Did You Know...
...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!
PatentStorm News
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 |
| 7178634 | Device for supplying lubricant to several lubrication points on machine parts A device for supplying several lubrication points on machine parts with a lubricant, comprising an electromechanical lubrication dispenser and a distribution device coupled to a lubricant outlet of the dispenser. The distribution device has a housing, a cylindrical ... | 02/20/2007 |
| 6571918 | Liquid pump and metering apparatus An apparatus for delivering metered amounts of a first fluid, such as a lubricating oil, to a remote location comprises a metering plate coupled to a drive for moving the metering plate between a first position in which a fluid receptacle in the metering ... | 06/03/2003 |
| 5924400 | Portable engine In a portable engine using a fuel gas within a cassette type gas bomb or canister, an engine body is provided with a lubricating oil supply for supplying a lubricating oil from an air intake port side. The supply means has a fixed quantity discharging typ... | 07/20/1999 |
| 5597051 | Lubricating oil supply unit for two-cycle engines A lubricating system for a machine such as a two-cycle internal combustion engine including a reciprocating pump that pumps a finite amount of lubricant during a single pumping stroke and a stepper motor for operating the pump through incremental phases o... | 01/28/1997 |
| 5239957 | Two cycle engine for small boat A number of embodiments of lubricating systems for small watercraft that might become inverted and wherein a lubricant reservoir supplies lubricant under gravity to a lubricant pump when the water pump is operating in a normal upright condition. An air re... | 08/31/1993 |
| 5236314 | Oil pump device for a chain saw An oil pump device for a chain saw comprises a drive unit having a drive shaft and a gear fixed to the drive shaft and meshing with a worm gear fixed to a power output shaft of an engine. The oil pump device also comprises a pump unit having a pump casing... | 08/17/1993 |
| 5032067 | Lubricating - oil pump control The invention is directed to a motor-driven apparatus such as a motor-driven chain saw and the like having a lubricating oil pump having a piston which rotates about its central axis and an oil supply for a work tool. There is also a control means contain... | 07/16/1991 |
| 4971532 | Oil metering pump with air purge A mechanical lubricating oil pump (126) includes a pump body (140) having a cylindrical chamber (142) and a reservoir (150) with an oil supply input (196) supplying oil from an oil tank (114) to the reservoir. A cylindrical rotator (144) is driven by a ge... | 11/20/1990 |
| 4968230 | Lubricating-oil pump control The invention is directed to a motor-driven apparatus such as a motor-driven chain saw and the like having a lubricating-oil pump and an oil supply for a work tool and to apparatus for varying the reciprocatory stroke distance of the oil piston or pumping... | 11/06/1990 |
| 4904163 | Oil regulating pump for lubricating engines and method of controlling thereof An oil regulating pump for supplying oil to an engine, comprises: a pump housing provided with a suction route and a discharge route; a driving shaft inserted into said housing and rotated by the engine; a primary plunger rotated by the driving shaft; a s... | 02/27/1990 |
| 4801253 | Oil pump Instead of a hand-operated oil pump for supplying extra oil to the chain of a motor saw, two pumps according to the invention are disposed on the same shaft. The first one works always, while the second one can be switched on and off. The switching is eff... | 01/31/1989 |
| 4797073 | Pump with rotating and reciprocating piston A plunger pump has a plunger adapted to slide in the axial direction and rotate by a combination of worm and worm wheel. A cylindrical pump body has an axial extension at one free end through which a control pin extends upwardly at a right angle relative ... | 01/10/1989 |
| 4774918 | Engine lubricating system An engine lubricating system includes a lubricating oil supply mechanism having a plunger member adapted to be reciprocated in the axial direction in response to an engine output shaft to discharge lubricating oil, a control pin which is adapted to abut a... | 10/04/1988 |
| 4764093 | Oil pump for chain saw An oil pump for use in a chain saw in which the pumping plunger is constituted by a needle roller and in which gear cam portions which are formed separately from the needle roller are fitted and connected to the needle roller.... | 08/16/1988 |
| 4662071 | Motor-drive chain saw with a clutch and oil pump The invention is directed to a motor-driven chain saw wherein a sprocket for a saw chain and a drive wheel for an oil pump are rotatably journalled on the crankshaft. The oil pump pumps oil for lubricating the saw chain and guide bar. The sprocket and the... | 05/05/1987 |
| 4636147 | Lubricating-oil pump for a motor-driven apparatus A lubricating-oil pump is disclosed for a motor-driven apparatus such as a chain saw. The lubricating-oil pump delivers lubricating oil to a tool. The supply of lubricating oil from the oil pump to the tool can be interrupted. For example, in this way the... | 01/13/1987 |
| 4036326 | Lubricating oil pump A lubricating oil pump comprising a distributor rotatably fitted in a cylinder chamber of a pump body, a plunger fitted to said distributor for the purpose of forming a pump chamber between said distributor and said plunger, said plunger being rotatable i... | 07/19/1977 |
| 4034830 | Lubricating oil pump A lubricating oil pump comprising a plunger slidably and rotatably fitted in a cylinder chamber and having a worm wheel at one end and a lead portion at the other end thereof and arranged to form a pump chamber by means of a part of said cylinder chamber ... | 07/12/1977 |
| 4000790 | Lubricant proportioning pump A lubricant proportioning pump having a delivery piston controling the pumping operation, rotatable about its longitudinal axis by way of a step-down transmission and movable to and fro in lengthwise direction by means of a cam track held against a fixed ... | 01/04/1977 |
| 3967612 | Lubricating oil pump for use in an internal combustion engine A lubricating oil pump which is responsive to the engine load to supply an associated internal combustion engine with an optimum quantity of lubricating oil. The lubricating oil pump determines the oil outlet frequency depending on the engine speed and de... | 07/06/1976 |
