Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 4064844 | Apparatus and method for successively inactivating the cylinders of an electronically fuel-injected internal combustion engine in response to sensed engine load In a multi-cylinder fuel injection type internal combustion engine, apparatus is provided for successively inactivating one or more cylinders of the engine by inhibiting the injection pulses supplied to the fuel injection units in response to a sensed eng... | 12/27/1977 |
| 4064861 | Dual displacement engine A system is disclosed for use in connection with a conventional Otto or four cycle, multi-cylinder, internal combustion engine with the system being adapted to selectively disable half of the operating cylinders of the engine whereby substantial fuel econ... | 12/27/1977 |
| 4061055 | Fuel injection control system for an internal combustion engine of a vehicle A control system which controls the number of fuel-injected cylinders is used with an electronic type of automatic transmission system and includes compensating means or an engine operating parameter changing unit for changing a parameter fed to the trans... | 12/06/1977 |
| 4061123 | Engine de-compression mechanism An engine de-compression mechanism in which the valves to one or more of the cylinders are locked in open position to prevent fuel from being drawn into the engine cylinder during the normal intake stroke and to prevent compression back pressure on the pi... | 12/06/1977 |
| 4050435 | Valve control for cylinder cutout system A fluid-operated internal combustion engine cylinder cutout device selectively operable to function as a rigid extension of a valve pushrod, as a deactivating means between the pushrod and its respective valve, or as a fluid jack means for holding the val... | 09/27/1977 |
| 4040395 | Engine selectively utilizing hybrid thermodynamic combustion cycles An engine is disclosed incorporating a block means defining a plurality of cylinder chambers for containing reciprocating pistons that are coupled to provide output drive power. Means are incorporated in the block means for valving the cylinder chambers t... | 08/09/1977 |
| 4037571 | Multi-cylinder internal combustion engine A multi-cylinder engine comprising at least a first cylinder group and a second cylinder group. The first cylinder group is connected to a first intake manifold having a first carburetor with a first throttle valve. The second cylinder group is connected ... | 07/26/1977 |
| 4024850 | Internal combustion engine monitor system A sensing means is provided to monitor combustion of fuel and air supplied to an internal combustion engine, for example by sensing ignition pulses, combustion pressure, or cylinder temperature. Signals, as sensed, are evaluated and if one of these signal... | 05/24/1977 |
| 4023358 | Internal combustion engine reactor protective control system A sensing means is provided to monitor combustion of fuel and air supplied to an internal combustion engine, for example by sensing ignition pulses, combustion pressure, or cylinder temperature. Signals, as sensed, are compared and if one of these signals... | 05/17/1977 |
| 4022164 | Electric idle for internal combustion engine An internal combustion engine is controlled by a throttle valve which can close completely to prevent fuel flow to the engine. There is no idle jet below the throttle valve. When the engine is at idle speed, the starter motor is energized to maintain engi... | 05/10/1977 |
| 4019479 | Apparatus for modifying an internal combustion engine A device for splitting the operation of a multicylinder internal combustion engine to allow the use of one group of the cylinders during a first phase of operation and the use of both the first and second group of the cylinders during a second phase of op... | 04/26/1977 |
| 4018204 | Fuel saving apparatus for multiple cylinder internal combustion engines Fuel saving apparatus for controlling the supply of fuel to one or more selected cylinders of a multi-cylinder internal combustion engine comprises a remotely and independently controlled fuel saving valve operably positioned to provide selective communic... | 04/19/1977 |
| 4015428 | Fuel control apparatus for an automobile engine equipped with an electronically controlled fuel injection system and an exhaust gas purifying system An improved fuel control apparatus for installation on an automobile engine equipped with an electronically controlled fuel injection system and a catalytic exhaust gas purifying system to prevent excess uncombusted fuel from being carried over into the c... | 04/05/1977 |
| 4007590 | Catalytic convertor warming up system A fuel injection system supplies fuel to only selected cylinders until the catalytic converter is heated sufficiently.... | 02/15/1977 |
| 3985109 | Breakerless ignition system for an internal combustion engine A breakerless ignition system for an internal combustion engine comprising an ignition power supply, a capacitance discharge type ignition circuit including a capacitance, an ignition coil and a first semiconductor switching means to discharge the capacit... | 10/12/1976 |
| 3974810 | Fuel injection pump In a fuel injection pump having two kinds of plungers rotatably displaced by a common rack, each of one kind of plungers ceasing fuel supply and each of the other kind of plungers supplying fuel during idling of an engine, a measuring screw-like groove of... | 08/17/1976 |
| 3963379 | Convertible engine-air compressor apparatus for driving a vehicle A vehicle is provided with an engine which is adapted to serve as an air compressor. Air supply apparatus is provided for interrupting the supply of fuel to the engine and for supplying air to the engine. Compressed air from the engine is delivered to an ... | 06/15/1976 |
| 3958900 | Convertible engine-air compressor apparatus mounted on a vehicle for driving said vehicle A combination engine and air compressor apparatus in which an engine action and an air compression action are changed over to each other by changing valve timing of inlet and exhaust valves.... | 05/25/1976 |
| 3955363 | Combustion engine with at least one exhaust gas cleaning arrangement In a motor vehicle having a combustion engine including combustion spaces, such as pistons, comprising fuel dosing device, an exhaust gas conduit system and an exhaust gas cleaning arrangement associated with the exhaust gas conduit system, a temperature ... | 05/11/1976 |
| 3945367 | Engine modification A simple and inexpensive method for converting an N-cylinder automobile engine to an (N/2)-cylinder engine which requires only minor modifications to the basic engine structure. Every other cylinder in the firing order is deactivated by removing adjacent ... | 03/23/1976 |
| 3941113 | Multicylinder heat engines A heat engine comprises at least one recycling cylinder having a relatively high compression ratio, at least one motive cylinder having a relatively low compression ratio and means for passing exhaust gases from said at least one motive cylinder to said a... | 03/02/1976 |
