The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7931004 | Oil sensor placement structure in engine In an engine, an oil level sensor (47) provided in a bottom part of an oil pan (15) storing engine oil so as to stand vertically upright is placed between a mutually parallel pair of balancer shafts (27, 28) housed in a balancer housing (21 | 04/26/2011 |
| 7490586 | Automatic engine oil changer/recycler system A vehicle mounted oil recovery system uses a conduit to transport oil from an engine lubricating system of the vehicle to a retort system, mounted upon the vehicle. The retort system distills the transported oil, through vaporization, into individual components. The... | 02/17/2009 |
| 7475665 | Capacitance-based fluid level sensor A fluid level sensor comprises a parallel plate capacitor coupled to an integrated circuit located in the bottom of an oil pan or other receptacle in which fluid level is being sensed. The sensor is preferably mounted on a drain plug for the receptacle. It includes ... | 01/13/2009 |
| 7444978 | Adjusting device, in particular for a motor vehicle In an adjusting device, in particular for a motor vehicle, which includes at least one adjusting unit for adjusting the pressure of a pressure medium in accordance with at least one parameter, the adjusting unit includes a first and a second throttle point having di... | 11/04/2008 |
| 7387101 | Oil pan for engine having a shield member covering an air hole of an oil sensor An oil level sensor for detecting an oil level is arranged in an engine oil pan. The oil level sensor includes a mounting section and a sensing section. An air hole is formed at an upper end of a cover member of the sensing section. The air hole is surrounded by a t... | 06/17/2008 |
| 7373914 | Lubricating apparatus for internal combustion engine A lubricating apparatus for an internal combustion engine is provided in which an oil discharge passage, extending from the oil pump, is provided for straddling the oil pump case and the tank body. A direction of the extension of the oil discharge passage is changed... | 05/20/2008 |
| 7363905 | Procedure to operate a combustion engine in the event of damage and a device to perform the procedure Procedure to operate a combustion motor in the event of damage, whereby the thermoelectric voltage of a lubricant interruption on parts moving relative to each other and made of different, electrically conducting materials, is used to initiate an alarm signal, in th... | 04/29/2008 |
| 7340896 | Method for regulating the turbine power of a turbo in an internal combustion engine A method for regulating the turbine power of a turbo in an internal combustion engine. The internal combustion engine comprises an exhaust-driven turbine with guide elements for guiding the exhaust gas flow to the turbine wheel, the orientation of the guide elements... | 03/11/2008 |
| 7334557 | Engine lubrication system for supplemental oil filtering and controller based activation of a prelubrication pump An engine lubrication system comprising a pump for supplying oil to an engine, a filter for purifying the oil and at least one sensor for discerning parameters of the engine lubrication system and generating signals indicative thereof. The engine lubrication system ... | 02/26/2008 |
| 7331171 | Control system and method for internal combustion engine A control system for an internal combustion engine that executes post injection, which is capable of accurately estimating the state of dilution of engine oil, thereby properly controlling the amount of oil dilution such that it does not become too large. In an inte... | 02/19/2008 |
| 7322800 | System and method of providing hydraulic pressure for mechanical work from an engine lubricating system The method provides hydraulic pressure for mechanical work from an engine lubricating system in an internal combustion engine by supplying oil to an engine lubrication gallery for lubricating the engine and to at least one variable oil demand accessory. Each of the ... | 01/29/2008 |
| 7316541 | Engine-powered air compressor with a controller for low oil condition An air compressor with an internal combustion engine having an engine oil sump, a compressor driven by the internal combustion engine and having a compressor oil sump, and a controller coupled to the internal combustion engine. The controller is configured to halt t... | 01/08/2008 |
| 7308882 | Oil feeding system of engine An oil feeding system of an engine equipped with a transmission configured to change a rotational speed of rotation of a crankshaft and to output the rotation, including an oil pump configured to be driven in cooperation with the rotation of the crankshaft, an oil p... | 12/18/2007 |
