concentrically wound tube coil may be a Bourdon tube.

Abstract: In one embodiment, the present invention provides a pressure sensor that provides improved reliability, reduced cost, and improved performance over currently available pressure sensor designs. The pressure sensor may include a spiral concentrically wound tube coil having a sealed end and an open end, wherein the stem or open end of the tube is oriented so as to be parallel with a plane of the coil windings. In one embodiment, the spiral concentrically wound tube coil may be a Bourdon tube.

Abstract: The present disclosure provides for systems and methods for fabricating measuring devices, e.g., a pressure gauge, thermometer or the like. More particularly, the present disclosure provides for systems and methods for fabricating measuring device assemblies having zero/span adjustable linkage movements (e.g., zero/span adjustable four-bar linkage movements). In general, the present disclosure provides for measuring device assemblies having zero/span adjustable linkage movements, wherein the zero/span adjustable linkage movements do not adversely affect linearity of the measuring device assemblies, and wherein the measuring device assemblies are rugged and able to withstand certain extreme shock and/or vibration conditions.

Abstract: A pressure gauge has an indicator needle and a scale plate. A preset pressure indicating member extending along a pressure scale in a circular arc pattern is slidably attached to a front wall of a case, and provided with a first display section. An opaque shield portion provided with a second display section at one end thereof is provided to a transparent cover rotatably attached to the front wall. The transparent cover drives the preset pressure indicating member to set a preset pressure range between the first display section and the second display section which is observable from the outside through the transparent cover.

Abstract: An annular bourdon tube gauge assembly comprises a bourdon tube member, a first flange element, a second flange element and a pressure level indicator, and is adapted to be mounted externally circumferentially of a portion of a body member that is adapted to confining a pressurized fluid, such as a pressure regulator. The bourdon tube is axially disposed between the first and second flange elements, and has a spiral shape, a radially inner end and a radially outer end. The radially inner end is fixed with respect to the portion of the body member. The radially outer end is free to move circumferentially responsive to changes in the fluid pressure entering a pressure receiving port at the radially inner end. The pressure level indicator is mounted to and moveable with the radially outer end, and is viewable from a position located laterally outward of the first and second flange elements.

Abstract: A bourdon tube pressure gauge includes a joint which is made of resin and attached to a pressure container, and a bourdon tube which is made of metal and provided with a base end part fixed to the joint. The joint is formed with a fixing hole to which the base end part of the bourdon tube is inserted and adhesively fixed, and a side face of the fixing hole is formed with a recessed part which is recessed in a flattened direction of the base end part of the bourdon tube that is inserted into the fixing hole. Further, the recessed part is formed toward a depth side of the fixing hole and at least a part of the recessed part which is formed on an inner side of the fixing hole is formed wider in the flattened direction than an opening part of the fixing hole which is an insertion port of the bourdon tube.

Abstract: A gas cylinder residual gas volume indicator includes a carrier having a weight-receiving part and a pressure-applying part, a hydraulic cylinder having a cylinder body holding a hydraulic fluid and a cylinder piston stopped against the pressure-applying part of the carrier and movable with the pressure-applying part relative to the cylinder body to force the hydraulic fluid out of the cylinder body according to the weight received from a gas cylinder by the weight-receiving part, a hydraulic mechanical type meter having an index rotatable by a hydraulic fluid, and an oil pipe for guiding the hydraulic fluid out of the hydraulic cylinder into the meter to rotate the index.

Abstract: An annular bourdon tube gauge assembly comprises a bourdon tube member, a first flange element, a second flange element and a pressure level indicator, and is adapted to be mounted externally circumferentially of a portion of a body member that is adapted to confining a pressurized fluid, such as a pressure regulator. The bourdon tube is axially disposed between the first and second flange elements, and has a spiral shape, a radially inner end and a radially outer end. The radially inner end is fixed with respect to the portion of the body member. The radially outer end is free to move circumferentially responsive to changes in the fluid pressure entering a pressure receiving port at the radially inner end. The pressure level indicator is mounted to and moveable with the radially outer end, and is viewable from a position located laterally outward of the first and second flange elements.

