| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073732000 | Bourdon | 17 |
| 20110138922 | SCUBA DIVING AIR TANK GAUGE - A scuba diving air tank gauge, wherein a casing made of plastic material has a transparent cover, and a radial inlet fitting integral with the casing and also made of plastic material, and houses a Bourdon gauge device, a closed metal tube of which is wound into a coil and has a straight inlet end portion that engages a conduit in the radial inlet fitting in sliding manner; the conduit having a cavity housing at least one O-ring; and the straight inlet end portion engaging the conduit and the cavity in axially sliding manner, and extending in fluidtight manner through the O-ring. | 06-16-2011 |
| 20110203382 | GAUGE FOR PRESSURE MEASURING DEVICE - A gauge for a pressure measuring device, the gauge includes a gauge body disposed at the front of the pressure measuring device. The gauge body having a graduated circle, a range display window formed on a graduated circle and a pointer to indicate a scale on the graduated circle corresponding to a measured pressure by the pressure measuring device. A base plate disposed at the rear of the gauge main body and viewed through the range display window, and first and second gauge fans rotatably disposed on the base plate to set the pressure range of an upper limit value and a lower limit value on the graduated circle. | 08-25-2011 |
| 20120312100 | UNROLLING TUBE PRESSURE SENSOR - A pressure measuring device includes a partially coiled tube having a closed end and an opposite open end. The closed end is rolled and set into a coiled configuration. The device also includes a partially coiled tube supporting structure having a pressure indicating scale. The supporting structure holds the partially coiled tube such that the open end of the tube is in communication with a fluid whose pressure is to be measured. Pressure applied by the fluid causes the tube to unroll and the closed end of the tube to be visibly displaced relative to the pressure indicating scale by a distance related to the pressure applied by the fluid. | 12-13-2012 |
| 20140216164 | MANOMETER - A manometer comprises a manometer body with an indicating scale with graduated markings of pressure units and a safety vent, a plunger with a annular groove and a tinted O-ring a cap mount, a primary box spring and an auxiliary box spring. By means of the tinted O-ring and the indicating scale with graduated markings of pressure units, the manometer innovatively functions as indication of air pressure measured. By means of the primary box spring and auxiliary box spring, the manometer precisely measures overall air pressure in combination of coarse air pressure variation responded by the primary box spring and fine air pressure variation responded by the auxiliary box spring. By means of the safety vent disposed on the peripheral of manometer body and the tinted O-ring on the plunger, the manometer provides a safety proactive means for input compressed air. | 08-07-2014 |
| 20140318260 | PRESSURE INDICATION DEVICE OF INFLATION MACHINE WITH SAFETY PRESSURE RELIEF - A pressure indication device is provided to connect to an inflation mechanism of an inflation machine. The pressure indication device includes a hollow tubular body in which a push bock is received in a manner of being movable by a pressure conducted into the hollow tubular body and connected to a linearly movable plate and biased by an elastic element. The hollow tubular body has a tubular wall forming a pressure relief hole at a preset position corresponding to a maximum allowable pressure level. A scale bar having graduations is provided along a moving path of the plate. The elastic force of compression of the elastic element serves as a reaction force (restoration and returning force) for the linear movement of the plate. A pressure conducted into the hollow tubular body from the inflation machine drives the plate to move and thus indicates the pressure level. | 10-30-2014 |
| 073733000 | With electrical readout | 3 |
| 20100162822 | Heating and Air Conditioning Service Gauge - A service gauge for determining refrigerant pressure and the saturated vapor equivalent temperature, or other parameters, for a refrigerant in an HVAC system. In one embodiment, the service gauge employs a bourdon tube with at least one attached strain gauge to sense the refrigerant pressure and produce an electronic pressure signal. In another embodiment, a magnet and rotary position sensor produces an electronic signal proportional to the refrigerant pressure. The electronic pressure signal from the output of the strain gauge or the rotary position sensor is connected to a microprocessor, which calculates and displays the refrigerant pressure, the saturated vapor equivalent temperature for a variety of refrigerants, produces instantaneous and time lapsed representations of those parameters, and other parameters of the refrigerant. | 07-01-2010 |
| 20160109312 | PRESSURE GAUGE WITH DIGITAL DISPLAY - A measuring instrument for use with a gas compression system includes a housing having a face, a rear panel, and a wall extending between the rear panel and the face to define an instrument space. A curved tube includes a first end connected to a source of pressure. The curved tube is disposed within the instrument space. An indicator needle is coupled to a second end of the curved tube and is movable with respect to the face in response to changes in pressure from the pressure source. The needle and the face cooperate to indicate a measured pressure of the source of pressure. An electronic display is disposed within the instrument space and is visible through an aperture formed in the face. The electronic display is operable to display data unrelated to the pressure of the source of pressure. | 04-21-2016 |
| 073734000 | Resistive | 1 |
| 20080245155 | METHOD AND APPARATUS TO DIGITIZE PRESSURE GAUGE INFORMATION - 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. | 10-09-2008 |
| 073738000 | Safety pressure release casing | 1 |
| 20090044631 | Illuminated Liquid Filled Gauge - A liquid filled gauge for measuring, for example, pressure, includes a gauge housing, a lens cap attached to the housing, a gauge diagnostic element contained at least partially within the housing, a dial that includes a translucent portion and a non-translucent portion and an electroluminescent device positioned adjacent the dial for transmitting light through said translucent portion and illuminating said dial. The dial is operatively connected to the gauge diagnostic element. A protective cover may be provided for sealing the electroluminescent device and protecting the electroluminescent device from the liquid which fills the gauge housing. | 02-19-2009 |
| 073741000 | Bourdon tube and mounting | 8 |
| 20080271540 | Pressure Gauge - 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. | 11-06-2008 |
| 20090183574 | SENSING APPARATUS OF BOURDON PRESSURE GAUGE - 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. | 07-23-2009 |
| 20100064817 | BOURDON TUBE PRESSURE GAUGE - 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. | 03-18-2010 |
| 20100180689 | BOURDON TUBE PRESSURE GAUGE - 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. | 07-22-2010 |
| 20110030480 | Annular Bourdon Tube Gauge Assembly - 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. | 02-10-2011 |
| 20130112003 | PRESSURE GAUGE - 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. | 05-09-2013 |
| 20140360278 | Spiral Concentrically Wound Bourdon Tube - 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. | 12-11-2014 |
| 073742000 | Helical Bourdon tube | 1 |
| 20140238143 | SYSTEM, METHOD, AND DEVICE FOR SENSING PRESSURE OF A FLUID - A pressure sensor for sensing a pressure of a fluid includes a Bourdon tube that has a helical segment and an anvil. A portion of the anvil is positioned within the helical segment. The sensor also includes a dielectric material positioned between the portion of the anvil and the helical segment. The anvil, the dielectric material, and the helical segment form a variable capacitor. A capacitance of the variable capacitor changes based on a pressure applied to the Bourdon tube. | 08-28-2014 |
