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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 6820490 | Systems and methods for measuring pressure Methods and systems for measuring the pressure of a fluid. A flexible barrier separates the fluid from the pressure receiving surface of a pressure sensing device. The pressure of the fluid is transferred through the flexible barrier to the pressure receiving surfac... | 11/23/2004 |
| 6813953 | Pressure sensor with a corrosion-resistant diaphragm A pressure sensor includes a sensor device and a diaphragm. The diaphragm is exposed to a fluid, a pressure relative to which is detected using the sensor device. The diaphragm is made of a material having a pitting index, which is defined by the equation, (Cr+3.3Mo... | 11/09/2004 |
| 6810746 | Sensor arrangement with pressure detector and sensor circuit A sensor arrangement has a housing, a pressure detector having a measuring diaphragm which is deflectable by a pressurized measurement medium, a sensor circuit attached directly to the measuring diaphragm, an electronic evaluation circuit connected to the sensor cir... | 11/02/2004 |
| 6807865 | Pressure sensor with a radially tensioned metal diaphragm A pressure sensor having a radially tensioned diaphragm for measuring fluid pressure. The pressure sensor includes a first generally concave metal body member and a second generally concave metal body member, and a radially tensioned flexible metal diaphragm located... | 10/26/2004 |
| 6802222 | Diaphragm-type semiconductor device and method for manufacturing diaphragm-type semiconductor device A diaphragm-type semiconductor device includes a semiconductor substrate, a surface of which is substantially flat, a diaphragm, which covers a circular pressure reference space located on the surface, and a circular electrode layer, a middle part of which is embedd... | 10/12/2004 |
| 6796185 | Differential pressure/pressure transmitter The differential pressure/pressure transmitter of the present invention detects overpressures by using pre-loading diaphragms. The differential pressure/pressure transmitter of the present invention is provided with a high pressure-side diaphragm assembly 24 ... | 09/28/2004 |
| 6776046 | Pressure sensor with foresighted maintenance control and monitoring for diaphragm fracture and to a method for monitoring for diaphragm fracture A pressure-measuring device with monitoring for diaphragm fracture comprises a housing with a passage whose two openings at the end faces of the housing are closed by a first deformation body and a second deformation body. The passage is completely filled with a tra... | 08/17/2004 |
| 6772788 | Pressure control valve The present invention relates to a pressure control valve, in particular for electrohydraulic brake systems, including a valve member arranged in a valve housing and a sensor element for determining the fluid pressure that prevails in the valve housing. The fluid pr... | 08/10/2004 |
| 6769308 | Low-cost stainless steel pressure sensor assembly for a pneumatic valve An improved low-cost pressure sensor assembly incorporates a stainless steel sensor element welded to an outboard face of a stainless steel insert captured in a low-cost metal pressure port adapted for attachment to a pneumatic valve. The pressure port includes outb... | 08/03/2004 |
| RE38557 | Non-contaminating pressure transducer module A non-contaminating pressure transducer module having an isolation member is disclosed. The isolation member isolates a pressure sensor within the transducer module from exposure to ultra high purity fluids flowing through a conduit in the module without significant... | 07/20/2004 |
| 6758086 | Automotive cylinder pressure sensors Several associated techniques and fiber optic constructions are disclosed to protect a diaphragm type fiber optic cylinder pressure sensor from the effects of maximum under hood temperatures and to minimize errors associated with rapidly changing under hood and engi... | 07/06/2004 |
| 6756248 | Pressure transducer and manufacturing method thereof A pressure transducer designed to transform static pressure or dynamic pressure applied to a diaphragm into a corresponding electrical signal and a method of manufacturing the same are provided. The transducer includes a fixed electrode formed in an upper surface of... | 06/29/2004 |
| 6742397 | High pressure sensor with separate pressure port and housing and method for making the same A high pressure sensor is provided with a single-piece pressure port machined from stainless steel and has no internal gaskets or seals. A housing surrounds the pressure port along a portion of its axial length. The housing and pressure port have mating configuratio... | 06/01/2004 |