Abstract: A bourdon tube pressure gauge includes a joint which is made of resin and attached to a pressure container, and a bourdon tube which is made of metal and provided with a base end part fixed to the joint. The joint is formed with a fixing hole to which the base end part of the bourdon tube is inserted and adhesively fixed, and a side face of the fixing hole is formed with a recessed part which is recessed in a flattened direction of the base end part of the bourdon tube that is inserted into the fixing hole. Further, the recessed part is formed toward a depth side of the fixing hole and at least a part of the recessed part which is formed on an inner side of the fixing hole is formed wider in the flattened direction than an opening part of the fixing hole which is an insertion port of the bourdon tube.

Abstract: The bourdon tube pressure gauge includes: a joint which is made of the resin and is attached to a pressure container; and a bourdon tube which is made of metal and has a rear end fixed to the joint. The joint comprises a fixation hole into which the rear end of the bourdon tube is inserted to be fixed by bonding, and an inside of the fixation hole is more widened than an opening of the fixation hole which serves as an insertion port for the bourdon tube.

Abstract: The bourdon tube pressure gauge includes: a joint which is made of the resin and is attached to a pressure container; and a bourdon tube which is made of metal and has a rear end fixed to the joint. The joint comprises a fixation hole into which the rear end of the bourdon tube is inserted to be fixed by bonding, and an inside of the fixation hole is more widened than an opening of the fixation hole which serves as an insertion port for the bourdon tube.

Abstract: A sensing apparatus of a Broudon pressure gauge is disclosed, which comprises a magnet which has a N pole and a S pole at one end between both ends of the shaft which its connected with the displacement gear and rotates; a sensing unit which is provided in the body at a portion corresponding to the magnet and is disposed on at least three portions in circular directions and includes an AMR sensor or hall sensor for sensing the rotation value of the magnet; and a display control unit which receives a sine signal value and a cosine signal value among phase signal values from the sensors of the sensing unit and corrects the phase values and outputs to the LCD.

Abstract: 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 pressure sensing port accessible for fluid connection to the refrigeration system to receive fluid for sensing. The indicia are distinctly coded for user differentiation. The scale may include a leak indicating zone indicia and a non-working zone indicia The safe zone indicia may represent 0 to 500 microns, the working zone indicia 500 to 2000 microns, the leak indicating zone indicia 2000 to 25,400 microns, and the non-working zone indicia 25,400 to 30,000 microns. Service tool combination includes body assembly, shaft assembly and gauge in direct sealed connection with a fitting for releasable sealed fluid connection. There are methods using the combination. Tool has gripper with cavity to receive valve core pin. Gripper has base to prevent pin from pulling gripper from tool.

Abstract: 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, that is, a Bourdon tube pressure gauge having a tube support provided with a fastening insertion hole in which a fastening end of a helical Bourdon tube is inserted, wherein the tube support has a weld metal injection hole reaching the fastening insertion hole in a direction perpendicular to a depth direction of the fastening insertion hole and at a position at the middle of the depth and a weld metal part formed by injecting the weld metal into the weld metal injection hole in a state where the fastening end is inserted in the fastening insertion hole.

Abstract: A pressure gauge includes a core, a first dial, a first hand, a second dial, a second hand and a gear system. The core includes a body, a joint connected to the body and a Bourdon tube connected to the body. The first dial is connected to a side of the core for showing a large range of pressure. The first hand is located on the first dial. The second dial is connected to an opposite side of the core for showing a small range of pressure. The second hand is located on the second dial. The gear system connects the Bourdon tube to the first and second hands.

Abstract: This invention uses a flexible gauge to digitize an analogue signal from a mechanical gauge. In particular, this invention uses a flexible gauge to digitize an analogue signal from a mechanical pressure gauge. More particularly, this invention uses a flexible gauge to digitize an a analogue signal from a mechanical pressure gauge that uses a Bourdon tube.

