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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8109741 | Pump A pump has a body and a pressurizing barrel. The body has an outlet tube and a magnetic check valve mounted in the outlet tube to prevent a back-flow current from damaging an impeller mounted inside the body. When closed, the magnetic check valve actuates a magnetic... | 02/07/2012 |
| 8109742 | Rotor yoke with cup portion having a deviated center of gravity and a flange portion having a deviated rotational axis A rotor yoke includes a substantially flat or annular flat cover portion coaxial or substantially coaxial with a rotational axis and a substantially cylindrical side wall portion extending from an outer circumference of the cover portion in a parallel or substantial... | 02/07/2012 |
| 8079833 | Electric motor having a coaxially associated pump An electric motor (1) having a coaxially associated pump (6) for a coolant circuit, in particular in a system with temperature transfer and/or heat transfer, in which a shaft assembly (5) transmits a torque from the electric motor (1) to ... | 12/20/2011 |
| 8057199 | Centrifugal drainage pump with shock absorbing coupling arrangment A pump assembly constructed to allow unloaded starting of the pump. The assembly includes a pump body, a permanent magnet rotor, a rotor shaft, a pump cover, a shaft sleeve and an impeller. The impeller includes a holding chamber for holding the shaft sleeve which i... | 11/15/2011 |
| 8038419 | Controllable coolant pump A controllable coolant pump for internal combustion engines driven by torque transmission elements has a pump housing, a driven shaft mounted in the pump housing, an impeller wheel arranged fixedly in terms of rotation on a free, flow-side end of the shaft, and a pr... | 10/18/2011 |
| 7976292 | Inner-rotor-type heat dissipating fan An inner-rotor-type heat dissipating fan includes a fan housing, a seal casing, an inner-rotor-type motor, an impeller and a circuit board. The fan housing includes an outer frame portion and a motor casing. The seal casing is a hollow housing made of magnetically c... | 07/12/2011 |
| 7866958 | Solar powered fan A solar powered personal fan with a much broader spectrum of both portable and fixed operating applications whereas prior art is application specific. This device also provides a plurality of fixed and portable power supplies. A solar panel, rechargeable battery pac... | 01/11/2011 |
| 7540725 | Seal mechanism for fluid machine A seal mechanism (10) can reduce noise during operation. The seal mechanism (10) is used for a fluid machine (P) to prevent a fluid from leaking out of a high-pressure space (H) into a low-pressure space (L) in the fluid machine (P). The seal mechanism... | 06/02/2009 |
| 7520734 | Electrically driven air pump and method for the production thereof A method to manufacture a secondary air pump for a motor vehicle with an internal combustion engine, wherein the air pump features a housing, in which a pump mechanism with at least one fan wheel as well as an electric motor driving the at least one fan wheel are ar... | 04/21/2009 |
| 7476091 | Power blower A power blower has a body having a fan housing for accommodating a fan, the fan housing having an upper portion, a lower portion opposite to the upper portion, and a pair of support portions extending from the upper portion. A driving machine is mounted to the fan h... | 01/13/2009 |
| 7442014 | Fluid transfer system and method for transferring fluid A fluid transfer systems described herein. The fluid transfer system generally includes a centrifugal multistage pump, a holding tank for holding the fluid operably connected to the pump body via a first conduit, an inlet for receiving the fluid, wherein the fluid i... | 10/28/2008 |
| 7438538 | Pump and method A pump for moving a liquid including a rotor rotatable within a housing and slidable relative to the housing between a first axial rotor position during normal pump operation and a second axial rotor position during a pump inoperative condition. ... | 10/21/2008 |
| 7438534 | Wide range pressure control using turbo pump The present invention is an apparatus and method for controlling a process flow rate and a pressure in a vacuum process chamber that is evacuated by a turbomolecular pump. A throttle valve between the pump and the process chamber is controlled to regulate the pressu... | 10/21/2008 |
