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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 8117835 | Gasket A gasket resistant to vibration and noise generation is interposed between a cylinder head and an exhaust manifold of an engine. The gasket includes a gasket main body interposed between a cylinder head and an exhaust manifold of an engine, a base plate affixed to t... | 02/21/2012 |
| 7243490 | 4-cycle engine for motorcycle A 4-cycle engine for a motorcycle has a secondary-air supplier for supplying secondary air to exhaust ducts. The engine includes a recess, which is depressed toward the engine, on a cylinder-head cover for holding a control valve of the secondary-air supplier. The r... | 07/17/2007 |
| 7197869 | Secondary air supplying structure of internal combustion engine In a secondary air supplying structure of an internal combustion engine, extending portions protruding upward are arranged in the number corresponding to the number of cylinders. Extending portions are each provided with a secondary air distribution path. To a surfa... | 04/03/2007 |
| 7140177 | Secondary air supply system and abnormality diagnosis method of secondary air supply system In a secondary air supply system, each of two branch portions of a secondary air supply pipe that is divided from a joint portion is provided with an air control valve, and the joint portion is provided with a pressure sensor and an auxiliary air control valve. The ... | 11/28/2006 |
| 7122067 | Intake air filter for an internal combustion engine An intake air filter (1) is for an internal combustion engine, especially in a motor vehicle. The filter has a filter housing (2) having a raw air inlet (4), a pure air outlet (5), and an annular filter element (3) which is arrange... | 10/17/2006 |
| 7111701 | Motorcycle A motorcycle includes an axle of a rear wheel supported for rotation at a rear end of a swing arm. The swing arm is supported at a front end portion thereof for rocking motion on a vehicle body frame. A rear end exhaust portion of an exhaust system connected to a cy... | 09/26/2006 |
| 7028463 | Engine valve assembly A valve assembly defines a chamber and three ports. A first valve selectively obstructs a first port to prevent fluid communication between a secondary air injection pump and the chamber. A second valve selectively obstructs a second port to prevent fluid communicat... | 04/18/2006 |
| 7018590 | Reverse flow catalytic muffler A catalytic muffler having a housing with a first chamber and a second chamber fluidly communicating through a catalyst bed interspersed there between. A first baffle assembly in the first chamber extends between the catalyst bed and the housing. An inlet passage ex... | 03/28/2006 |
| 6829891 | Exhaust emission control device and method of controlling exhaust emission A first heat-resistant filter medium is disposed in an exhaust pathway of an internal combustion engine. The first heat-resistant filter medium traps hydrocarbon compounds and carbon-containing particulates included in a flow of exhaust gas in a dispersive manner to... | 12/14/2004 |
| 6637204 | Device and method for the heating of a catalytic converter for a supercharged internal combustion engine In a two-stage concept for supercharging of internal combustion engines, in which the first stage is performed by an exhaust-gas turbocharger and the second stage by an electrically driven compressor, the compressor is also used to provide the secondary a... | 10/28/2003 |
| 6516613 | Exhaust manifold device An exhaust manifold device is provided to allow air to enter an exhaust manifold during normal operation or an engine to prevent exhaust gases being sucked into the cylinders via exhaust valves. Air can be supplied, via valves (18 and 21) to the exhaust m... | 02/11/2003 |
| 6382197 | Secondary air supply system for engine of motorcycle A secondary air supply system for an engine of a motorcycle is provided with a secondary air valve composed of integrated reed valve and air-cut valve and the exhaust pipes are connected to exhaust ports formed to the engine. The secondary air valve is ar... | 05/07/2002 |
| 6327853 | Structure for introducing secondary air into exhaust path of internal combustion engine A secondary air introducing path 23 is formed in a cylinder head 1 along an exhaust port 5. Secondary air is fed by an air pump with pressure, and an outlet 23a of the secondary air introducing path 23 is formed so that a blowing direction of the outlet 2... | 12/11/2001 |
