Bizarre Patents
Mouthguard made at least partially from an edible candy
A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.
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| Number | Title | Issue Date |
| 7398762 | Vehicle control system A method is provided for controlling an engine having an intake manifold and an outlet control device coupled to the manifold for controlling flow exiting the manifold and entering at least one cylinder of the engine. The engine further includes an inlet control dev... | 07/15/2008 |
| 7309141 | Air actuated decoration system and device The invention is a system that provides a means to using passing air to turn on an electronically powered device that is removably attached to an exterior portion of a vehicle as the vehicle travels betweens two locations. The invention is also embodied as a device ... | 12/18/2007 |
| 5460149 | Carburetor kit for improved air-fuel mixture Flow passage lines are used to connect the float chamber of a conventional carburetor both to the engine's intake and exhaust manifold. The gas flow produced by the exhaust manifold provides a continuous source of positive pressure to the float chamber, w... | 10/24/1995 |
| 5353776 | Method and apparatus for controlling fuel flow to lean burn engines The system for controlling the air/fuel mixture introduced into a lean burn engines includes a fuel/air mixing carburetor that is connected to the intake conduit to the engine and an air by-pass conduit that is also connected to the intake conduit. The ma... | 10/11/1994 |
| 5343846 | Control system for internal combustion engines A control system for an internal combustion engine controls an amount of auxiliary air supplied to the engine in the following manner: Concentration of evaporative fuel contained in a gas purged from an evaporative emission control system into an intake p... | 09/06/1994 |
| 5251438 | Air-fuel ratio control apparatus for engine An air-fuel ratio feedback control apparatus for a gas engine. A mixer mixes intake air and a fuel gas. A subsidiary supply path supplies at least one of the intake air and the fuel gas downstream of the mixer. Oxygen concentration sensors detect a concen... | 10/12/1993 |
| 5163412 | Pollution control system for older vehicles A pollution or emission control system for retrofitting on older vehicle engines includes a catalytic converter with an in-built oxygen sensor for mounting in the exhaust line, and a supplemental air input line containing a control valve for connection to... | 11/17/1992 |
| 4841940 | Air-fuel ratio control device of an internal combustion engine An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of openin... | 06/27/1989 |
| 4838229 | Air-fuel ratio control device of an internal combustion engine An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of openin... | 06/13/1989 |
| 4765305 | Control method of controlling an air/fuel ratio control system in an internal combustion engine In a method for determining a control parameter of an air/fuel ratio control system of an internal combustion engine by means of an oxygen concentration sensor disposed in an exhaust system of the engine, the control parameter of the air/fuel ratio is det... | 08/23/1988 |
| 4763265 | Air intake side secondary air supply system for an internal combustion engine with an improved duty ratio control operation An air intake side secondary air supply system for an internal combustion engine having an air intake side secondary air supply system includes an oxygen concentration sensor, and controls a duty ratio of opening and closing of an open/close valve dispose... | 08/09/1988 |
| 4732132 | Air intake side secondary air supply system for an internal combustion engine using a linear-type solenoid valve An air intake side secondary air supply system for an internal combustion engine is provided with a linear type solenoid valve disposed in an air intake side secondary air supply passage leading to an intake air passage, downstream from the throttle valve... | 03/22/1988 |
| 4732127 | Air/fuel ratio control system for an internal combustion engine with a function for preventing the blackening phenomenon of oxygen concentration sensor An air/fuel ratio control system for an internal combustion engine having an air supply system for controlling the air/fuel ratio of mixture to be supplied to the engine, and an oxygen concentration sensing device for sensing the oxygen concentration in t... | 03/22/1988 |
| 4715352 | Air intake side secondary air supply system for an internal combustion engine with a duty ratio control operation An air intake side secondary air supply system for an internal combustion engine including an open/close valve disposed in an air intake side secondary air supply passage and an oxygen concentration sensor producing an output signal whose level is substan... | 12/29/1987 |
| 4715350 | Air intake side secondary air supply system for an internal combustion engine with a duty ratio control operation An air intake side secondary air supply system for an internal combustion engine having an air intake system using a carburetor and an air intake side secondary air supply passage leading to the downstream of the carburetor, includes an oxygen concentrati... | 12/29/1987 |
| 4715349 | Air intake side secondary air supply system for an internal combustion engine with an improved operation under a small intake air amount An air intake side secondary air supply system for an internal combustion engine is provided with a device for restricting the amount of the secondary air flowing through an air intake side secondary air supply passage when an amount of an intake air of t... | 12/29/1987 |
| 4705012 | Air intake side secondary air supply system for an internal combustion engine with a duty ratio control operation An air intake side secondary air supply system for an internal combustion engine has an air intake system using a carburetor and an air intake side secondary air supply passage leading downstream of the carburetor. The passage includes an oxygen concentra... | 11/10/1987 |
| 4705011 | Air intake side secondary air supply system for an internal combustion engine with an improved operation for a large amount of the secondary air An air intake side secondary air supply system for an internal combustion engine is provided with an open-close valve in an air intake side secondary air supply passage which is provided in addition to an air intake side secondary air supply passage for a... | 11/10/1987 |
| 4694803 | Air-fuel ratio control system for an internal combustion engine with an atmospheric pressure responsive correction operation An air-fuel ratio control system for an internal combustion engine, including an oxygen concentration sensor producing an output signal whose level is substantially proportional to an oxygen concentration of the exhaust gas, effects a feedback control of ... | 09/22/1987 |
| 4690121 | Air intake side secondary air supply system for an internal combustion engine with a duty ratio control operation An air intake side secondary air supply system for an internal combustion engine having an air intake side secondary air supply passage and an O2 sensor controls a duty ratio of opening and closing of an open/close valve disposed in the air int... | 09/01/1987 |