| 7418948 | Fuel pump having motor arrangement and pump arrangement A stator core of a motor arrangement includes six cores, which are arranged one after another in a circumferential direction. A bobbin, which is made of dielectric resin, is fitted to each core. Each coil is formed such that a winding is wound around the bobbin thro... | 09/02/2008 |
| 7416384 | Electric blower and vacuum cleaner using same An electric blower includes an electric motor including a stator and a rotor. The impeller is rotated by the electric motor. An air guide having a plurality of guide blades is disposed around the impeller, and a casing encloses the impeller and the air guide. The ca... | 08/26/2008 |
| 7407371 | Centrifugal multistage pump A centrifugal multistage stage pumps described herein. The centrifugal multistage pump includes a pump body having a longitudinal axis, an inlet for receiving a fluid from a first location and an outlet for discharging a pressurized fluid to a second location and a ... | 08/05/2008 |
| 7384237 | Fan unit for a ventilator The invention relates to fan units for ventilators, in particular for CPAP-apparatus. The fan units comprise a housing, a motor having a stator and a rotor, with the stator being affixed to the housing, and an impeller affixed to the rotor. According to an embodimen... | 06/10/2008 |
| 7371056 | Fluid pump, cooling system and electrical appliance A fluid pump includes a case including a pump chamber, a reserve tank for storing spare liquid and located in the case but outside the pump chamber and formed so that a space independent of the pump chamber is defined by the reserve tank, a fluid path forming member... | 05/13/2008 |
| 7371052 | Embedded fluid mixing device using a homopolar motor A fluid displacement device (100) having a homopolar motor (110). The homopolar motor includes a rotatable disk (115) with at least one fluid displacement structure (120) disposed thereon. The fluid displacement structure can be a blade. ... | 05/13/2008 |
| 7367787 | Pumping unit for a liquid medium A pumping unit is provided with a pump that is partially disposed in a stator of an electric motor. The rotor is at an opposite end from the pump and is connected to the pump shaft to drive it for fluid flow. The pump shaft can be positioned in a central bore of the... | 05/06/2008 |
| 7364411 | Fan impeller and fan motor Small, high-performance centrifugal fan for cooling portable electronic devices. The centrifugal fan motor employs a cantilever-type impeller constituted by an impeller blade unit that includes a lower endwall portion at axial one end, having a wall surface for brea... | 04/29/2008 |
| 7357625 | Push rod in an electrical pump adapted for use with a piston rod in an air nozzle An electrical pump adapted for use with a piston rod in an air nozzle has an electromagnetic valve board with an electromagnetic valve thereon. A Z-shaped push rod is provided to be adapted to be driven by the electromagnetic valve so as to drive the piston rod to m... | 04/15/2008 |
| 7359196 | Dual impeller push-pull axial fan heat sink A fan sink that includes a dual impeller push-pull axial fan and a heat sink to cool a hot electronic device is presented. The axial fan has a hub motor, a first impeller that is radially proximate to the hub motor, and a second impeller that is radially distal to t... | 04/15/2008 |
| 7358631 | Blower device A blower device of the present invention includes an electric motor having an impeller, a housing for accommodating the electric motor having the impeller therein, and a bind member which fixes, to the housing, lead wires which are led out from the motor and which s... | 04/15/2008 |
| 7347674 | Pump A fluid pump of the type in which a housing assembly has a first sub-housing having an electric motor therein which is in line with a second sub-housing having the impeller therein, with the motor having a rotor shaft which extends through a seal of the first sub-ho... | 03/25/2008 |
| 7329846 | Electric range An electric range includes a circuit board provided with at least one semiconductor chip and adapted to control an electric current to be applied to an induction heating device, a heat sink to absorb heat of the semiconductor chip to discharge the heat to the outsid... | 02/12/2008 |
| 7327045 | Fuel delivery system and method providing regulated electrical output In a mobile fuel delivery vehicle, providing bulk aircraft fuel from a pressurized fuel reservoir to an aircraft, a method of regulating electrical output of an electrical power source, includes the steps of: (a) receiving, in a fluid path, the bulk aircraft fuel fr... | 02/05/2008 |
