Bizarre Patents
Decorative Jeweled Wheel Cover
An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.
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| Number | Title | Issue Date |
| 7448254 | Method and apparatus for measuring knocking in internal combustion engines A method and apparatus for measuring knocking in internal combustion engines employs a high temperature transducer, which transducer is mounted within a cylinder. The output of the transducer is solely related to pressure. The output signal from the transducer is di... | 11/11/2008 |
| 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 |
| 7398674 | Device for pressure measurement, particularly in a combustion chamber of an internal combustion engine The invention relates to a device for measuring at least the pressure of a fluid present in a chamber (16), comprising a sensitive element (36) arranged in a housing (38), supported by a joint (10) inserted between two elements (12, 14... | 07/15/2008 |
| 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 |
| 7328677 | Plasma-jet spark plug and ignition system A plasma-jet spark plug includes a metal shell, an electrical insulator retained in the metal shell, a center electrode held in an axial hole of the electrical insulator to define a cavity by a front end face of the center electrode and an inner circumferential surf... | 02/12/2008 |
| 7305867 | Engine knock sensor The piezoelectric element of an engine knock sensor is held between upper and lower ring-shaped bases by two identical clips that extend through the piezoelectric element and engage each base. Each clip has a ring-shaped flange engaging a groove circumscribing the i... | 12/11/2007 |
| 7214908 | Glow plug integrated pressure sensor with filter trap In an integrated glow plug and pressure sensor having a passage leading to the pressure sensor, a porous filter is inserted in the passage. The porous filter provides a four-fold improvement in pressure measurement by (1) acting as a trap for combustion deposits, (2... | 05/08/2007 |
| 7201043 | Combustion pressure sensor and glow plug including the same To provide a combustion pressure sensor capable of reducing noises generated by the force in a rocking direction by making uniform the stress exerted onto the piezoelectric element; and a glow plug having the same. ... | 04/10/2007 |
| 7185621 | Glow plug with combustion pressure detecting function A glow plug comprising: a cylindrical housing; a heater member as defined herein; a conductive center pole as defined herein; a first piezoelectric element as defined herein; and a second piezoelectric element as defined herein, wherein each of said first piezoelect... | 03/06/2007 |
| 7178503 | System and method to pre-ignition in an internal combustion engine An engine system and method are disclosed for controlling pre-ignition of an alcohol fuel. In one embodiment, the fuel injection timing is adjusted to cause the fuel to avoid combustion chamber surfaces. In another embodiment, the fuel injection timing is adjusted t... | 02/20/2007 |
| 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 |
| 7171846 | In-cylinder pressure detection device An in-cylinder pressure detection device which is capable of ensuring stable detection accuracy irrespective of tightening torque applied in mounting the in-cylinder pressure detection device and thermal expansion of component parts of the same. A housing 21 ... | 02/06/2007 |
| 7159448 | Combustion-chamber pressure sensor having a metallic diaphragm containing a piezoresistive, thin metallic layer A pressure sensor for measuring the pressure in a space acted upon by high pressure. The signals detected by the pressure sensor are supplied to evaluation electronics. A sensor diaphragm is accommodated on the end of the pressure sensor pointing towards the space a... | 01/09/2007 |
| 7146847 | Knock sensor for an internal combustion engine A knock sensor for an internal combustion engine with an electronically evaluated vibration sensor should have a simple design and allow a rational installation. To this end, the vibration sensor is characterized in that the... | 12/12/2006 |
| 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 |
| 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 |
| 6973820 | Combustion pressure sensor designed to ensure stability of output characteristic and sensitivity A combustion pressure sensor for an internal combustion engine is provided. The sensor includes a sensing element such as a piezoelectric device sensitive to a physical load applied thereto to produce an electric signal indicative thereof and a bendable member. The ... | 12/13/2005 |
| 6938491 | Engine cylinder pressure sensor A pressure sensor for an internal combustion engine cylinder. The sensor has a housing with a pair of ends and a bore that extends through the housing. A barrel is mounted in the bore toward one end. The barrel has a cavity. A piezoelectric body is mounted in the ca... | 09/06/2005 |
| 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 |
| 6923046 | Arrangement and method to measure cylinder pressure in a combustion engine The pressure in a cylinder of a combustion engine is determined on the basis of vibrations in the engine which are generated during movement of the piston. A vibration signal (S) from a vibration sensor situated on a cylinder is filtered in the region about the pist... | 08/02/2005 |
| 6901810 | Method of cyclic testing A part that is subject to at least a cyclic thermal stimulus is numerically simulated to determine extremum states of stress therein that would be suitable for an associated life cycle test. The assembly of the part in a fixture is then numerically simulated to dete... | 06/07/2005 |
| 6752005 | Nonresonant type knock sensor A knock sensor comprises a sensor body having a metallic shell including a cylindrical portion and a flange portion formed at an end of the cylindrical portion, an annular piezoelectric element fitted around the cylindrical portion and an annular weighting member fi... | 06/22/2004 |
