...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor 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 |
| 7369230 | Apparatus and method for measuring particulate flow rate An apparatus for measuring the rate of flow of a volume of particulate material comprising a transparent tube of known cross-sectional area, means for supplying a flow of particulate material through the transparent tube, and an optical signal sensor for receiving a... | 05/06/2008 |
| 7287595 | Electric-hydraulic power unit The present invention is directed to an electric-hydraulic power unit. In one illustrative embodiment, the power unit comprises a body having a movable pressure barrier positioned therein, the movable pressure barrier defining first and second chambers therein, a co... | 10/30/2007 |
| 7287540 | Method for introducing drag reducers into hydrocarbon transportation systems Disclosed is a method of reducing drag in a fluid stream. The method includes admixing the components of a drag reducer to form an incipient drag reducer and injecting the incipient drag reducer into the fluid stream wherein the drag reducer components are admixed a... | 10/30/2007 |
| 7150807 | Rotary evaporation with variable dosage metering Method and system for evaporating at least one substance. During at least one dosing phase (TG) a predefined or predefinable quantity of a product (M) which contains at least one substance to be evaporated is imported via a feed system (7, 14, 17, 33, 36) int... | 12/19/2006 |
| 6904920 | Method and apparatus for cleaning containers A machine for cleaning containers such as flat media carriers has inside and outside arrays of nozzles arranged to spray a cleaning solution onto containers supported on a spinning rotor in a chamber. The cleaning solution, a mixture of water and a detergent or surf... | 06/14/2005 |
| 6886639 | High flow foam system for fire fighting applications A fire-fighting system in which multiple water discharge lines each have associated with them a foam concentrate delivery line where each of the foam concentrate delivery lines are supplied from a foam concentrate tank by way of a positive displacement pump having t... | 05/03/2005 |
| 6609534 | Multi-additive injection system for aviation fuel A multi-additive injection system for injecting required amounts of different additives to flowing fuel in a fuel line (6) comprises a number of additive injection sub-systems (1, 2, 3 and 4). Each sub-system includes a source of additive (7), a pump (13)... | 08/26/2003 |
| 6543469 | System for continuously manufacturing a composite preform A system for mixing and dispensing a structural foam formed from two or more component foam parts mixed together in a predetermined mass ratio. At least a first one of said component parts is pre-mixed with a blowing agent and maintained under pressure. T... | 04/08/2003 |
| 6418954 | System and method for dividing flow A system for dividing a single flow of gas into two or more secondary flows of known, precise values, without requiring a high upstream pressure. The system includes an inlet for receiving the single gas flow, and first and second flow lines connected to ... | 07/16/2002 |
| 6253779 | Blending system and method using an auxiliary measuring device A system for blending two-blend components to form a blended final product including a first supply line for supplying a first blend component at a first flow rate and a second supply line for supplying a second blend component at a second flow rate. The ... | 07/03/2001 |
| 6142162 | System and method for odorizing natural gas A method for odorizing natural gas in the pipeline utilizes bypass piping in conjunction with a liquid odorant storage tank. The bypass line causes a precisely known volume of bypass gas, saturated with odorant, to enter the gas line at regular intervals ... | 11/07/2000 |
| 6000468 | Method and apparatus for the downhole metering and control of fluids produced from wells In a broad aspect, the invention is a method and apparatus for the downhole metering and control of fluids injected into a subterranean formation, and includes: a housing sealably connectable to a well tubing; a turbine meter disposed in the housing which... | 12/14/1999 |
| 5878772 | Tank truck fuel delivery system having a selective dye injection system A fuel delivery system for use in combination with a fuel delivery truck, said system having a dye additive injector for selectively adding a predetermined amount of dye into a main fuel delivery line, comprising: a dye additive storage tank, having an in... | 03/09/1999 |
| 5746241 | Precision dispensing system A microprocessor controlled precision dispensing system (PDS) introduces an additive into a flowing liquid. A fixed amount of additive is introduced per unit volume of the liquid. The fixed amount can be changed by the user and can be varied as a function... | 05/05/1998 |
| 5722449 | Arrangement in connection with a gas mixer An arrangement in connection with a gas mixer, which is arranged to form a mixed gas of oxygen and another gas to be mixed with it. To provide a simple and reliable arrangement, before the mixed gas is formed the oxygen is arranged to be supplied through ... | 03/03/1998 |
| 5609180 | Liquid alkali system for fiber reactive dyeing Liquid caustic compositions for use in reactive dyeing, having total and alkaline activities approximating the total and alkaline activities of a predetermined liquid caustic composition are prepared by providing a source of water; providing a container o... | 03/11/1997 |
| 5537914 | Beverage blending and proportioning An apparatus is provided for improving quality and increasing syrup yield within a beverage blending system. The apparatus and the associated method are adaptable to existing proportioning and blending systems or the appropriate control and measurement eq... | 07/23/1996 |
| 5494112 | System for introduction of concentrated liquid chemical foamant into a water stream for fighting fires A fire fighting system introduces a liquid chemical foam concentrate into a water stream. The system may incorporate either or both of a hydraulic motor driven pump under control of a microprocessor-based hydraulic valve driver and an electric motor drive... | 02/27/1996 |
| 5490766 | Precision small displacement fluid pump A fluid pump for displacing a small, precise volume of fluid for each pump stroke, particularly where the fluid to be displaced is a liquid containing dissolved gas. The precise volume of fluid to be displaced is adjustable to any selected amount up to th... | 02/13/1996 |