| 6318073 | Process and system for purifying exhaust gases of an internal-combustion engine An internal-combustion engine includes an engine control system that permits a change-over between a lean operation and a rich operation of the internal-combustion engine, and an exhaust gas purification system. A λ-probe, an SOx storage catal... | 11/20/2001 |
| 6311483 | Apparatus for feeding secondary air to exhaust gas in engine To provide an apparatus for feeding secondary air to exhaust gas in an engine. The apparatus includes a cylinder head having an exhaust port for discharging exhaust gas from a combustion chamber and a secondary air feed passage for feeding secondary air t... | 11/06/2001 |
| 6306190 | Secondary air supply device An air cleaning system for an engine includes a main air cleaner for supplying cleaned air to an intake system of the engine and a sub-air cleaner for supplying cleaned air to an exhaust system of the engine. The main air cleaner includes a main air clean... | 10/23/2001 |
| 6250076 | Saddle-type vehicle including an exhaust secondary air valve To provide an exhaust secondary air system intended to shorten the length of secondary air feed pipes connected to an exhaust secondary air valve thereby making compact the exhaust secondary air system including the secondary air feed pipes, and also to c... | 06/26/2001 |
| 6234124 | Internal combustion engine with valve rest mechanisms An internal combustion engine with valve rest mechanisms. Exhaust secondary air is introduced at an exhaust port in a stable manner regardless of the resting, opening and closing operations of exhaust valves. Certain exhaust valves in the internal combust... | 05/22/2001 |
| 6220020 | Secondary air supply passage for an engine A secondary air supply passage joins a reed valve chamber provided on a cylinder head cover and an exhaust gas port. The secondary air supply passage includes three aligned passages formed in a cylinder head, a cam holder and a cylinder head cover. The se... | 04/24/2001 |
| 6216453 | Secondary air supply system for internal combustion engine A secondary air supply system, for an internal combustion engine having a closed crankcase includes a diaphragm air pump. The pumping chamber has one way valves such that ambient air may enter the pumping chamber only through the inlet port and exit the p... | 04/17/2001 |
| 6167699 | Secondary air injection system for an internal combustion engine A secondary air injection system for reducing the hydrocarbon emissions of an internal combustion engine that is provided with an air pump supplying air to the exhaust manifold of the engine through a check valve assembly and an elastomeric hose character... | 01/02/2001 |
| 6164066 | Muffler for internal combustion engine A muffler for an internal combustion engine has a vertically elongated expansion chamber into which an exhaust gas from the exhaust port of internal combustion engine is introduced. The expansion chamber is separated level-wise into a first expansion cham... | 12/26/2000 |
| 6155043 | Method for injection duration correction in an internal combustion engine having a secondary-air system By taking into account the deviation between a desired value, determined from a model for a secondary-air mass flow and an actual value of the secondary-air mass flow, detected by an airflow sensor, a correction value is obtained. From the correction valu... | 12/05/2000 |
| 6085519 | Anti-coking air injection apparatus for an internal combustion engine An improved anti-coking air injection reaction system in which individual air passages in the engine cylinder head are provided with electrical resistance heating elements that are periodically activated to develop radiant energy that bums off coke deposi... | 07/11/2000 |
| 6062020 | Exhaust manifold converter apparatus A manifold converter apparatus comprising a manifold housing including a plurality of inlets wherein each inlet of the plurality of inlets is mounted immediately adjacent an internal combustion engine exhaust port and a plurality of lead pipes wherein eac... | 05/16/2000 |
| 6012283 | Method and apparatus for reducing pollutants A method and apparatus are provided for improving the conversion efficiency of a catalytic converter for treating exhaust gases produced from the combustion of a fuel to at least reduce pollutants from incomplete combustion, wherein the reduction in pollu... | 01/11/2000 |
| 5612006 | Catalytic converter and phase-spreading spiral muffler assembly An assembly combining a catalytic converter with a spiral muffler, particularly for small internal combustion engines. In series are an expansion chamber, a venturi for air injection, a catalytic converter, and a phase-spreading spiral muffler. The expans... | 03/18/1997 |
