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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7856951 | Control apparatus and control method for hydraulically driven cooling fan An invention relating to a control apparatus and a control method for a hydraulically driven cooling fan for reducing the peak pressure produced upon reversing the switch position of a switching valve, without stopping an engine, and without greatly modifying existi... | 12/28/2010 |
| 7819094 | Fan system and a method for controlling a fan motor The invention relates to a fan system for a controllably cooling a vehicle internal combustion engine comprising an electric fan motor and a control unit for controlling said fan motor, wherein said control unit controls the fan motor according to a regulation corre... | 10/26/2010 |
| 7640897 | Fan design and method of operating A method of cooling a radiator in an internal combustion engine wherein a plurality of fan assemblies is provided. Specifically, each fan assembly has a housing with an interior containing a fan blade and an exterior having six sides to form a hexagonal perimeter. T... | 01/05/2010 |
| 7506619 | Tunable hybrid bracket assembly A motor vehicle engine and cooling fan arrangement mounted together by means of a tunable bracket assembly. The bracket assembly includes a bracket member, a washer and a bushing. The bracket member has an angled configuration for attenuating vehicular noise, vibrat... | 03/24/2009 |
| 7426909 | Cooling system for a machine A cooling system for a machine is provided. The machine has an operator compartment, a front end, and an engine cooled by a first heat exchanger and mounted within an engine compartment. The engine compartment is positioned behind the operator compartment in relatio... | 09/23/2008 |
| 7418994 | Fan shroud with integral hood seal A one piece fan shroud for a tractor has first and second faces, a frame with top, left and right sides, a bottom, and an upper wall extending from the top of the frame. The upper wall, left and right sides of the fan shroud are dimensioned to match the internal geo... | 09/02/2008 |
| 7415945 | Fluid actuated fan control method for a vehicle A method of controlling a fluid actuated fan drive system (12) for an engine (14) includes determining an engine speed. The speed of a fluid actuated engine-cooling fan (16) is limited when the engine speed is greater than or equal to an engine ... | 08/26/2008 |
| 7395788 | Drill rig and a method for controlling a fan therein In a method for controlling at least one fan (13) for the regulation of the cooling demand of at least two cooling elements (12) included in a drill rig (1), the cooling demand of each one of the cooling elements (12) being determined, th... | 07/08/2008 |
| 7377237 | Cooling system for hybrid power system A cooling system for a hybrid power system that includes an engine employs an engine cooling circuit to deliver coolant to the engine, the engine cooling circuit including a radiator and a main fan to draw air through the radiator. When the hybrid power system furth... | 05/27/2008 |
| 7367293 | Four-stroke engine A four-stroke engine includes a cylinder block, a cylinder head mounted on the cylinder block, multiple cooling fins formed on the cylinder block and the cylinder head, a combustion chamber and an intake port and exhaust port formed in the cylinder head and in commu... | 05/06/2008 |
| 7363886 | Power unit To achieve improved cooling in a power unit, a first fan is coupled with an end of a crankshaft of an internal combustion engine to cool at least a cylinder of the internal combustion engine, and a second fan is coupled with another end of the crankshaft to cool at ... | 04/29/2008 |
| 7363961 | Heat exchanger support structure of motor vehicle and supporting method A heat exchanger support structure has a heat exchanger, a heat exchanger support supporting the heat exchanger, and motor fan units. The heat exchanger support is integrally formed with motor fan shroud portions for directing the air flow caused by motor fans. Elec... | 04/29/2008 |
| 7350485 | Engine cooling fan shroud A fan (16) draws air through a core (14) of a radiator (10) to which coolant from coolant passages in an engine (12) rejects heat. A shroud (28) having first and second parts (30, 32) in axial succession channels air that ha... | 04/01/2008 |
| 7347167 | Method for controlling cooling fans A method for controlling a cooling system for an internal combustion engine having first and second cooling fans is provided, comprising operating the first cooling fan at a first rotational frequency which is greater than a combustion frequency of the internal comb... | 03/25/2008 |
| 7348753 | Fan motor A fan motor includes: a single-phase stepping motor including a stator excited by applying an electric current to a coil to function as a single-phase magnetic pole, and a rotor which has a permanent magnet magnetized to a single phase and rotates as the magnetic po... | 03/25/2008 |
| 7322319 | Fan assembly A fan assembly for an agricultural tractor includes a rotatable fan mechanically driven by a drive shaft coupled to an internal combustion engine. A fan shroud encloses the outer periphery of the fan and is mechanically connected to the engine. A bearing is mounted ... | 01/29/2008 |
| 7320299 | Cooling system for liquid-cooled machines A cooling system for an engine of a lawnmower. The engine has a muffler through which exhaust gases exit the engine and is cooled by a liquid coolant. The cooling system includes a heat exchanger operatively connected to the engine to receive the liquid coolant from... | 01/22/2008 |
| 7318394 | Mount for connecting automotive fan motor to housing The motor of an automotive cooling fan system is attached to a housing by either bayonet mount, screw mount, or axial-snap features on both motor and housing, as well as a cradle structure on the housing. ... | 01/15/2008 |
| 7311067 | Implement A manually operated implement comprising a housing for accommodating a drive motor that drives a tool. A fan wheel is disposed in the housing and is driven by the drive motor. A fan wheel cover covers the fan wheel toward the outer side of the housing. Ribs are disp... | 12/25/2007 |
| 7309207 | Fan shroud structure reinforcement to reduce or eliminate warping and distortion A fan shroud structure (10) is constructed and arranged to carry a fan and motor. The fan shroud structure includes a base (12) and an annular rim (24) extending from the base. The rim defines a generally central opening (26) sized to acc... | 12/18/2007 |