| 5490726 | Apparatus for proportioning two components to form a mixture A method and apparatus is provided for combining two components to form a coating material formulation in which one of the components is a "high volume" component comprising a resin including supercritical fluid as a diluent, and the other of the componen... | 02/13/1996 |
| 5476115 | Automatic gas blending system A tracer gas and a carrier gas, such as helium and nitrogen, are blended using flow restrictive orifices in the flow lines for each gas. A process controller is used for automatic adjustment of a control valve in the tracer gas flow line in response to va... | 12/19/1995 |
| 5441072 | Fuel additive metering system A fuel additive system is disclosed which comprises a sensing device for determining the flow rate of fuel into the system and for generating a signal in dependence upon the fuel flow rate, a control system for conditioning the signal to produce a proport... | 08/15/1995 |
| 5407267 | Method and apparatus for forming and dispensing coating material containing multiple components A method and apparatus for combining multiple components to form a coating material formulation in which one of the components is a resin, another component is a supercritical fluid employed as a fluid diluent, and, preferably, the third component is a ca... | 04/18/1995 |
| 5368059 | Plural component controller This invention is useful in a plural component system which utilizes sequential metering of multiple fluids. In such a system for dispensing component fluids such as paint, the controller dispenses a given amount of a first fluid, and then part way throug... | 11/29/1994 |
| 5247957 | Modular lubrication multiple concentration control apparatus Method and apparatus for including within a carrier fluid to be utilized in different areas at least one additive in a constant predetermined concentration and at least one other additive in varying concentration depending on the particular area of use. F... | 09/28/1993 |
| 5218988 | Liquid feed system A system for controllably metering a first liquid with a second liquid includes a venturi injector unit and a peristaltic pump. A source of pressurized first liquid is coupled to the input port on the venturi injector unit, while the peristaltic pump coup... | 06/15/1993 |
| 5143257 | System for proportioned liquid dispensing A system for proportional liquid dispensing of two liquids, the first of which can comprise the main flow drinking water supplied to livestock or poultry and the second of which can comprise controlled quantities of medication or nutrient to be introduced... | 09/01/1992 |
| 4821761 | Closed loop pump control system A system for controlling the output flow rate of a second pump to proportionately track the output flow rate of a first pump in which the first pump produces an electrical signal at each successive stroke thereof. An electrical circuit produces an electri... | 04/18/1989 |
| 4747272 | Frozen comestibles with improved over-run control A system is provided for making frozen comestibles, and the like, having an over-run. The system comprises a swept surface heat exchanger which includes a manifolded cylinder in which is disposed a tube having a dasher. Refrigeration means are connected t... | 05/31/1988 |
| 4642222 | Polymer feed system A polymer feed system comprises at least one mixing and activating apparatus having a water inlet, a polymer inlet and an outlet and constructed and arranged to dilute and fully activate a polymer. The polymer feed system further comprises a conduit for c... | 02/10/1987 |
| 4554939 | Metering apparatus A mobile metering apparatus is provided for metering into a liquid stream or flow an agent which is to be metered or dosed in a quantitative proportional relationship. The metering apparatus contains liquid meter through which passes the liquid flow and a... | 11/26/1985 |
| 4354688 | Hydraulic circuit for a tractor drawn implement having remote variable height selector An implement having a rotary flow divider controlling fluid to and from at least two independent hydraulic rams for raising and lowering the implement in a level manner. A counter monitors the revolutions of the flow divider and actuates an electric circu... | 10/19/1982 |
| 4337786 | Variable rate fertilizer injection system A variable rate injection system includes a paddle wheel flowmeter which produces a pulse train proportional to the amount of liquid flowing through an irrigation line. An accumulator circuit totalizes the pulse train and produces a triggering pulse to a ... | 07/06/1982 |
| 4335737 | Proportioning and mixing immiscible liquids Disclosed is apparatus for dispersing water within a flowing stream of fuel oil, to produce an oil and water emulsion which improves combustion efficiency by as much as 15 percent. The apparatus includes a pressurized supply of water, a differential press... | 06/22/1982 |
| 4327759 | Slurry producing apparatus Apparatus and method for producing a slurry. The apparatus includes a slurry reservoir, a closed circuit and a pump for circulating slurry from the reservoir through the closed circuit and back to the reservoir. Means are provided for introducing both par... | 05/04/1982 |
| 4324294 | Chemical injection control system for fire fighting A system for injecting chemicals into a fire fighting system of the type using a plurality of water hoses and having a source of water and a source of chemicals. A servo motor system is connected to automatically meter a certain ratio of chemicals into th... | 04/13/1982 |
| 4246969 | Chemical injection system for fire fighting A system for injecting chemicals into a fire fighting system of the type using a plurality of water hoses and having a source of water and a source of chemicals. A servo motor system is connected to automatically meter a certain ratio of chemicals into th... | 01/27/1981 |
| 4199303 | Feeder for apparatus for ejecting a mixture of a plurality of liquids A feeder for apparatus for ejecting a mixture of liquids, e.g. urethane foam, comprises a pair of swash plate proportioning pumps one individual to each of the liquids, e.g. resin and isocyanate, each proportioning pump being fed by a gear pump from a sup... | 04/22/1980 |
| 4176672 | Mixing apparatus for a first liquid component with at least one additional component An apparatus for mixing a first liquid component with at least one additional liquid component. A fluid flow-through measuring device in the form of a gear pulser is connected to a supply line for a first component and generates a number of electrical pul... | 12/04/1979 |
| 4073304 | System for calibrating a pump A system for calibrating the flow rate of a pump, and especially designed for a pump which is normally used in a system to blend highly vaporous and odorous fluids, in which the blending fluid discharged from the pump is diverted from its normal flow stre... | 02/14/1978 |