| 5524434 | Internal combustion engine An internal combustion engine 12 in which liquid fuel is introduced prior to the charge entering the combustion chambers is mounted in a vehicle having an air scoop 34 which acts as a source of ram air pressurised by the movement of the vehicle. The ram a... | 06/11/1996 |
| 5517978 | Pollution control system for an internal combustion engine A pollution control system for an internal combustion engine comprises a mechanism for separating air from the environment into nitrogen enriched air and oxygen enriched air. The nitrogen enriched air is introduced to an internal combustion engine, thereb... | 05/21/1996 |
| 5408829 | Outboard motor with means for supplying secondary to catalytic converter Disclosed herein is an outboard motor comprising a drive shaft housing including an inner wall partially defining a pumping chamber, an air inlet port communicating between the pumping chamber and the atmosphere, and an air outlet port communicating with ... | 04/25/1995 |
| 5406788 | Method and apparatus for monitoring a system for delivering secondary air to the exhaust gas internal combustion engine An apparatus for monitoring a system for delivering secondary air to an exhaust tube of an internal combustion engine. In the method and apparatus, a secondary air pump is switched on and builds up a pressure on the inlet side of a blocking valve which is... | 04/18/1995 |
| 5332554 | Exhaust purifying catalyst for use in an internal combustion engine and method of manufacturing same An exhaust gas purifying catalyst for use in an internal combustion engine includes a porous monolithic carrier, a catalyst coating layer formed on a surface of the monolithic carrier and containing a catalytic material capable of purifying exhaust gases,... | 07/26/1994 |
| 5205246 | Economy engine The invention presents new and useful improvements in the mechanical design of control elements used in the sequencing of the exhaust and intake process cycles of the 4-stroke reciprocating piston engine. The exhaust and induction circuits pass through th... | 04/27/1993 |
| 5177958 | Secondary air injection valve and mounting system for automotive engine An air injection valve and air discharge manifold for supplying atmospheric air to the exhaust stream of an automotive engine includes an air injection valve for controlling the flow of air, with the valve including a tubular entry section and a unitary t... | 01/12/1993 |
| 5134849 | Engine gas ejector exhaust system The invention relates to new and useful improvements in the design of combustion gas ejector systems and in particular to those types of ejector systems employed on piston driven internal combustion engines. The invention provides a method of efficiently ... | 08/04/1992 |
| 4610235 | Hydraulic drive supercharger for internal combustion engines An oil driven supercharger is disclosed with the turbine operating on oil from the lubricating system of an internal combustion engine or from a separate source of pressure oil. In the disclosed form of the invention, the turbine drives a pair of air comp... | 09/09/1986 |
| 4558670 | Internal combustion engine Stratification of charge in a four stroke internal combustion engine in which a stream of air issues from a duct (46) and is directed tangentially into a cylinder (2) to circulate about the cylinder adjacent to the cylinder walls. The air is admitted to t... | 12/17/1985 |
| 4539812 | Air cooled exhaust valve An air cooled exhaust valve provided primarily for use with an internal combustion engine, or the like. The valve is of the type having an elongated stem and an enlarged head formed at one end of the stem. The stem is axially slidably mounted within a hou... | 09/10/1985 |
| 4437306 | Exhaust gas cleaning device of internal combustion engine An exhaust gas cleaning device of an internal combustion engine wherein a secondary-air supply passage is connected to an exhaust system of the engine and a reed valve means is provided in the intermediate part of the secondary-air supply passage for open... | 03/20/1984 |
| 4325346 | Four-cycle internal combustion engine The present invention relates to a four-cycle internal combustion engine in which a strong swirl can be generated within the combustion chamber through the directionality of the mixed gas supplied from the main suction path and the injection of a gas from... | 04/20/1982 |