| 7299895 | Engine crankcase An engine crankcase and transmission assembly includes a transmission housing including a forward mounting portion and a crankcase including a rear-mounting portion configured for mounting to the transmission. The rear-mounting portion of the crankcase includes an u... | 11/27/2007 |
| 7300484 | Blower having a carrying frame A blower has a carrying frame provided with a base plate. A fan with a fan housing is mounted on the carrying frame. The fan housing has an intake opening that faces the base plate and is spaced from the base plate. An intake gap is formed between the base plate and... | 11/27/2007 |
| 7287708 | Cooling system control with clustered management services A data processing unit including a first active cooling device configured to respond to a first control signal and a second active cooling device configured to respond to a second control signal. The control signals may be any type of control signal suitable to cont... | 10/30/2007 |
| 7275510 | Startup-time control apparatus and stop-time control apparatus of internal combustion engine, and control methods thereof, and record medium If it is determined that the present engine startup is a high-temperature startup, immediately fuel injection in concert with start of cranking is prohibited. After a delay time elapses following the start of cranking, or when THC | 10/02/2007 |
| 7255189 | Radiator mounting system A radiator mounting system for a skid steer vehicle includes an air box with a front wall having an opening sized to receive engine fan blades, an oil cooler disposed in the air box, a radiator; and a radiator frame supporting the radiator that is hingeably coupled ... | 08/14/2007 |
| 7228823 | Engine-driven vehicle cooling device An engine-driven vehicle cooling device includes an engine room for reception of an engine, a radiator provided within the engine room for cooling down a cooling water circulating through the engine, a cooling fan positioned between the engine and the radiator for b... | 06/12/2007 |
| 7229250 | Control system for variable pitch fan Pitch control of a variable pitch fan is obtained using pulsed pressure. Pitch is varied incrementally either towards or away from full pitch by pulsed application of fluid to a piston used to drive the blades of the fan into or away from full pitch. Reverse pitch i... | 06/12/2007 |
| 7216608 | Engine cooling apparatus It is an object of the invention to provide an engine cooling apparatus that cools an engine according to an operation state of an engine driven work machine. The invention provides an engine cooling apparatus that is adapted to, in an engine drive work machine incl... | 05/15/2007 |
| 7198761 | Vehicle hydrogen fuel system A hydrogen fuel system for a vehicle includes a fuel tank having a fuel inlet for receiving a borohydride fuel into a fuel holding portion of an internal cavity, and a waste inlet arranged to receive the waste liquid generated by an on-board hydrogen reaction proces... | 04/03/2007 |
| 7186088 | Low pressure fan with high-flow A fan 10 has a hub 12, a plurality of fan blades 14 attached to the hub at one end and extending outwardly from the hub, and a ring 18 concentric with the hub and coupled to tips 16 of the blades. Wherein a dimensionless radius (r/... | 03/06/2007 |
| 7182047 | Cooling fan system for automotive vehicle A cooling system for an internal combustion engine mounted within a vehicle includes a radiator for rejecting heat to ambient air and an axial fan mounted within a fan shroud associated with a radiator. The fan has a stationary hub equipped with louvers which may be... | 02/27/2007 |
| 7182164 | Cooling equipment for a motor vehicle, in particular for an excavator Cooling equipment for an excavator, in which a longitudinal axis of a first portion of a delivery duct is substantially parallel to the axis of the excavator, while a longitudinal axis of a second portion of the delivery duct is substantially transverse with respect... | 02/27/2007 |
| 7178579 | Heat exchanger package with split charge air cooler A combined radiator and charge air cooler package comprises a radiator for cooling engine coolant, and a charge air cooler for cooling charge air having upper and lower portions. The upper charge air cooler portion is disposed in overlapping relationship and adjacen... | 02/20/2007 |
| 7174981 | Air intake device for scooter-type two-wheeled motor vehicle A first air cleaner box (25) is provided on one side of a rear wheel (4) above a transmission case (9) of a unit-swinging power train unit (1), whereas a second air cleaner box (26) is provided on the other side of the rear wheel (... | 02/13/2007 |
| 7171927 | Control method for electronically controlled thermostat A control method for an electronically controlled thermostat includes that an actuator is used for cooling-water control of an internal combustion engine and the actuator is capable of optionally varying the valve-opening ratio. An engine control unit computes a tar... | 02/06/2007 |
| 7165514 | Variable speed fan drive A variable fan drive for a vehicle powered by an internal combustion engine is provided. A drive side assembly utilizes a hydraulic actuator to actuate a variable sheave assembly. The variable sheave assembly drives a sheave assembly of a driven side assembly by way... | 01/23/2007 |
| 7165515 | Engine cooling fan shroud A fan (16) draws air through a core (14) of a radiator (10) to which coolant from coolant passages in an engine (12) rejects heat. A shroud (28) having first and second parts (30, 32) in axial succession channels air that ha... | 01/23/2007 |
| 7165442 | Method of detecting a water leak in a locomotive Disclosed herein are methods for detecting a water leak in a locomotive engine cooling system comprising numerous components, each being a potential source of leakage of water. The method typically comprises performing at least one inspection providing an indication... | 01/23/2007 |
| 7159409 | Method and apparatus for controlling the load placed on a compressor A method of operating a vapor compression system, the vapor compression system defining a closed fluid circuit in which a refrigerant is circulated and having operably disposed therein, in serial order, a compressor, a high pressure heat exchanger, an expansion devi... | 01/09/2007 |
| 7161315 | Self dust-off apparatus and method thereof A self dust-off apparatus includes a fan and a controller. The fan, which can be driven to rotate clockwise or counterclockwise, is installed in a projector. The controller is employed to direct the rotational direction (clockwise or counterclockwise) of the fan. In... | 01/09/2007 |