| 6742395 | Hermetic pressure transducer A port fitting (102) is formed with a closed, pedestal end forming a diaphragm (102a) on which a strain gauge sensor is mounted. A support member (106) is received on the pedestal end and is formed with a flat end wall (106a... | 06/01/2004 |
| 6736013 | Pressure sensor integrated into an electro-hydraulic control unit A pressure sensor is mounted integrally in a hydraulic valve body. The sensor has a base which extends into a bore formed in the valve body. The valve body bore is in communication with a pressurized hydraulic fluid. A first circumferential groove formed in the sens... | 05/18/2004 |
| 6732588 | Pressure transducer The present invention relates to compact solid state silicon-based condenser microphone systems suitable for batch production. The combination of the different elements forming the microphone system is easier and more economical to manufacture compared to any other ... | 05/11/2004 |
| 6732589 | Pressure sensor, a method for manufacturing a pressure sensor and a combustion engine having a pressure sensor A pressure sensor includes a housing, an interior chamber of which is sealed by a diaphragm, and a flexible measuring element, which is positioned separately. In addition, the pressure sensor includes a transmission element, which is formed as a chip and is used to ... | 05/11/2004 |
| 6725725 | Micromechanical differential pressure sensor device A micromechanical differential pressure sensor device for measuring a pressure difference between two mutually separated spaces or media, in which two absolute pressure measuring devices are monolithically integrated on a single support substrate, in particular on a... | 04/27/2004 |
| 6725724 | Manufacturing method for a thin-film high-pressure sensor A method for manufacturing a sensor component, in particular, a thin-film high-pressure sensor, as well as a sensor component, is described, in which at least one measuring element, in particular an expansion measuring strip is arranged on a membrane, and separated ... | 04/27/2004 |
| 6715356 | Pressure sensor having metallic diaphragm seal mount A pressure sensor that is particularly suitable for the food industry and the measuring accuracy of which is stable over a long time, having a diaphragm seal with a separating diaphragm on which a pressure to be measured acts and having a ceramic measuring cell whic... | 04/06/2004 |
| 6715357 | Hermetic pressure transducer A port fitting is formed with a closed, pedestal end forming a diaphragm on which a strain gauge sensor is mounted. A support member is received on the pedestal end and is formed with a flat end wall having an aperture aligned with the sensor. A portion of a flexibl... | 04/06/2004 |
| 6708567 | Non-directional load detecting sensor A fluid-filled elastic hollow body 2, includes a pressure sensor 4 for detecting the pressure of the fluid in the elastic hollow body, and an adapter 6 for coupling the elastic hollow body to an external movable member. The elastic hollow body | 03/23/2004 |
| 6705169 | Pressure mediator with module for detecting broken diaphragms, and module for detecting broken diaphragms A pressure mediator includes a base body; a divider diaphragm system having a first divider diaphragm and a second divider diaphragm, between which an intermediate chamber is enclosed in pressuretight fashion, in which the first surface of the first divider diaphrag... | 03/16/2004 |
| 6694818 | Pressure sensor having semiconductor sensor chip A semiconductor sensor chip is interposed between a sensor case and a housing. A first pressure is introduced from the sensor case and applied to a rear surface of the sensor chip, while a second pressure is introduced from the housing and applied to a fr... | 02/24/2004 |
| 6688181 | Membrane pressure sensor comprising silicon carbide and method for making same The invention concerns a pressure sensor (1), able to operate at high temperature and measure the pressure of a hostile medium, comprising: a sensing element (4) integrating a membrane (8) in monocrystalline silicon carbide, made by micro-machining a substrate... | 02/10/2004 |
| 6684708 | Pressure sensor for detecting the pressure of a liquid A pressure sensor includes a pressure sensor element that is provided with a pressure sensor membrane. The pressure sensor element is held in a receiving part in a defined position during operation within a permissible operating pressure range by a spring... | 02/03/2004 |