| 4677959 | Air intake side secondary air supply system for an internal combustion engine Air intake side secondary air supply system for an internal combustion engine includes first and second secondary air supply passages leading to an intake manifold in which an open/close valve and an air control valve are respectively provided for a propo... | 07/07/1987 |
| 4660533 | Air intake side secondary air supply system for an internal combustion engine Air intake side secondary air supply system for an internal combustion engine includes first and second secondary air supply passages leading to an intake manifold in which an open/close valve and an air control valve are respectively provided for a propo... | 04/28/1987 |
| 4643151 | Fuel control apparatus for an internal combustion engine The combustion, especially a lean mixture, in an internal combustion engine is improved by providing an additional air introducing device. The device comprises an air by-pass pipe introducing additional air independently from the airflow through an intake... | 02/17/1987 |
| 4617891 | Secondary air supply for internal combustion engine A secondary air intake system is used in an internal combustion engine. The system supplies secondary air through a first and a second secondary air passage. The first secondary air passage includes a first vacuum operated air control valve. A vacuum cont... | 10/21/1986 |
| 4617900 | Air-fuel ratio control system for an internal combustion engine having a control characteristic varying with the engine load An air-fuel ratio control system for an internal combustion engine having an oxygen concentration sensor disposed in the exhaust system of the engine is provided with means for detecting a high load operation of the engine and an air-fuel ratio control si... | 10/21/1986 |
| 4604984 | Air intake side secondary air supply system for an internal combustion engine The so called air intake side secondary air supply system for an internal combustion engine includes first and second secondary air supply passages leading to an intake air passage on a downstream side of a throttle valve. The system is provided with a de... | 08/12/1986 |
| 4593663 | Control apparatus for an internal combustion engine having a carburetor An apparatus for controlling the operation of an internal combustion engine having a carburetor which, controls the air-fuel ratio of the air-fuel mixture supplied to the engine in the steady operating condition of the engine on the basis of predetermined... | 06/10/1986 |
| 4586481 | Secondary air supply for internal combustion engine A secondary air intake system is used in an internal combustion engine. The system supplies secondary air through a first and a second secondary air passage. The first secondary air passage includes a first vacuum operated air control valve. The second se... | 05/06/1986 |
| 4579099 | Air intake side secondary air supply system for an internal combustion engine The so called air intake side secondary air supply system for an internal combustion engine, having first and second secondary air supply passages leading to an intake air passage on downstream side of a throttle valve is, provided with a delay device in ... | 04/01/1986 |
| 4572149 | Air/fuel ratio control system for an internal combustion engine An air/fuel ratio control system for an internal combustion engine equipped with a three-way catalytic converter, comprises first and second fluid supply passages for supplying, for example, a secondary air or a supplemental fuel to the engine, and a flow... | 02/25/1986 |
| 4569318 | Secondary intake air supply system for internal combustion engines A secondary intake air supply system for internal combustion engines having two vacuum operated air control valves in parallel in a single secondary air supply line to the intake manifold. One of the air control valves is controlled by a vacuum control va... | 02/11/1986 |
| 4567873 | Air intake side secondary air supply system for an internal combustion engine The so called air intake side secondary air supply system for an internal combustion engine, having first and second secondary air supply passages leading to an intake air passage on downstream side of a throttle valve is provided with a delay device in t... | 02/04/1986 |
| 4559917 | Air intake side secondary air supply system for an internal combustion engine equipped with exhaust gas recirculation system An air intake side secondary air supply system for an internal combustion engine equipped with an exhaust gas recirculation (EGR) system, employing a single source of control pressure for supplying a control pressure both into an air control valve for con... | 12/24/1985 |
| 4558682 | Air intake side secondary air supply system for an internal combustion engine An air intake side secondary air supply system for an internal combustion engine provided with an air/fuel ratio feedback control operation, comprises a pressure responsive air control valve which controls the communication through a secondary air supply ... | 12/17/1985 |
| 4557242 | Air/fuel ratio feedback control system for an internal combustion engine of a vehicle An air/fuel ratio feedback control system for an internal combustion engine of a vehicle includes means for determining an air/fuel ratio on the basis of an output signal of an oxygen sensor, an auxiliary supply passage for supplying the secondary air or ... | 12/10/1985 |
| 4553521 | Intake secondary air supply system for internal combustion engines An intake secondary air supply system for adding air to the intake of an internal combustion engine under certain sensed conditions, such as an excessively rich air-fuel ratio detected by an oxygen sensor in the exhaust system, wherein two separate second... | 11/19/1985 |
| 4541400 | Air intake side secondary air supply system for an internal combustion engine An air intake side secondary air supply system for an internal combustion engine includes an air control valve for controlling the amount of the secondary air and first and second pressure supply passages for respectively supplying a first control pressur... | 09/17/1985 |
| 4503834 | Feedback control system for supplying a fluid to an apparatus operable with the fluid A feedback control system for controlling the amount of a fluid to be supplied to an apparatus such as an internal combustion engine, in accordance with a detected result of the operational state of the apparatus, including a control valve for adjusting t... | 03/12/1985 |
| 4495922 | Air/fuel ratio control system for an internal combustion engine An air/fuel ratio control system for an internal combustion engine having an air induction system equipped with a secondary air passage communicated with an air intake passage and an oxygen sensor disposed in an exhaust system of the engine, the flow of t... | 01/29/1985 |
| 4483308 | Air intake side secondary air supply system for an internal combustion engine equipped with exhaust gas recirculation control system An air intake side secondary air supply system for an internal combustion engine equipped with an exhaust gas recirculation (EGR) system uses a single source of control pressure for supplying a control pressure both into an air control valve for controlli... | 11/20/1984 |