| 7287758 | Cylinder head gasket with an oil drainback tube fastener A gasket includes at least one gasket layer. The gasket layer has a push rod or cam timing chain opening formed therein. A clip is secured to the gasket layer and positioned within the push rod or timing chain opening. The clip selectively receives and positions an ... | 10/30/2007 |
| 7275533 | Pressure controller for a mechanical draft system Systems and method for controlling the flow of air through a mechanical draft system are disclosed herein. A pressure controller for controlling air pressure comprises an appliance controller configured to control the operation of a plurality of appliances, an intak... | 10/02/2007 |
| 7265455 | Alternating voltage output apparatus and vehicle including such alternating voltage output apparatus A control device controls first and second inverters such that alternating voltage is generated across neutral points of first and second motor generators. When the value of a signal representative of the remaining amount of fuel in a fuel tank becomes lower than a ... | 09/04/2007 |
| 7263964 | Oil sensor mounting structure Of a sensing part and a mounting part of an oil level sensor mounted to a sensor mounting opening at a bottom portion of an oil pan of an engine, an undersurface of the mounting part exposed to the outside of the oil pan is located above the lowest part of the oil p... | 09/04/2007 |
| 7249530 | Oil consumption simulating device An engine lubrication system simulating device is provided, having a reservoir configured to contain engine oil. The simulating device may also include an agitation device configured to agitate oil in the reservoir. In addition, the simulating device may include a c... | 07/31/2007 |
| 7243640 | Fuel flow path module in inline pump type fuel injection apparatus To make a length in a horizontal direction of a vapor return joint small, thereby improving an assembling property of a fuel flow path module to a fuel tank, a vapor inflow hole, a fuel outflow hole and a regulator fuel inflow hole are provided in a fuel tube portio... | 07/17/2007 |
| 7228837 | Motorcycle oil filtering system A filtering system provides an oil flow to a filter carried by a support offset from a down tube of a motorcycle frame. An engine mounted bracket directs oil flow to be filtered to a cap assembly which is attached to an oil conduit. A threaded tubular member of the ... | 06/12/2007 |
| 7219636 | Variable valve timing control system of internal combustion engine A variable valve timing control system of an internal combustion engine includes a hydraulically-operated phase converter disposed between a sprocket and a camshaft, and having a phase-advance hydraulic chamber and a phase-retard hydraulic chamber for changing an an... | 05/22/2007 |
| 7216473 | Turbojet engine lubrication system A lubrication system for an expendable gas turbine engine (20) having a rotatable shaft (26) is provided. Bearings (28) journal the shaft (26) for rotation about an axis. The system includes a vessel (46) for containing lubricating... | 05/15/2007 |
| 7207417 | Method of changing engine oil A method for converting an engine from petroleum based engine oil to synthetic oil, whereby substantially all petroleum based engine oil is removed prior to replacement with synthetic engine oil. ... | 04/24/2007 |
| 7178499 | Locomotive engine governor low oil trip reset An EMD locomotive engine low oil governor reset system, the governor having a low oil reset plunger which moves from an operating position to a tripped position out of a side of the governor when a low oil condition has been sensed and has initiated shut down of the... | 02/20/2007 |
| 7168408 | Control device of internal combustion engine An upper level sensor or the like is used to detect an amount of lubricant in an oil pan of an engine. When the amount of lubricant exceeds a prescribed value (step ST1), that is, when lubrication of a sliding portion such as a bearing is insufficient due to ... | 01/30/2007 |
| 7158039 | Liquid leakage sensor and liquid leakage detecting system Among plural liquid leakage sensors placed at the lower most portion of a system such as a floor surface, a leaked liquid storing portion, etc., an error-activated location of the sensor can be easily identified uniquely when the sensor is detecting any abnormality.... | 01/02/2007 |
| 7152712 | Control moment gyro spin bearing lubricant delivery system and method A lubrication medium supply system and method for delivering lubricant to, for example, the spin bearings of a control moment gyro (CMG), includes a reservoir, a motor, and a valve. A lubrication medium is placed within the reservoir, and the motor, which is coupled... | 12/26/2006 |
