Quotables
"Inventing is a combination of brains and materials. The more brains you use, the less material you need."
Charles Kettering
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 |
| 8142169 | Variable geometry ejector An ejector for a turbine engine is described herein. The ejector may include a variable geometry motive nozzle and a variable geometry mixing tube positioned downstream of the variable geometry motive nozzle. ... | 03/27/2012 |
| 8083495 | Ejectors with separably secured nozzles, adjustable size nozzles, or adjustable size mixing tubes An ejector comprising a motive inlet, a motive nozzle separably secured to the motive inlet, a suction chamber about the motive nozzle, a suction fluid inlet to the suction chamber, a mixing tube in fluid communication with the suction chamber and the motive nozzle,... | 12/27/2011 |
| 7370640 | Fuel feed unit The invention relates to a fuel feed unit (2) for a motor vehicle, comprising a volume flow reducing valve (13, 14) that is mounted in a pump fluid line (11, 12) leading to a suction jet pump (5, 6). Said volume flow reducing valve (13... | 05/13/2008 |
| 7281904 | Transmission pump and filter The filter housing has a filter outlet portion with a central filter outlet passage. The outlet portion includes a terminal end portion defining a filter nozzle. The filter nozzle forms a nozzle passage between the filter nozzle and the pump housing. The nozzle pass... | 10/16/2007 |
| 6976645 | Ejector for use with pneumatic booster An ejector having an ejector body integrally formed with a nozzle having inlet and outlet ends, a diffuser having inlet and outlet ends and a suction passage defining a suction port between the outlet end of the nozzle and the inlet end of the diffuser. The nozzle a... | 12/20/2005 |
| 6966132 | Method and device for moving subsea rocks and sediments A method for moving subsea rocks and sediments which can be at significant depths, in connection with removal of protective rocks around installations where maintenance is to be conducted. Tubing with an ejector nozzle is arranged completely externally in relation t... | 11/22/2005 |
| 6783329 | Regulating jet pump with two fluid seals, one opening at an intermediate inlet pressure and the other opening at a higher inlet pressure for increased flow through the pump The invention provides a jet pump comprising a housing containing a nozzle into which an injected fluid is introduced, the housing also possessing a suction orifice, the pump comprising, upstream from the outlet of the nozzle, an auxiliary chamber associated with tw... | 08/31/2004 |
| 6729852 | Vacuum producing device A vacuum producing means having a housing (2) with an inlet connection (4) and a suction connection (6) arranged opposite to same. The housing (2) comprises a suction nozzle means (16) and a gage pressure pulse means (35) ar... | 05/04/2004 |
| 6719536 | Vacuum generator with power failure operation mode Vacuum generator comprising an ejector nozzle which is connected to a compressed-air supply via a compressed-air line, and with a first valve for opening and closing the compressed-air line, wherein a second electrical valve is connected to the suction line of the e... | 04/13/2004 |
| 6701715 | Variable geometry ejector for a bleed air system using integral ejector exit pressure feedback A system and method of using a variable geometry ejector for a bleed air system using integral bleed pressure feedback which utilizes a minimal amount of high-pressure air, thus improving the overall engine cycle performance and is easily adaptable to a m... | 03/09/2004 |
| 6413063 | Pump A rotary vane pump for delivering a fluid, having a delivery device (1) accommodated in a casing (2), with the casing (2) being closed on the one side by a casing cover (3), and on the other side by a bearing flange (4). A drive shaft (11) extends through... | 07/02/2002 |
| 6341623 | Variable orifice, pressure compensated automated fuel jet pump An automotive vehicle fluid jet pump 7 is provided including a first chamber 340 having a rear end 348 sealed from a front end 344 by a pressure communicative boundary 352. The first chamber front end 344 has an inlet 332 fluidly connected with a source o... | 01/29/2002 |
| 6322327 | Jet pump for transfer of material An improved liquid jet pump for moving solid or other materials is provided. The liquid jet pump includes a nozzle assembly, a suction chamber, and a target tube. The nozzle assembly pulls in atmospheric air, causing an air bearing effect around the liqui... | 11/27/2001 |
