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| Number | Title | Issue Date |
| 8176791 | Elastic ceramic body and pressure sensor with an elastic ceramic body An elastic ceramic body and a pressure sensor. The elastic ceramic body comprises: a base body of an elastic ceramic material; and a cover layer, which covers at least one section of a surface of the base body, wherein the cover layer is of a material other than tha... | 05/15/2012 |
| 8146435 | Differential pressure gauge A differential pressure gauge includes a housing, a leaf spring having a magnetic steel, a measuring diaphragm, a helix, a dial, a range adjusting device and a diaphragm cover. The measuring diaphragm is connected with the leaf spring by connectors. The range adjust... | 04/03/2012 |
| 8132464 | Differential pressure transmitter with complimentary dual absolute pressure sensors A process variable transmitter for measuring a pressure of a process fluid includes a process coupling having a first port configured to couple to a first process pressure and a second port configured to couple to a second process pressure. A differential pressure s... | 03/13/2012 |
| 8082797 | Pressure sensor assembly The present disclosure relates to pressure sensors. In one illustrative embodiment, the pressure sensor may include a pressure sensor assembly having pressure ports on opposite sides of the pressure sensor assembly. The pressure sensor may include a protective housi... | 12/27/2011 |
| 8074521 | Enhanced static-dynamic pressure transducer suitable for use in gas turbines and other compressor applications A filter assembly for use with a static-dynamic piezoresistive pressure transducer that measures low amplitude, dynamic pressure perturbations superimposed on top of a high static pressure through the implementation of a low-pass mechanical filter assembly is disclo... | 12/13/2011 |
| 8042400 | Pressure sensor A pressure sensor according to the present invention comprises: a differential pressure diaphragm, which is provided to a center part of a sensor chip; a differential pressure gauge, which is provided to a perimeter edge part of the differential pressure diaphragm a... | 10/25/2011 |
| 8033176 | Device for pressure indication of an inflatible cuff A device that indicates an internal pressure of an inflatable medical cuff. The device includes a membrane movable in response to a difference between an internal pressure of the device and an external pressure. The device includes a movable internal pressure indica... | 10/11/2011 |
| 7997143 | Internally switched multiple range transducer There is disclosed an internally switched multiple range transducer. The transducer employs a plurality of individual pressure sensors or Wheatstone bridges fabricated from semiconductor materials and utilizing piezoresistors. Each sensor is designed to accommodate ... | 08/16/2011 |
| 7980137 | Dual pressure sensor A dual pressure sensor using a reduced number of parts to simplify its structure and having increased ease of assembly and improved air tightness. The dual pressure sensor has an airtight container, two pressure sensor units received in the airtight container so as ... | 07/19/2011 |
| 7930943 | Differential pressure sensor In order to reduce hysteresis and other noise components included in the output signal characteristic of a differential pressure sensor, an elastic reaction member which operates together with a diaphragm provided in a chamber of the differential pressure sensor inc... | 04/26/2011 |
| 7886607 | Package for strain sensor The invention relates to a package for a strain sensor. The package includes a base part (10) from a strain hardened material, a central part (20) from an annealed material which carries glass fritted leadthroughs, and a lid part (30), wherein t... | 02/15/2011 |
| 7874216 | Mounting apparatus and method for accurately positioning and aligning a leadless semiconductor chip on an associated header There is disclosed a method and apparatus for mounting a leadless semiconductor chip on a header. The semiconductor chip has contacts on a surface and the chip is of a specified geometric shape. The header has a contact surface for receiving the chip with the contac... | 01/25/2011 |
| 7827866 | Pressure transducer and method for monitoring the state of a pressure transducer and pressure sensor A pressure transducer for a pressure sensor (2) for determining at least one pressure (pa, pb) in a process media (3a, 3b) has a housing (4) with a separating diaphragm (5a, 5b | 11/09/2010 |