| 7150249 | Lubrication system for two-cycle engine An engine has a lubrication system that lubricates the engine with lubricant. The lubrication system incorporates a lubrication pump that periodically pressurizes the lubricant toward the engine. An engine speed sensor and a throttle valve position sensor are provid... | 12/19/2006 |
| 7143867 | Electronic oil level detection and replacement system An oil level monitoring and replenishment system for use with an internal combustion engine having an oil sump. The system as a sensor which continuously measures the sump level in the reservoir for holding a quantity of oil to be used in replenishment of the sump. ... | 12/05/2006 |
| 7137924 | Control system for hybrid vehicles A control system for a hybrid vehicle, in which an engine is connected to a first motor generator and to an output shaft through a power distributing mechanism, in which a second motor generator is connected to the output shaft through a transmission wherein a torqu... | 11/21/2006 |
| 7134282 | Turbo system and method of installing A turbocharger system for a combustion engine and method of installing a turbocharger system includes a turbocharger having an oil inlet and an oil outlet configured for being coupled to an oiling system. An oil pump is connected to the oil outlet of the turbocharge... | 11/14/2006 |
| 7124730 | Oil catching system for an internal-combustion engine, particularly for an opposed-cylinder engine An oil catching system for an internal-combustion engine, particularly for an opposed cylinder engine, has an oil catching housing arranged below a crankcase. An oil suction space is provided in the oil catching housing from which the lubricating oil is transported ... | 10/24/2006 |
| 7118435 | Outboard motor A system for replenishing a lubricant pan with the lubricant comprises a lubricant tank provided separately from the lubricant pan. A lubricant replenishing pump is provided in the lubricant tank for replenishing the lubricant pan with the lubricant. A lubricant lev... | 10/10/2006 |
| 7114482 | Engine lubrication circuit including two pumps A lubrication pump coupled to the engine is sized such that the it can supply the engine with a predetermined flow volume as soon as the engine reaches a peak torque engine speed. In engines that operate predominately at speeds above the peak torque engine speed, th... | 10/03/2006 |
| 7089905 | Lubricating structure for an engine A lubricating structure for an engine includes a crankcase for supporting a crankshaft formed from a pair of case halves coupled to each other along a mating plane extending along a plane perpendicular to an axial line of the crankshaft. An oil reservoir in a lower ... | 08/15/2006 |
| 7059450 | Automatic lubrication system An automatic lubrication system for a vehicle, comprising a pump assembly having a plurality of outlet ports, a motor operable to drive the pump assembly, and a cartridge that is attachable to the pump assembly to provide a source of lubricant to the pump. The cartr... | 06/13/2006 |
| 7047931 | Control device for at least one consumer, such as a camshaft adjuster, automatic transmission and the like, of motor vehicles A control device for at least one consumer of a motor vehicle, having an engine and at least one pump for supplying a medium via at least one pressure line to the at least one consumer, is configured to supply the medium to the at least one consumer before the engin... | 05/23/2006 |
| 7040276 | Drive shaft coupling device An oil supply means is provided to supply the center portion of a rotating part of an Oldham coupling with oil. The oil spreads from the center of rotation to the outside of the Oldham coupling and makes it possible to prevent the Oldham coupling from wearing. A rec... | 05/09/2006 |
| 7036480 | Engine lubrication system A lubrication system for an engine includes a sump for lubricant, a pump to pump lubricant along a lubricant feed line to lubrication positions within the engine, and a lubricant conditioner, and wherein the pump is an electrically driven pump which is controlled by... | 05/02/2006 |
| 7032628 | Mobile prepressurized diaphragm type fluid storage tank A mobile prepressurized fluid storage tank is disclosed where the compressed air, completely separated from the fluid by a flexible diaphragm, dispenses the fluid under pressure, e.g., into an engine. The prepressurized diaphragm-type fluid storage tank is initially... | 04/25/2006 |