| 6220271 | Checkvalve unit A checkvalve (1) is provided with an inlet which can be connected to an operating system requiring a negative pressure, e.g. to a braking force amplifier (17), an outlet (3) which can be connected to a negative-pressure system producing a negative pressur... | 04/24/2001 |
| 6171069 | Jet pump having a movable piston A refrigeration unit having a jet pump with an automatically adjustable cross-section for the control of refrigerant flow that provides a more economical refrigeration process. The circulation of thermotransfering materials, such as a refrigerant, through... | 01/09/2001 |
| 6109882 | Operating mode of a jet blower The invention relates to the field of jet technology. After the required pressure of the gaseous medium at the gas inlet of a liquid-gas jet apparatus is obtained, the ratio of the liquid pressure in the nozzle of the jet apparatus to the pressure at the ... | 08/29/2000 |
| 6071084 | Aspirator An aspirator for inflating inflatable devices such as aircraft emergency evacuation slides and life rafts using a quantity of primary gas that is stored in a tank that within the aspirator entrains a secondary gas, typically outside air, as the primary ga... | 06/06/2000 |
| 6035881 | Checkvalve unit A checkvalve (1) is provided with an inlet which can be connected to an operating system requiring a negative pressure, e.g. to a braking force amplifier (17), an outlet (3) which can be connected to a negative-pressure system producing a negative pressur... | 03/14/2000 |
| 5813061 | Air pressure driven vacuum sewer system A vacuum sewer system comprises a normally closed sewer valve connected between the outlet opening of a waste receiving unit to be emptied and a sewer pipe, and an ejector. The ejector is an integrated part of the sewer pipe. The sewer pipe includes one p... | 09/29/1998 |
| 5558503 | High-pressure cleaning device with bypass mechanism and pulsation dampeming In order to minimize the dimensions of the spring (22) and the pump motor in a high-pressure cleaning device comprising a high-pressure pump pumping cleaning liquid out of a suction line (1) into a pressure line (6) leading to a discharge device, a bypass... | 09/24/1996 |
| 5496152 | Pump with internal valve between suction and pressure regions A pump in which a valve bridges the pressure region and the suction region and the delivery system displaces liquid from the suction region to a pressure region. The pump housing has an annular channel connected to the suction or intake passage and into w... | 03/05/1996 |
| 5427151 | Pressure regulating chemical injector valve A chemical injector valve connected to a source of water under pressure harnesses the venturi effect to entrain liquid chemicals into a water stream and employs a variable size pressure chamber to ensure that the flow rate and quantity of chemicals entrai... | 06/27/1995 |
| 5348449 | Airflow regulator A passive aspirator based on the Venturi effect has a pivotable flap in the inlet portion of a first air passage. The flap reduces the air flow through the passage when high pressure is present. A spring biases the flap toward an open position. Increasing... | 09/20/1994 |
| 5320497 | Vacuum feeding apparatus Disclosed herein is a vacuum feeding apparatus for causing a working device such as a suction pad to communicate with a vacuum port so as to enable the working device to attract and hold a work or feed it to a desired position. In the vacuum feeding appar... | 06/14/1994 |
| 5205717 | Ejector array and a method of achieving it Method of achieving with at least two compressed air operated ejectors a desired subpressure in the shortest possible time and with the least use of energy, this method including connection of the ejectors such that they work one at a time in response to ... | 04/27/1993 |
| 5167273 | Aspirator tube check valve assembly and method of continuously sensing vehicular interior compartment air temperature An interior air temperature sensing system is provided for use with a vehicle interior compartment air temperature regulating system including an ambient air inlet duct, a blower housing connected to an air inlet duct and an air temperature modifier and a... | 12/01/1992 |
