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| Number | Title | Issue Date |
| 7008187 | Rotor for cooling pumps, in particular for marine engines and relevant manufacturing process A rotor for cooling pumps is provided. The rotor is of the type which includes a core to be assembled on a shaft connected with an engine and a body, fitted in the core, provided with a plurality of radial tabs in flexible material. The core and the body with the ta... | 03/07/2006 |
| 6659065 | Flexible vane rotary engine An internal combustion rotary engine that employs resilient, flexible vanes attached to a rotor that spins within an oval cavity in a housing. The vanes, which are long enough to extend slightly radially from the rotor by a distance beyond the interior su... | 12/09/2003 |
| 6264450 | Flexible vane pump A pump has a rotor with two or more flexible vanes forming one or more compartments between adjacent vanes. The rotor is mounted offset relative to a rotor sleeve such that the volume of the compartments varies as the rotor rotates in the sleeve. Incoming... | 07/24/2001 |
| 6213740 | Flexible impeller pump having a transparent safety cover A flexible impeller pump having a transparent safety cover. The pump includes a flexible impeller and a housing having a pump and cover. The pump end cover comprises a transparent safety cover which is capable of attachment to the housing. A transparent h... | 04/10/2001 |
| 6203302 | Rubber impeller pump A high pressure fluid forcing pump having a cavity adaptable for receiving an impeller assembly rotatable within the cavity of the pump. The impeller assembly includes an impeller engaged between first and second spaced apart bearing plates and having tip... | 03/20/2001 |
| 5660536 | High capacity simplified sea water pump A sea water pump (130) for a marine propulsion system includes a housing (130) having a generally cylindrical pumping chamber (134) defined by a generally cylindrical sidewall (136) extending axially between opposite end walls (138 and 140). A multi-vaned... | 08/26/1997 |
| 5456585 | Positive displacement fluid motor with flexible blades The fluid motor, e.g. a liquid meter, a mixing apparatus or a turbine, has a chamber (1) with a rotor having stiff blades (7) which at their outer ends are provided with plate formed wings (8) of elastomeric material. The wings (8) are by a thin, overlapp... | 10/10/1995 |
| 5449280 | Pump including integral reservoirs for permitting dry run of pump A pump having a housing with an integral fluid reservoir and flexible end plates to permit the pump to be run dry for an extended period of time. A pair of reservoirs are provided, one each side of a pumping chamber. These reservoirs are in fluid communic... | 09/12/1995 |
| 5163825 | Articulated vane fluid driven motor An articulated air vane air or hydraulic motor has a rotor core disposed coaxially in a cylindrical housing, with a plurality of articulating vanes that seat in axial sockets or slots in the rotor core. A crescent shaped insert defines a cam surface in th... | 11/17/1992 |
| 4940402 | High pressure and high lift pump impeller In a rotary vane positive displacement pump (28), the pump impeller (56) has weights (68-73) at the outer tips of the vanes (58-63) of greater mass per unit volume than the vanes and increasing outward centrifugal force urging engagement of the outer tips... | 07/10/1990 |
| 4897059 | Water pump for marine propulsion system A corrosion resistant coolant pump for placement in the cooling system of a marine drive includes a corrosion resistant member mounted to and rotatable with a drive shaft interconnected with and rotatable in response to the engine crankshaft. The corrosio... | 01/30/1990 |
| 4718837 | Marine drive water pump impeller A marine drive water pump impeller (1) is provided for a marine rotary vane positive displacement water pump. A filament wound annular drive hub (3) is cured with resin polymer. A rubber annular base (6) having a plurality of flexible radial vanes (7), is... | 01/12/1988 |
| 4673359 | Water pump for marine propulsion devices A fluid pump assembly comprising a circular drive shaft including a flat side, and an impeller hub including an inner surface formed in part by a circular bore receiving the drive shaft and by a generally crescent-shaped keyway adjoining the bore and havi... | 06/16/1987 |
| 4650398 | Bearing unit with integrated pump A bearing unit for a rotating component, such as a toothed gear or guide pulley, with an integrated pump consists of a housing with a pump chamber defined therein, a pump rotor installed in the pump chamber, a support pin having an end supported in the ho... | 03/17/1987 |
| 4613014 | Oil changing and lubricating apparatus There is disclosed an oil changing and lubricating system for a vehicle comprising a housing connectable to the vehicle, a pump affixed to the housing, the intake of the pump communicating with an oil reservoir for the vehicle and the outlet of the pump b... | 09/23/1986 |
| 4592733 | Water pump for marine propulsion devices A marine propulsion device comprising an engine with a cooling jacket and a fluid pump assembly for circulating water through the cooling jacket. The fluid pump assembly comprises a housing including a pump chamber, an impeller within the housing, a drive... | 06/03/1986 |
| 4443167 | Rotary fluid pump mechanism A fluid pump for pumping a fluid from an input conduit to an output conduit comprising a housing having a cup-shaped rotor assembly rotatably disposed within the housing. A vane ring assembly is slidably disposed within the rotor assembly. A protuberance ... | 04/17/1984 |
| 4411593 | Rotary type pump resistant to muddy water A rotary type liquid pump of the type used with marine outdoor motors is made resistant to abrasive materials in muddy water which it pumps by providing flexible seals to prevent the water from stealing between the impeller boss and bush, and the drive sh... | 10/25/1983 |
| 4392779 | Marine drive water pump Marine drives having water cooled engines utilize a water pump mounted over the drive shaft and internal to the drive shaft housing to provide engine cooling, the pump having stamped metal housing parts and a flexible impeller.... | 07/12/1983 |
| 4181472 | Liquid dispensing windshield washer pump A liquid dispensing pump of the motor-driven flexible vane impeller type suitable for use in an automobile windshield washer system includes a housing that defines a motor chamber having a motor supporting end wall. A closure wall is fixed to the end wall... | 01/01/1980 |
| 4051893 | Air curtain-projecting ventilator A ventilator adapted to project a uniform air curtain of high velocity and of high pressure. The ventilator is in the form of an elongated air pump in which a rotor shaft is mounted eccentrically within an open coil helix lining the tubular casing of a st... | 10/04/1977 |
| 3956904 | Compressor-expander for refrigeration having dual rotor assembly A compressor-expander assembly for use in a refrigeration system which includes a housing defining compression and expansion chambers of generally cylindrical section arranged side by side. Compressor and expander rotors of cylindrical shape are journaled... | 05/18/1976 |