| 6439030 | Signal processing device for piezoelectric sensor A signal processing device is provided which is designed to process an output of a piezoelectric sensor to produce a signal which indicates a load applied to the piezoelectric sensor accurately without being affected adversely by leakage current occurring... | 08/27/2002 |
| 6138654 | Piezoelectric ignition and sensing device A spark plug comprising a piezoelectric element that strains with the increase in pressure in the cylinder of an internal combustion engine, and methods of making and using such a spark plug. The strain on the element generates a voltage across the poles ... | 10/31/2000 |
| 5753798 | Pressure sensor for gaseous and/or liquid media of internal combustion engines with improved temperature stability A pressure sensor having a disk-shaped sensor body which includes a pressure space for the medium to be measured. A bolt element in the pressure space forms a tubular pressure gap of small volume. The bolt element also forms a heat accumulator before the ... | 05/19/1998 |
| 5726351 | Spark plug comprising a force measuring element A spark plug with an insulating body held in a casing and containing an inner electrode is provided with a force-measuring element for measuring the pressure acting on the spark plug, the insulating body resting against the casing via the force-measuring ... | 03/10/1998 |
| 5635629 | Knock sensor A knock sensor for which a fabrication process is simple and moreover which can detect up to a high-frequency region is provided. A sensing element 11 composed of a semiconductor the weight (mass) thereof being 1 g or less and a signal processing circuit ... | 06/03/1997 |
| 5581016 | Aircraft engine detonation indication system A detonation detection system for internal combustion piston engines which senses pressure within each cylinder through a piezoelectric force transducers installed under each spark plug producing pressure charged signals which signal is converted from inl... | 12/03/1996 |
| 5559280 | Combustion chamber pressure transducer and method of making same A transducer housing for mounting a port in a combustion chamber has a metal diaphragm exposed to the combustion gasses. The pressure of the combustion gasses deflects the diaphragm which locally deflects a simply supported beam. The beam is formed of ref... | 09/24/1996 |
| 5380014 | Cylinder head gasket Cylinder head gasket for sealing the sealing gap between engine block and cylinder head of a multi-cylinder internal combustion engine comprising a sealing plate with several combustion chamber orifices, combustion chamber sealing elements at the edges of... | 01/10/1995 |
| 5329809 | Non-intrusive cylinder pressure sensor A cylinder pressure sensor of the annular insert type disposed within an access well to measure the flexure of a first wall relative to a second wall along a response axis has low-cost components thereof requiring only simple sequential assembly in axial ... | 07/19/1994 |
| 4821194 | Cylinder combustion monitoring apparatus An apparatus for monitoring cylinder combustion in an internal combustion engine having at least one cylinder to control the engine by employing a pressure sensor sensitive to combustion pressure in the cylinder for producing a sensor signal indicative of... | 04/11/1989 |
| 4686861 | Gasket type pressure sensor The present invention relates to a gasket type pressure sensor mounted on a vibrating body such as a cylinder head of an engine generating vibration derived from knocking and fuel injection, and used to detect pressure fluctuation by means of piezoelectri... | 08/18/1987 |
| 4640250 | Method and apparatus for engine knock level control A method and apparatus for controlling knock level in an internal combustion engine having knock induced vibrations and valve noises. Engine knock is decided when the knock induced vibration level exceeds at least one of the valve noise level and a limiti... | 02/03/1987 |
| 4620438 | Cylinder pressure transmitter for an internal combustion engine An improved cylinder pressure transmitter provides an electrical signal corresponding to pressure in a cylinder of an automotive internal combustion engine during engine operation and furnishes the signal to computer control means for use in regulating sp... | 11/04/1986 |
| 4524625 | Pressure sensor A pressure transducer suitable for remote sensing of pressure in hostile environments consists generally of a body and a sensing member. The body has first and second opposing inner surfaces defining an inside space therebetween. The sensing member is dis... | 06/25/1985 |
| 4492109 | Knocking detection apparatus for an internal combustion engine A knocking detection apparatus for multi-cylinder engines, capable of detecting knocking through sensing pressure pulsation propagating through the cooling water flowing in a cylinder block surrounding the cylinders. The knocking detection apparatus has a... | 01/08/1985 |
| 4491010 | Dynamic combustion characteristic sensor for internal combustion engine A dynamic combustion characteristic sensor suitable for the detection of the timing of peak combustion pressure or the occurrence of knock in an internal combustion engine comprises an engine headbolt having a piezoelectric disc affixed to the surface of ... | 01/01/1985 |
| 4483181 | Combustion pressure peak detector for combustion control for an internal combustion engine A combustion pressure peak detector comprised of a pair of flat annular piezo-electric elements separated by a flat metal electrode plate are located on a bolt for securing a cylinder head to a block of an internal combustion engine. The piezo-electric el... | 11/20/1984 |
| 4483179 | Method of and device for detection of knocking for internal combustion engine A method and device for detection of knocking in an internal combustion engine which can not only detect knocking but also an abnormal condition of a cooling liquid in a liquid cooled engine. The device detects the vibration or pressure fluctuations of th... | 11/20/1984 |
