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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 |
| 7836753 | Knock sensor A knock sensor includes a resin mold having a first cylindrical resin mold section that encloses a base, annular constituent parts and a pressing member of the knock sensor; and a connector section that protrudes from a side of the first mold section and is integral... | 11/23/2010 |
| 7475589 | Knock sensor A knock sensor 1 for attachment to an internal combustion engine. The knock sensor 1 includes a cap 41a and a support member 11. At least a part of the top surface of the support member 11 is covered by cap 41a | 01/13/2009 |
| 7440861 | Concept of compensating for piezo influences on integrated circuitry The inventive circuitry on a semiconductor chip includes a first functional element having a first electronic functional-element parameter that exhibits a dependence relating to the mechanical stress present in the semiconductor circuit chip in accordance with a fir... | 10/21/2008 |
| 7437260 | Concept of compensating for piezo influences on integrated circuitry A semiconductor chip includes a first functional element having a first electronic functional-element parameter exhibiting a dependence relating to the mechanical stress present in the semiconductor circuit chip, and being configured to provide a first output signal... | 10/14/2008 |
| 7331414 | Protective structure for an electrical circuit device A protective structure for an electrical circuit device attached to a vehicle includes a resin case, an electrical circuit, and a rigid body. The electrical circuit is contained in the resin case. The rigid body is contained in the resin case. The rigid body protrud... | 02/19/2008 |
| 7207207 | Knock sensor A knock sensor of the invention includes a base having a cylindrical part mounted on a vibration generating part and a flange part, an annular piezoelectric element fitted to the cylindrical part and for converting a knocking vibration of the vibration generating pa... | 04/24/2007 |
| 7201038 | Knock sensor and manufacturing method thereof A knock sensor is constructed by putting and fitting components including an annular piezoelectric element, terminal plate, insulating sheet and weight onto a base consisting of a flange portion and a tubular portion, forming a groove part on a tip outer circumferen... | 04/10/2007 |
| 7196261 | Electronic percussion instrument for producing sound at intended loudness and electronic percussion system using the same An electronic drum includes a pad to be beaten with sticks, a circular piezoelectric converter for converting stress to an electric signal and a semi-circular filter element adhered at one surface to the pad and at the other surface to the circular piezoelectric con... | 03/27/2007 |
| 7178383 | Knock sensor A stacked body constituted by a first insulating sheet, a first terminal plate, a piezoelectric element, a second terminal plate, a second insulating sheet, a weight, and a disk spring is fitted over a cylindrical portion of a base, clamped and held between a nut an... | 02/20/2007 |
| 7116215 | Sensor device and ceramic package for mounting electronic components A sensor device includes a G sensor producing an electric signal in accordance with physical displacement of its sensing portion and a casing mounting this G sensor. A casing chamber is sealed with a potting material so that the G sensor is covered with the potting ... | 10/03/2006 |
| 7100426 | Knocking sensor A knocking sensor comprises: a cylindrical body including a cylindrical portion and a supporting flange provided at an outer circumference of a lower end of the cylindrical portion; parts including an insulating member, an electrode plate and an annular piezoelectri... | 09/05/2006 |
| 7032439 | Engine misfire detection using system identification technology A method of detecting misfire events in an engine uses system identification technology. A linear model is determined for estimating engine firing events based on engine speed fluctuations. The linear model is represented as a difference equation. A Kalman filter is... | 04/25/2006 |
| 7007544 | Knock sensor A knock sensor of the invention includes a base having a cylindrical part mounted on a vibration generating part and a flange part, an annular piezoelectric element fitted to the cylindrical part and for converting a knocking vibration of the vibration generating pa... | 03/07/2006 |
| 7004009 | Knocking sensor for internal combustion engine and manufacturing method of the same There is provided a knocking sensor for an internal combustion engine improved so that electrical damage of a terminal plate in an annular combination member is more certainly prevented. Only two communicating passages separate from each other by substantially 180 d... | 02/28/2006 |
| 6988483 | Control apparatus for an internal combustion engine To provide a control apparatus for an internal combustion engine which can judge an abnormality regardless of one line type or two line type, and can also detect the classification of abnormality. The control apparatus includes: a knock sensor having a piezoelectric... | 01/24/2006 |
| 6986277 | Engine knock sensor and structure for mounting the same Structure for mounting a knock sensor (41) on an engine includes the sensor (41) comprised of an annular main body (1) and an external connecting portion (2). The knock sensor (41) is secured onto a mounting seat (52) formed... | 01/17/2006 |
| 6933656 | Ultrasonic motor having integrated electrodes and manufacturing method of the same A stator includes first and second piezoelectric elements, a flexible aluminum-based connective arrangement and upper and lower aluminum-based metal blocks. The flexible aluminum-based connective arrangement includes first to fourth aluminum-based electrodes, which ... | 08/23/2005 |
| 6925878 | Acceleration sensor An acceleration sensor comprises a fixed case member and a cover assembly collectively defining a closed space in which the oscillation plate and the piezoelectric element received therein. The oscillation plate and the piezoelectric element are oscillatably support... | 08/09/2005 |
| 6923041 | Non-resonance type knock sensor A non-resonance type knock sensor is provided which comprises a support member having a main body portion in the form of a hollow post and a radially outward flange portion at an axial end of the main body portion, the main body portion having an abutment at an oute... | 08/02/2005 |
| 6868714 | Vibration sensor for fixing directly or indirectly to a vibrating component A vibration sensor for direct or indirect mounting on a vibrating component has a housing, a pressure sleeve having a central bore and a piezoelectric disk situated between two insulator disks and two contact disks, a seismic mass acting on the disks by way of a spr... | 03/22/2005 |