Abstract: 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 pointer, which can rotate on the inside of the viewing glass and which is engaged with a free end of the bourdon tube, wherein the housing has on its top side a connecting piece that is bent inwardly for connecting to the viewing glass. To simplify the assembly, several cutouts distributed over the periphery are arranged in the connecting piece of the housing for engagement of an assembly tool, wherein the housing is connected to the connecting piece with a positive fit.

Abstract: 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 comprising a movement plate conducts displacement of the Bourdon tube to a pointer shaft. A circuit board comprising an inductor is fixed relative to the stem. The movement plate comprises an integral flag connecting the movement to the Bourdon tube and an integral inductive target operatively positioned relative to the inductor.

Abstract: 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 with a body portion therebetween, the hollow tube adapted to produce a displacement of the second end in response to a change in said pressure source to which said first end is connected. The second end of the body portion is sealed. The body portion of the spring assembly has a first longitudinal portion and a second longitudinal portion extending from proximate to said first longitudinal portion to said second end and substantially uniformly compressed along the second longitudinal portion to reduce volume thereby. A transition area is disposed between said first end and said first longitudinal portion of said hollow tube, and is compressed so as to form a continuous longitudinally extending ridge along said transition area.

Abstract: 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 controlled clearance packed with a high viscosity dampening agent such that it serves to decelerate and cushion any sudden shock or pulsation force that would otherwise be transmitted from the pointer shaft to a pointer registering values of pressure of fluid pressure being monitored.

Abstract: 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 defining a clearances packed with a high viscosity dampening agent such that it serves to decelerate and cushion any sudden shock or pulsation force that would otherwise be transmitted from the pointer shaft to a pointer registering values of pressure of fluid pressure being monitored.

Abstract: 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 minute tube in a fashion sweeping over a dial (1). Also present is a pressure detecting device for detecting the ambient pressure outside the watch case (12) and a display for representing the detected pressure values. There is arranged in the watch case (12) a mechanical pressure transducer to which the ambient pressure outside the watch case (12) can be applied and by means of which a mechanical depth measurement mechanism (17) of a mechanical display can be driven.

Abstract: 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 encountered overpressure at a pressure value lower than the burst pressure of the Bourdon tube. Overpressure causes a fracture in the solder to be incurred enabling release of the overpressure while a throttle plug situated in the inlet path to the Bourdon tube severely restricts continuing gas flow to the fracture site. As a consequence, released flow from the solder fracture will be at a pressure insufficient to potentially cause explosion of the gauge case/lens to occur.

Abstract: Dampening apparatus for a pressure gauge in which a short length of sleeve, ferrule, hub or thimble encircles the pointer shaft in a close but loose fit relation and is packed with a high viscosity fluid such that it will serve to decelerate and cushion any sudden shock or pulsation force that would otherwise be transmitted to the pointer shaft.

Abstract: 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 with a fluid to enable pressure measurement, and a closed opposite end (18) freely movable by the fluid pressure relative to the body (14) and controlling a pressure indicator (20). The gauge comprises at least one stop (36) arranged between the body (14) and the tube (12) for restricting the resiliency of the tube (12).

Abstract: 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 provided with a clamping end which can be firmly engaged with a Bourdon tube and the other end engaged with the driving mechanism first manually so that Bourdon gauges so assembled then can be automatically processed by an automatic welding machine in a consecutive order without further manual interference, increasing the speed and safety of welding assembly in practical production of Bourdon gauges.

Abstract: 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 end connected to the outlet. The outlet is a shaped, weld prep formed on the socket body having an inner surface. A continuous seat is formed on the outlet and includes a seat thickness. The tube has an inner wall and an outer wall defining a wall thickness which is substantially the same as the seat thickness. The end of the tube is engaged with the seat so that the inner wall of the tube and the inner surface of the outlet are substantially aligned to form a crevice free tube-to-socket connection.