| 7322805 | Impeller adjustment device and method for doing the same for close coupled pumps A method and apparatus are provided for adjusting an impeller in a motor and impeller assembly of a pumping device. The method features steps of: tightening mounting bolts so as to move the motor and impeller assembly of the pumping device forward until the impeller... | 01/29/2008 |
| 7322799 | Scalable, modular, high availability fan system In one embodiment, the invention recites a fan motor assembly with integrated redundant availability. The fan motor assembly comprises a fan motor subassembly with a plurality of replaceable fan motors, and a fan motor selector mechanism coupled to the fan motor sub... | 01/29/2008 |
| 7314352 | Electric pump An electric pump comprises a case in which a core being enwound by a coil is embedded, a permanent magnet formed in a cylindrical shape, having a central axis being identical to that of the core, and positioned so as to face an inner peripheral side of the core, an ... | 01/01/2008 |
| 7314040 | Fuel supply apparatus In a fuel supply apparatus, a circuit module has a housing, a driving circuit contained in the housing, an electric connector. The circuit module is mounted to a cover member that is disposed to close an opening of a fuel tank. A fuel pump is supported by the cover ... | 01/01/2008 |
| 7312986 | Cooling device for an electronic apparatus A cooling device comprises a circulation passage through which a liquid coolant flows, and a pump provided in the circulation passage configured to circulate the liquid coolant along the circulation passage. The pump includes, (1) a pump casing including a pump cham... | 12/25/2007 |
| 7299792 | Centrifugal compressor with improved lubrication system for gear-type transmission A centrifugal supercharger includes a case presenting a compressor chamber and a transmission chamber. An impeller in the compressor chamber is mounted to a shaft that extends into the transmission chamber. The impeller shaft is drivingly connected to a power input ... | 11/27/2007 |
| 7287301 | Utility vacuum A utility vacuum that may be configured to employ a disposable bag or removable and reusable container for the collection of dirt and debris that are drawn into the utility vacuum. The utility vacuum may employ one or more movable legs that are movable between an ex... | 10/30/2007 |
| 7284968 | Bidirectional air pump A bidirectional air pump to selectively inflate or deflate an inflatable object has a housing, a pump assembly and a motor. The housing has a controller cover, a pump cover, and a motor cover. The pump assembly is mounted inside the housing and has a centrifugal pum... | 10/23/2007 |
| 7284963 | Zero maintenance pump A zero maintenance pump includes a motor having a motor housing and a motor drive shaft rotatably mounted in the motor housing. A shaft extension is coupled to the motor drive shaft distal from the motor housing. A coupling element has a body with a first end and a ... | 10/23/2007 |
| 7274566 | Cooling apparatus for an electronics subsystem employing a coolant flow drive apparatus between coolant flow paths A coolant flow drive apparatus is provided for facilitating removal of heat from a cooling structure coupled to a heat generating electronics component. The coolant flow drive apparatus includes a turbine in fluid communication with a primary coolant flowing within ... | 09/25/2007 |
| 7262532 | Arrangement with an electronically commutated external rotor motor A motor structure resistant to liquid intrusion features two modules, the first having an electronically commutated external-rotor motor (20), which motor comprises an internal stator (22) that is arranged on a bearing tube (30) and is separated... | 08/28/2007 |
| RE39787 | Blower A blower with the improved P-Q characteristics is provided. A blower comprising a shaft rotatably supported in a tubular casing, a cup shaped motor yoke 11 fixed to the shaft, and a body portion 15 of an impeller 14 comprising a large number of ... | 08/21/2007 |
| 7249556 | Compressor with fortified piston channel A compressor is disclosed generally comprising a cylinder head mounted to a cylinder block having a cooling chamber and a piston channel via a bolt. A piston is disposed in the piston channel and has a contact portion that contacts the channel wall, which is integra... | 07/31/2007 |