| 7823456 | Pressure sensor A pressure sensor is provided with a carrier (2), which in an inner region includes a membrane (4) on which at least one first measurement element (R1−) for detecting a pressure impingement of the membrane (4) is arranged. Additiona... | 11/02/2010 |
| 7779698 | Pressure sensor A pressure transmitter is provided. The pressure transmitter includes a pressure sensor including a pair of process fluid pressure ports each having a deflectable diaphragm. A first variable capacitor is disposed within the pressure sensor and has a capacitance that... | 08/24/2010 |
| 7779699 | Apparatus for measuring multiple pressures within different pressure ranges There is disclosed an apparatus for measuring multiple pressures within different pressure ranges. The apparatus contains multiple pressure sensors which are positioned on a housing, where each pressure sensor is adapted to measure pressure within a different pressu... | 08/24/2010 |
| 7770459 | Differential pressure diagnostic for process fluid pulsations A process pulsation diagnostic system comprises a primary element, a sensor and a processor. The primary element generates a differential pressure along a fluid flow. The sensor samples the differential pressure. The processor generates a pulsation diagnostic based ... | 08/10/2010 |
| 7757563 | Capacitance manometers and methods of making same A capacitance manometer comprises: a flexible diaphragm including a first electrode structure; an electrode structure including second and third spaced-apart electrode structures secured relative to the diaphragm so as to establish a capacitance between the first el... | 07/20/2010 |
| 7685879 | Differential pressure measuring transducer unit The disclosure relates to a differential pressure transducer unit comprising an over-load protection system which is used to measure low differential pressure in liquids and gases under high static pressure load which can be connected to flanges on the working press... | 03/30/2010 |
| 7673518 | Compact absolute and gage pressure transducer having a mounting apparatus for accurately positioning and aligning a leadless semiconductor chip on an associated header A compact absolute and gage pressure transducer consists of two sensors made from the same silicon wafer and adjacent each other on the wafer. The transducer contains a common header with a first and a second input port for receiving a first and a second pressure, r... | 03/09/2010 |
| 7637165 | Pressure measuring manometer with alignment spur A measuring device for detecting and indicating changes in fluid pressure of a test environment relative to ambient fluid conditions, wherein the measuring device includes a linear gear rack having an alignment spur, an indicator needle associated pinion gear, calib... | 12/29/2009 |
| 7607354 | Differential pressure sensor arrangement and associated differential pressure sensor The invention relates to a differential pressure sensor array comprising a differential pressure sensor which is inserted in a receiving space in the direction of the longitudinal axis thereof. At least one sealing element that separates the receiving space into a f... | 10/27/2009 |
| 7578194 | Differential fluid pressure measurement apparatus A differential liquid pressure sensor (10) has an upper housing (12) that mounts a connector portion (12a) and receives in a recess a sense element module (14). The sense element module is a body in which a generally U-shaped oil f... | 08/25/2009 |
| 7562580 | Ruggedized pressure sensor A ruggedized pressure sensor is described for high pressure applications having a top part of hard material with a surface adapted to deform when exposed to pressure, transducers to transform deformation of the surface into a signal proportional to the pressure, and... | 07/21/2009 |
| 7549341 | Method of maintaining a multitubular reactor The object of this invention is to provide a method of maintaining a multi-tubular reactor which can ensure the uniformity of states of reaction in the reaction tubes in the multi-tubular reactor. This invention is a method of maintaining a multi-tubular reac... | 06/23/2009 |
| 7516667 | Differential pressure sensor having symmetrically-provided sensor chips and pressure introduction passages A differential pressure sensor includes a case, a first and a second pressure sensing element, a first and a second pressure introduction passage, and a differential pressure determining element. The first and second pressure sensing elements work to respectively se... | 04/14/2009 |
| 7516666 | Pressure pickup with exchangeable process connection A pressure pickup comprising: A pressure sensor; a pressure pickup housing, which, preferably, defines in its interior a sensor chamber, in which the sensor is arranged The pressure pickup housing further includes a housing end surface having a housing opening, thro... | 04/14/2009 |
