(under the class definition) Devices not provided for in any of the preceding subclasses or in other classes including (1) the combination of an internal-combustion engine with means for supplying external energy to heat the engine, or (2) the combination of an internal combustion engine and means supplying external energy to heat some part or adjunct of the engine such as a radiator, or (3) internal-combustion engines having means using heat from one part to heat another part by exchanging heat between the parts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
41.01+, for internal combustion engine cooling systems and devices and see notes thereto. Such systems and devices including means to heat the radiator and/or other parts of the cooling system are classified in this subclass (142.5).
179, for starting devices there provided for combined with
heating means where some starting feature other than heating is claimed.
196, for internal combustion engine lubricators there provided for combined with means for heating and/or cooling the lubricant or lubricator only, including such devices using the engine cooling fluid for lubricant or lubricator heating and/or cooling.
543+, for charge-forming devices there provided for combined with heating means. SEE OR SEARCH CLASS
122, Liquid Heaters and Vaporizers, particularly
23, and see notes thereto for field of search for fluid fuel heaters not in combination with an internal-combustion engine.
126, Stoves and Furnaces,
19.5, for ovens using rejected heat from internal combustion engines; 93, for heating stoves having detachable hoods which are placeable over internal-combustion engines; 350, for liquid heaters and vaporizers there provided for.
165, Heat Exchange,
51+, for an engine installed heat exchanger that does not include significant internal-combustion engine structure.
184, Lubrication,
6, and 104.1+, for lubricators combined with heating means there provided for.
237, Heating Systems,
2, 5, 12.3, and 12.4+ for vehicle heating systems using rejected heat of internal combustion engines.
290, Prime-Mover Dynamo Plants, particularly 2, for prime mover dynamo systems producing heat, and subclass 38, for prime mover dynamo systems having an electric motor for starting the prime mover.
392, Electric Resistance Heating Devices,
311+, for electric heaters for heating fluids not limited to an internal-combustion engine combination.
432, Heating,
230, for heating apparatus mounted or installed on an internal-combustion engine element.
