Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 4003969 | Carburetor system for internal combustion engine A carburetor system for a gasoline engine wherein the carburetor functions are accomplished through evaporation in a chamber external to the carburetor with additional benefits afforded through the use of a humidification chamber, the total process utiliz... | 01/18/1977 |
| 3999525 | Apparatus for the cold starting and warming run of spark plug-ignited internal combustion engines In each fuel injection valve forming part of a fuel injection apparatus and associated with an internal combustion engine, there is disposed an electric heater which transmits heat to the fuel by contact-type heat exchange. The heat output of each heater ... | 12/28/1976 |
| 3989019 | Fuel heating apparatus A self contained fuel heating apparatus for the heating of fuel for an internal combustion engine to raise the temperature thereof prior to the passage of the fuel into the engine for combustion. The fuel heating apparatus includes a tank defining a chamb... | 11/02/1976 |
| 3986486 | Reduction of hydrocarbons emissions in carbureted engines A device for attachment to a carbureted automobile engine for improving its performance, both by reduction of pollutants by obtaining more complete burning of the fuel and by obtaining better gasoline mileage, especially in city and other stop-start drivi... | 10/19/1976 |
| 3980055 | Fuel saver and pollution control device An apparatus for improving fuel economy and abating exhaust gas pollution for four cycle, reciprocating piston, internal combustion engines or rotary engines, including a water reservoir, a heat exchanger for converting water from the water reservoir to s... | 09/14/1976 |
| 3978823 | LPG burning internal combustion engine, especially Otto engine An internal combustion engine, especially Otto engine, which utilizes fuel gas supplied in a low-temperature liquefied state for the combustion process. Heat exchange means are provided for effecting a heat exchange between the intake combustion air and t... | 09/07/1976 |
| 3968775 | Fuel system for internal combustion engines A fuel system for an internal combustion engine of the piston type vaporizes a liquid fuel and water and mixes the resulting gaseous fuel and water vapor with air in a metering valve which communicates with the internal combustion engine. Heat from a sepa... | 07/13/1976 |
| 3964458 | Service vehicle for manhole operation A wheeled service vehicle for manhole operation adopted for towing and comprising a chassis frame mounting a variety of equipment, the vehicle and equipment all being self-contained and including a prime mover with several pieces of equipment driven there... | 06/22/1976 |
| 3963013 | Air and fuel charge forming device A fuel and air induction system is provided for an internal combustion engine and includes a conventional air and fuel mixing carburetor for starting the engine when cold. However, when operating temperatures of the engine are obtained the air and fuel in... | 06/15/1976 |
| 3957024 | Device for vaporizing liquid fuel A liquid containing heat pipe for vaporizing uncombusted fuel is disclosed having a liquid transfer storage zone and optionally separate heating means disposed to heat only part of the liquid in said pipe.... | 05/18/1976 |
| 3955546 | Fuel heat generator for internal combustion engines A system for gasifying a mixture of fuel, air and recycling exhaust gases for induction into an internal combustion engine, comprising means interconnected between extant fuel pump and engine carburetor to preheat the mixture by bleeding heat from a heat ... | 05/11/1976 |
| 3951124 | Pollution reducing and fuel saving device An auxiliary device for attachment to internal combustion engines for the purpose of reducing the objectionable polluting constituents of the exhaust gases therefrom and reducing the amount of fuel consumed. The device functions to reduce pollution by red... | 04/20/1976 |
| 3945352 | Fuel vaporization and injection system for internal combustion engine An internal combustion engine having characteristics that lie between the Otto cycle and the Diesel cycle, plus the ability to burn any type of liquid hydrocarbon fuel. Air is compressed to the peak of the compression stage, at which point the high-pressu... | 03/23/1976 |
| 3935849 | Fuel vaporizing device for an internal combustion engine or gas turbine A device is disclosed for vaporing liquid fuel before introduction into a combustion chamber comprising a heat pipe containing heat transfer fluid communicating with additional fluid external to the heat pipe.... | 02/03/1976 |
| 3935901 | Diesel fuel line heater An arcuate chamber, fitted against a portion of a replaceable fuel line filter for a diesel engine includes an inner high heat transfer material adjacent the filter element, inlet and outlet lines for the chamber for passing engine exhaust gases, an exhau... | 02/03/1976 |
| 3933135 | Electronic controlled manifold injection system This invention concerns an electronic controlled manifold injection system for internal combustion engines which provides a completely symmetrical flow of the air/fuel mixture to both ends of the engine, vaporizes the fuel by the application of heat to pr... | 01/20/1976 |
| 3931800 | System to convert liquid fuel to gas A system to convert liquid fuel for an internal combustion engine to a gaseous state for injection while in the gaseous state into the internal combustion engine which includes a heater in heat exchanging relation with the exhaust of an engine and a fuel ... | 01/13/1976 |
| 3931801 | Fuel vaporizer and control system Exhaust gases in an internal combustion engine are circulated into a chamber containing liquid fuel, the exhaust gases bubbling through the fuel to heat and vaporize the fuel prior to passing the fuel for mixing with air at the entrance to the intake mani... | 01/13/1976 |