| 6684709 | Pressure transducer with captured non compressible liquid volume defining neutral condition A pressure transducer which has a closed chamber which is full of oil or other non-compressible liquid. Pressure communicates with a diaphragm which defines one side of the closed chamber and the pressure communicates via the oil with a pressure sensor wh... | 02/03/2004 |
| 6684711 | Three-phase excitation circuit for compensated capacitor industrial process control transmitters A capacitor industrial process control transmitter includes a three-phase excitation circuit to charge a sensing capacitor and a compensation capacitor of the transmitter and transfer charges to an integrator. The sensing capacitor is charged during the f... | 02/03/2004 |
| 6681637 | Pressure-measuring cell with a temperature sensor A pressure-measuring cell having a base and a diaphragm positioned on the base is deformed by a pressure being measured. A temperature-measuring sensor is positioned between the diaphragm and the base preferably embedded in a material layer that seals a c... | 01/27/2004 |
| 6675654 | Pressure sensing device with moisture filter A chamber in the interior of a housing communicates with the environment of the housing by means of a gas esxchange path, wherein a filter element with a hydrophobic and/or hydrophobicized, nanoporous material is placed in the gas exchange path. The chamb... | 01/13/2004 |
| 6672170 | Hermetic pressure transducer A port fitting is formed with a closed, pedestal end forming a diaphragm on which a strain gauge sensor is mounted. A support member is received on the pedestal end and is formed with a flat end wall having an aperture aligned with the sensor. A portion o... | 01/06/2004 |
| 6668659 | Load detecting device In a load detecting device, a hermetically sealed sensor chamber is constituted by a sensor head, a bellows, a housing and a stem. A sensor chip for detecting pressure is housed in the sensor chamber that is filled up with liquid. When load is applied to ... | 12/30/2003 |
| 6668657 | Pressure sensor A pressure sensor for a motor vehicle includes a sensor housing and a base. A pressure bore through the base leads to a pressure space delimited on one side by the base and on the opposite side by a diaphragm connected sealingly to the base. An actuating ... | 12/30/2003 |
| 6662662 | Pressure transmitter with improved isolator system A pressure transmitter with a fluid isolator that includes a sensor tube and a fill tube that have "D" shaped ends that connect together in a port internal to the transmitter. The shaped ends can be brazed into the port for sealing. Fitting both the senso... | 12/16/2003 |
| 6658940 | Pressure sensor, and a method for mounting it A pressure sensor element for mounting in a connecting element comprises an isolator body with a laterally projecting membrane. The laterally projecting membrane covering an opening of a passage through which the pressure present at the surface of the mem... | 12/09/2003 |
| 6655216 | Load transducer-type metal diaphragm pressure sensor There is provided an improved load transducer type metal diaphragm pressure sensor capable of accurately sensing pressures, which is low in cost, easy to fabricate, and suitable for mass-production. The metal diaphragm pressure sensor (1) comprises a disc... | 12/02/2003 |
| 6649046 | Device for measuring negative pressures in an extracorporeal blood circuit A device for measuring the pressure of blood in a pipe (44) of an extracoporeal blood cicuit, includes a pressure measurement section (46) having a compartment (58) which is delimited especially by a main wall (64) and by a secondary wall (65) facing it. ... | 11/18/2003 |
| 6644125 | Pressure sensor The invention relates to a pressure sensor consisting of a chip (11) which is mounted on a support wall (10) and which is provided with a resistance unit consisting of strip conductors and being arranged at the lower side (13) of a substrate (12). Said lo... | 11/11/2003 |
| 6644124 | Vacuum and pressure test assembly A test assembly includes a valve and a piston received in a casing. The valve includes a main passage and a flexible seal film is mounted to an end of the valve. The seal film seals the main passage and has two apertures. A radial passage is defined throu... | 11/11/2003 |
| 6644123 | Low mass pointer element for a pressure measuring mechanism A low-mass pointer element for a pressure measuring mechanism is made from a lightweight plastic paper material and includes a center hub having a through aperture which is sized to accommodate a rotatable shaft end of the pressure measuring mechanism. An... | 11/11/2003 |