Abstract: 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 communication with the interior passageway of the gland, a pressure-responsive instrument connected to said fluid line, and a filter disposed in the interior passageway of the gland so as to prevent particles from passing from the instrument to the process line. The body has a pilot formed at one end of the body so as to be received within an end of the gland. The body is welded to the gland rearwardly of the pilot. The filter is positioned within the interior passageway of the gland forward of the pilot of the body. The pressure-responsive instrument is a bourdon tube having an interior in fluid communication with the fluid line.

Abstract: 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 internal cleansing and purging whereby to avoid any trapping of contaminants that could subsequently have a deleterious affect on the process.

Abstract: 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 polymer plastic. The connection between the bourdon tube spring and the spring support is made by means of a metallic transition element which has a recess into which the fixed end of the bourdon tube spring is glued or soldered, and which has engagement means formed on it which are in form-fitting engagement with the spring support. The compound assembly comprising the transition element and the spring support combines the cost advantage of the fabrication of the spring support from plastic with the mechanical advantages and antileak advantages of a metal-to-metal connection for the connection of the bourdon tube spring to the spring support.

Abstract: 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 receiving a head 36a of a mounting screw 36 is formed on a front end of a screw insertion hole 11 on a case 2 of the pressure gauge 1, and with the mounting screw 36 passed through the screw insertion hole 11, a front cover 4 for covering the counterbore 11a is removably mounted on the front surface of the case 2.

Abstract: 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 mounted rotatably thereto, an adjustment plate mounted adjustably on a top side of the sector gear, a push rod with a first end adapted to be in force-transmitting relationship with an actuating unit of a pressure gauge and a second end connected to the adjustment plate, a pinion meshing with the sector gear and to be mounted with an indicator needle of the pressure gauge thereon, a support plate mounted on a bottom side of the lower positioning plate for supporting distal bottom ends of axles of the sector gear and the pinion thereon, and a spiral spring for biasing the pinion to rotate the indicator needle to a starting position.

Abstract: 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 the alarm pointer. The pressure gauge dial has a cutout for limiting the travel of the alarm pointer between acceptable high and low pressure limits. When the air tank pressure equals a preset alarm pressure, an electrical circuit is completed which activates the alarms. The diver can then turn off the alarms by resetting the alarm indicator to a lower pressure setting and continue the dive at a shallower depth.

Abstract: 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 axle hole thereof to seal the gap between the casing and the stem of the gauge, which stem being inserted out of the casing through the axle hole. A plastic gasket is directly molded on a chamfered annular groove on the bottom of the head of each gauge tie screw around its shank to seal the gap between the casing and the respective tie screw.

Abstract: 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.

Abstract: 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 back-connected gauge arrangement. An adaptor is provided for threaded mounting one end into a selected of said socket connections while the other end extends outward of the gauge housing with a thread of choice for connecting to a fluid pressure source. A threaded plug seals the unused socket connection while an interlock secures the installed adaptor against unthreading removal.

Abstract: 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 driven by a pivotally mounted rack segment having an arcuate band of permanent bar magnets arranged in parallel alignment with polar axes extending radially of the rack and transversely of the band. One of the poles of each of the magnets of the band is located along a driving arcuate edge thereof which faces and magnetically drives the circular edge of the pinion by magnetic attraction of opposite poles. The polarity of adjacent magnets on both the pinion and rack segment is reversed providing alternate N and S poles around the pinion circular edge and along the driving edge of the band, respectively. In one form of movement, the rack segment is formed with an opening and the driving arcuate edge faces the opening in which the pinion is positioned for operative magnetic engagement between the band and pinion.