| 6817245 | Acceleration sensor An acceleration sensor for detecting an acceleration caused by an object oscillated in an oscillation direction, comprises a sensor casing having a center axis that is positioned in coaxial alignment with the oscillation direction to receive the acceleration, an osc... | 11/16/2004 |
| 6786078 | Vibration pickup comprising a clamping sleeve A vibration sensor having a pressure sleeve in which the pressure sleeve may be mounted under pressure on a component causing vibration. To detect a vibration signal, e.g., in the case of a knock sensor, a sensory system is held by a seismic mass above it on the out... | 09/07/2004 |
| 6776026 | Knock sensor A knock sensor, comprising: a sleeve; a piezoelectric transducer disposed about the sleeve, the piezoelectric transducer being insulated from the sleeve and in electrical communication with a first terminal and a second terminal; wherein the piezoelectric transducer... | 08/17/2004 |
| 6769305 | Acceleration sensor An acceleration sensor for detecting an acceleration caused by an object oscillated in an oscillation direction, comprises a sensor casing having a center axis that is positioned in coaxial alignment with the oscillation direction to receive the acceleration, an osc... | 08/03/2004 |
| 6739182 | Vibration pickup and an insulating disk for a vibration pickup A vibration sensor for direct or indirect mounting on a vibrating component such as an engine block. The vibration sensor has a housing and a pressure sleeve, which includes a central bore, a cylindrical area and a flange-like edge. A piezoelectric disk is situated ... | 05/25/2004 |
| 6647760 | Vibration pickup with pressure sleeve A vibration pickup has a pressure sleeve which is placeable on a component causing vibrations, a sensor element which detects the vibration, a seismic mass which is placeable outside of the sleeve on a support surface of the sensor element with an axial p... | 11/18/2003 |
| 6532795 | Vibration pickup with a pressure sleeve A vibration pickup has a pressure sleeve mountable directly or indirectly on a component which causes vibrations, a sensor element which is held radially outwardly on the pressure sleeve with an axial pre-tensioning and is electrically contactable, a spri... | 03/18/2003 |
| 6279381 | Vibration pickup with pressure sheath A vibration transducer has a pressure sleeve fastenable directly or indirectly on a structural component part causing vibrations, a sensor element which is held at the pressure sleeve on a radial outer side with an axial pretensioning, a plurality of cont... | 08/28/2001 |
| 6247351 | Vibration pickup with a pressure sleeve A vibration pickup has a pressure sleeve which is directly or indirectly mountable on a component causing vibration, a seismic mass, a sensor element arranged under the seismic mass and held with an axial pretensioning radially outwardly on the pressure s... | 06/19/2001 |
| 6220078 | Vibration pickup with a pressure sleeve A vibration pickup has a pressure sleeve mountable directly or indirectly on a component causing vibrations, a spring, a sensor element which is held radially outwardly on the pressure sleeve with an axial tensioning by the spring and is electrically cont... | 04/24/2001 |
| 6212940 | Accelerometer sensor for detecting knocks and method for making same It comprises a) a cylindrical base (1) formed of an axial barrel (2) protruding from an annular shoulder (3), through both of which there passes an axial hole (4), b) a washer (6) made of a piezoelectric material slipped over the barrel, c) means (71, 72)... | 04/10/2001 |
| 6196184 | Method and device for detecting a preinjection in an internal combustion engine A method for detecting a preinjection picks up and evaluates a vibration signal which occurs when a nozzle needle strikes a needle seat of an injector of a direct-injection internal combustion engine operating with a preinjection and a main injection. A s... | 03/06/2001 |
| 6112577 | Piezoelectric resonance type knock sensor for internal combustion engine A piezoelectric resonance type knock sensor that is highly responsive and easy to assemble, wherein a bulged round seat section (washer 7) arranged under the lower surface of a thin metal plate 5 and coaxally with a support bolt 9 in such a way that the o... | 09/05/2000 |
| 5965804 | Knock sensor A knock sensor employs a piezoelectric element and includes a ring-shaped weight which has a chamfered surface portion formed at an inner peripheral edge of the weight. The knock sensor basically comprises a housing which includes a disc-shaped flange por... | 10/12/1999 |
| 5960772 | Apparatus and method for knock detection in internal combustion engines The present invention provides a knock sensing system for an internal combustion engine which utilizes only a single knock sensor associated with one of the engine cylinders. Operation of the engine is controlled such that the cylinder which is equipped w... | 10/05/1999 |
| 5939616 | Knocking detecting sensor A knocking detecting sensor (1) includes a piezoelectric element plate (8) for detecting vibration due to knocking generated in an internal combustion engine and a main metallic sleeve (5) for supporting the piezoelectric element plate (8) on the side of ... | 08/17/1999 |
| 5895840 | Vibration sensing device having slidable conductive member In a vibration sensing device for sensing a knocking vibration of an engine, a piezoelectric element is connected to an output terminal through a resilient conductive member. The resilient conductive member has a fixed base part, a sliding part at a posit... | 04/20/1999 |
| 5872307 | Vibration pick-up with pressure sleeve A vibration pick-up with a pressure sleeve is mounted by a mounting element extending through a central opening of the pressure sleeve. The pressure sleeve is clamped with an abutment surface on a component which causes vibrations. A threaded ring with a ... | 02/16/1999 |
| 5837887 | Misfire sensor A sensor element for detecting misfire in an internal combustion engine includes: a detecting unit including a piezoelectric film consisting essentially of a ceramic material, a first electrode coated onto at least a portion of the outer surface of the pi... | 11/17/1998 |
| 5798453 | Pressure sleeve A pressure sleeve for a vibration pickup, has a body part with a central opening for a mounting element and a supporting surface to be placed on a component causing vibrations, a detecting element arranged radially outwardly on the body part with an axial... | 08/25/1998 |