| 7509866 | Pressure sensor The invention relates to a pressure sensor with a carrier (2), which in an inner region comprises a membrane (4) on which at least one first measurement element (R1−) for detecting a pressure impingement of the membrane (4) is arran... | 03/31/2009 |
| 7497127 | Pressure-difference pickup with dynamic overload protection A pressure-difference pickup includes a hydraulic body, in which an overload chamber, with an overload membrane, or diaphragm, is formed, which divides the overload chamber into a first half-chamber and a second half-chamber, wherein the first half-chamber is in com... | 03/03/2009 |
| 7493820 | Gas pump filter optimization and alarm system with GPS and web enabled monitoring An apparatus for monitoring fuel filter performance and transmitting performance information. The performance information may be transmitted wirelessly to a computer or a wireless telephone and then transmitted to a technician. The performance information is prefera... | 02/24/2009 |
| 7490519 | System and method for sensing differential pressure A differential pressure sensing system is provided. The sensing system includes a membrane layer having a channel extending diametrically therein, and including one or more cavities provided radially outbound of the channel and at least one resonant beam disposed in... | 02/17/2009 |
| 7484415 | Pressure transducer employing a micro-filter and emulating an infinite tube pressure transducer A pressure transducer for measuring pressures in high temperature environments employs a tube which is terminated at one end by an acoustic micro-filter. The acoustic filter or micro-filter has a plurality of apertures extending from one end to the other end, each a... | 02/03/2009 |
| 7464601 | Disposable manometer for use with patient breathing systems A disposable manometer for use with a breathing system for monitoring a patient during positive pressure ventilation. The disposable manometer includes a housing with an upper and lower portion, a moving member and a flexible rolling diaphragm sealing mechanism betw... | 12/16/2008 |
| 7437937 | Relative pressure measuring transmitter A relative pressure measuring transmitter resistant to the intrusion of moisture. includes a housing, an insert arranged in the housing, a gap existing between the housing and the insert, a relative pressure sensor, and, connected to the relative pressure sensor, a ... | 10/21/2008 |
| 7437940 | Apparatus for measuring differential pressure An apparatus for measuring differential pressure includes first and second sensor units. The first sensor unit detects directly a first pressure of a substance at a first position and acquires a first detection result that indicates the first pressure. The second se... | 10/21/2008 |
| 7437910 | Pressure differentiator fitted with a temperature equalizing material An object of the invention is to provide a pressure differentiator capable of improving measurement accuracy. The pressure differentiator of the invention includes an isothermal pressure vessel 1, a narrow tube 3 for connecting an object to be m... | 10/21/2008 |
| 7434472 | Differential pressure transducer configurations including displacement sensor The present invention pertains to differential pressure transducers. In an embodiment of the invention, a differential pressure transducer includes a transducer housing, a diaphragm, a bellows, and a sensing assembly. The transducer housing, diaphragm, and bellows a... | 10/14/2008 |
| 7430919 | Capacitive pressure sensor with reference chamber A capacitive pressure sensor includes a substrate assembly having a conductive layer. A conductive membrane is mounted to the substrate assembly so that a sealed reference chamber is defined by the conductive membrane and the substrate assembly. A cap is arranged on... | 10/07/2008 |
| 7422164 | Spray gun with pressure display A spray gun with pressure display for applying paint onto a painted object by atomizing the paint with compressed air. A pressure indicating device includes a digitally displayed pressure sensor (25), a pressure transducer part (24), and a display part... | 09/09/2008 |
| 7418871 | Method for detecting a pressure of a medium and pressure measuring device A pressure measuring device for detecting a pressure to be measured of a medium, having a pressure housing; a converter situated in the pressure housing for converting a mechanical force produced by the pressure to be measured into an electrical signal; an output un... | 09/02/2008 |