| 5000665 | Adjustable flow mini whirlpool jet A whirlpool jet assembly adapted to be mounted in an opening in the wall of a water tub for discharging the water stream into the tub. The jet assembly includes a housing defining a socket having an air inlet and a water inlet and a ball fitting pivotably... | 03/19/1991 |
| 4902202 | Variable discharge gear pump with energy recovery Variable discharge and energy recovery is produced by an adjustable spool in fluid communication with the outlet chamber for adjustably providing pressurized fluid from the outlet chamber to selected portions of the demeshing area of the intermeshing teet... | 02/20/1990 |
| 4762467 | Method for controlling the pressure ratio of a jet pump In a jet pump, the suction pressure (Po) generated may be kept constant within predetermined limits and times by varying the pressure ratio f(p) providing a prescribed value for the pressure ratio f(p) is determined by computer-aided iterative changing of... | 08/09/1988 |
| 4735554 | Self-regulating deicer valve A self-regulating vacuum control valve with a needle valve operating in a narrow central bore that regulates the flow of pressurized air from a pressure source into such narrow central bore for passage and discharge from an enlarged bore. A vacuum is pull... | 04/05/1988 |
| 4725201 | Automatic starting system for hydrokinetic amplifier Automatic starting of a hydrokinetic amplifier 10 is accomplished by: an overflow pilot valve 32 responsive to output pressure for opening an overflow line 30 when output pressure drops below a predetermined level; and a start-up pilot valve 36 responsive... | 02/16/1988 |
| 4718835 | Mining apparatus and jet pump therefor This disclosure relates to deep sea mining apparatus, comprising a relatively straight lift pipe, the lift pipe being adapted to extend substantially vertically from the floor of a body of water upwardly to a ship on the surface of the water. A plurality ... | 01/12/1988 |
| 4631004 | Jet pump having pressure responsive motive fluid control valve A jet pump has an inlet, an outlet, a flow path communicating the inlet with the outlet, and a high pressure motive fluid inlet. The motive fluid inlet communicates with the flow path via a motive fluid control valve disposed within a nozzle assembly. A j... | 12/23/1986 |
| 4595344 | Ejector and method of controlling same An adjustable ejector capable of adjusting the fluid flow conditions resulting from fluid flow through the ejector. Adjustment means are provided for varying the fluid presentation size ratio of the inlet nozzle throat to the mixing throat. The adjustment... | 06/17/1986 |
| 4566862 | Fluid apparatus and methods, as for inflating inflatable structures In a system for inflating airslides and the like, the pressure of the primary gas supplied to an ejector is controlled so as to maintain a constant mass flow rate into the airslide over its inflation cycle. A controller for controlling the primary gas pre... | 01/28/1986 |
| 4408961 | Jet pump with integral pressure regulator A combined pressure regulator and jet pump includes a valve member and cooperating nozzle defining member which are coaxial and independently movable. Both members are responsive to the difference in upstream and downstream pressures and each member will ... | 10/11/1983 |
| 4396356 | Aspirator and aspirating system In an aspirator having convergent and divergent passage sections interconnected by an intermediate passage, the intermediate passage is characterized by an upstream portion having a constant first diameter, a downstream portion having a constant second di... | 08/02/1983 |
| 4376045 | Liquid treatment apparatus In liquid sedimentation and clarification apparatus recirculation of previously settled solids is automatically controlled. Nozzles in an updraft tube produce a suction or pumping force for recirculating such solids, and a flow passage in alternate nozzle... | 03/08/1983 |
| 4340336 | Aspirator A novel gas-powered aspirator comprises a venturi chamber for suctioning a vacuum jar incorporating a valve body, movable between two positions, one for directing gas to the venturi chamber, and the other for closing it from the gas supply. The valve body... | 07/20/1982 |
| 4089622 | Vacuum generator A vacuum generator of the ejector type includes a control valve subjected to frictional damping forces wherein the frictional damping forces are varied in response to changes in pressure differentials in the device such that the control valve is enabled t... | 05/16/1978 |