Abstract: 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 constitutes a cylindrical stem designed in one piece with the device carrier, with said cylindrical stem having a ring-type flange at its end. The ring-type flange places an attachment element to the cylindrical stem in an undetachable manner. The attachment element also has a deformation portion which is deformable in the radial direction after the placement onto the cylindrical stem, with a shoulder being formed as a result of the deformation and with the attachment element resting against the ring-type flange via this shoulder. The attachment element can be a clamping nut or a cap screw.

Abstract: 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 configuration defining a planar upright main chamber, with the casing being indented rearwardly adjacent the axial center of the gauge to define a supplemental chamber, a mounting plate that is common to all the working parts of the gauge secured to the gauge casing over the supplemental chamber and mounting cantilever fashion a tubular spool journaling the gauge pointer shaft, a multicoil Bourdon tube encircling the spool having its sealed end secured to the shaft within the supplemental chamber, and a pressure connection fitting in the form of a connection block anchored to the mounting plate and having a pressure cavity to which the Bourdon tube other end is sealingly secured with its bore in communication with the fitting pressure cavity, with the Bourdon tube direct driving the gauge pointer shaft; the working parts of t

Abstract: 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 in one side so that the indicator may be visually observed from the exterior through the window, the casing being further provided in the other side with an inlet communicating with the Bourdon tube and with insertion holes for mounting screws, wherein the mounting screws are threaded through the insertion holes into corresponding threaded holes formed in a mounting surface of an associated fluid handling device, aligning the inlet formed in the casing in communication with the Bourdon tube to a gage port formed in the mounting surface of the fluid handling device.

Abstract: 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 remain attached to the tire at all times, including while air is being added to the tire. The gauge may be adjusted to indicate the pressure in the tire continuously whether or not the tire is being filled with air through the filler needle valve.

Abstract: 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 equilibrium condition of the resin when employed as an indicator for resin regeneration or end of a rinse cycle in a water softening or deionization system. The sampling resin is placed in a receptacle which will confine the expansion in volume of the resin as the resin is acted upon by a sampling or indicator liquid causing the resin to exert a force on the receptacle. The receptacle for the resin allows water to freely flow in and out while entrapping the resin therein. In one embodiment, the container is composed of screened walls and the pressure sensor is a strain gauge which is attached thereto. In another embodiment, the pressure sensor is the container and in the form of a multiapertured Bourdon tube in a fluid compartment.

Abstract: 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 closed at one end having its other end connected to a pressure sensor. The gas permeable tube is mounted on the apparatus housing such that it can be immersed in the liquid to be measured. During the measurement process, if the liquid contains less dissolved gas than the equilibrium quantity at atmospheric pressure, it will absorb gas from within the gas permeable tube thereby changing the internal tube-gas pressure. The percentage of dissolved gas is related to the extent of gas absorption by the liquid and the resulting internal tube-gas pressure after gas absorption is substantially complete.

Abstract: 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 end in a socket to define a pressure region therebetween, within which is disposed an elongated, flexible bladder forming an internal pressure chamber communicating with a fluid input socket. The springs are joined at their free end to form a tip whose travel is indicative of the pressure of fluid applied to the sensor. The bladder initially assumes a curved form conforming to the curvature of the springs; but when subjected to internal pressure by an applied fluid, it seeks to straighten out to an extent determined by the level of pressure.

Abstract: 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 side on the cup-shaped housing (3). The O-ring sealing seat (1) is shaped out of the housing circumference so that it will close flush with the edge (2).

Abstract: 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 exhibits a low ambient temperature effect and improved rangeability over all existing bourdon tubes used for temperature and pressure measurement and control.

Abstract: 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 the casing. The first chamber contains a neutral fluid which transfers the pressure of the aggressive fluid provided in the second chamber and exerting a pressure onto the diaphragm to a mechanical indicator of the manometer for indicating the measured pressure.

Abstract: 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 inner layer having a hardness equal to or less than Rc22. The Bourdon tube is welded to a socket and to a closure member using stainless steel type 316 such that the weld seals the interface between the first and second layers to isolate the hardened outer layer from the corrosive fluid.