Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8105018 | Decoupler devices to prevent backdrive in air turbine starters An air turbine starter for starting an engine includes a housing, and a flow path communicating a flow of gas therethrough; a turbine member; a clutch; and a decoupler device at least partially housed within the output member of the clutch. The decoupler device incl... | 01/31/2012 |
| 8096753 | Tip turbine engine and operating method with reverse core airflow A tip turbine engine (10) and a method of operating the engine provides increased efficiency while eliminating or educing the number of axial compressor (122) stages by moving the core airflow inlet (27) aft of the fan (24). As a result, ... | 01/17/2012 |
| 8057166 | Passive fan A passive fan includes a frame, at least one impeller and at least one driving device. The impeller is disposed in the frame. The driving device is disposed in the body of the frame and separated from the impeller, and drives the impeller to rotate. The driving devi... | 11/15/2011 |
| 8038386 | Intermediate casing of a turbojet and a turbojet The present invention relates to an intermediate casing of a turbojet comprising, between an inner hub and an outer cylindrical shroud, a plurality of radial arms at least one of which is hollow, a radial transmission shaft for driving the auxiliary machines being m... | 10/18/2011 |
| 7955046 | Gas turbine engine front architecture modularity A gas turbine engine is disclosed that includes a spool having a compressor section. An inlet case is arranged axially upstream from the compressor section. A gearbox is secured to the inlet case. The gearbox couples the spool and a fan. A sealing assembly is arrang... | 06/07/2011 |
| 7811052 | Radially-compact assembly between a turbine shaft and a stub axle of a turbomachine compressor shaft An assembly between a turbine shaft and a stub axle of a turbomachine compressor shaft, the assembly including a substantially cylindrical compressor shaft stub axle, a substantially cylindrical turbine shaft disposed coaxially inside the compressor shaft stub axle,... | 10/12/2010 |
| 7396209 | Continuously variable transmission A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimu... | 07/08/2008 |
| 7304844 | Cooling fan assembly A cooling fan assembly includes a cooling fan (1) having a rotary hub (14) and a plurality of fan blades extending radially from an outer periphery of the hub, a hood (20) connected with the cooling fan, and a guiding member (40) located ... | 12/04/2007 |
| 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 |
| 7261524 | Rotation support with improved thrust-bearing for rotors of pump electric motors A rotation support has improved thrust-bearing for rotors of electric motors of synchronous pumps. The rotation sup: a stator of the electric motor, in which a hollow body is housed for supporting and containing a permanent magnet rotor, an impeller being kinematica... | 08/28/2007 |
| 7244097 | Device for adjusting the angle of incidence of a rotor blade of a wind power installation A device for the targeted adjustment of the angle of incidence of a rotor blade (13) which is rotatably mounted, at the foot (14) thereof, on a hub (12) of a rotor (11) of a wind power installation (10). The device includes a geari... | 07/17/2007 |
| 7186081 | Air turbine starter enhancement for clearance seal utilization An air turbine starter (ATS) configured to couple to a gearbox, the ATS including an output shaft having an outer peripheral surface, a gearbox section, and an ATS section, the gearbox section configured to be disposed within, and coupled to, the gearbox and the ATS... | 03/06/2007 |
| 7168913 | Twin-spool turbojet with means for driving ancillary machines A turbojet includes a differential gear with a first planetary pinion driven by the shaft of the high pressure spool and a second planetary pinion driven by the shaft of the low pressure spool. The planetary pinions drive satellite pinions mounted in a cage by which... | 01/30/2007 |
| 7128061 | Supercharger A centrifugal supercharger is provided. One embodiment of the supercharger comprises a two-piece housing wherein a parting area is substantially aligned with a rotational axis of a drive- or impeller shaft. Another embodiment comprises a sleeve, or intermediate memb... | 10/31/2006 |
| 7128529 | Perfected device for securing an engine shaft on a bearing support A device (D) is dedicated to securing a machine shaft (AIP) on a bearing support (SP). This device (D) comprises i) a locknut (19) provided with a stop, comprising a front face (23), a thread (20) intended to interact with a thread (7) of... | 10/31/2006 |
| 7107973 | Multiphase centrifugal compressor A multi-phase centrifugal supercharging system (10) configured for supplying compressed induction fluid to an engine (E) is disclosed. The air induction system (10) broadly includes a drive assembly (12) powered by the engine (E), a superchargin... | 09/19/2006 |
| 7107972 | Multi-phase centrifugal supercharging air induction system A multi-phase centrifugal supercharging system (10) configured for supplying compressed induction fluid to an engine (E) is disclosed. The air induction system (10) broadly includes a drive assembly (12) powered by the engine (E), a superchargin... | 09/19/2006 |
| 7077631 | Ram air turbine with speed increasing gearbox A ram air turbine power system includes a ram air turbine having a turbine shaft, turbine blades for rotating the turbine shaft; and an electrical generator or other power source device driven by a power shaft, for providing power. The power shaft has a generally ho... | 07/18/2006 |
| 7055390 | Seal assembly with means for detecting seal failure A seal assembly includes a first body and a second body. A primary seal is disposed between the first body and the second body. A secondary seal is disposed between the first body and the second body in spaced relation to the primary seal. A pressure port extends th... | 06/06/2006 |
| 7056086 | Steam turbine including a high-pressure body having a single state of blades A steam turbine 1 constructed in accordance with the present invention comprises a high-pressure module 2 and a low-pressure module 3, a speed-reducing gearbox 4, and an alternator, and wherein the high-pressure module 2 has a sing... | 06/06/2006 |
| 6991425 | Air turbine starter with unitary inlet and stator An air turbine starter for use in aircraft or other gas turbine engine applications. In a particular embodiment, the air turbine starter has a titanium unitary inlet structure. The unitary inlet structure has a housing having a longitudinal centerline. The housing d... | 01/31/2006 |
| 6935838 | High pressure multi-stage centrifugal blower A high pressure centrifugal blower having vertically split casing and aluminum or steel impellers mounted on a common shaft housed within the casing, and at least two oil-enclosing bearing housings to rotatably support the rotors, where an integral gearbox is formed... | 08/30/2005 |
| 6908291 | Corrosion-resistant impeller for a magnetic-drive centrifugal pump An impeller for a magnetic-drive centrifugal pump includes a core for supporting a magnetic assembly of magnets. An inner barrier covers at least part of the magnets. The inner barrier hermetically isolates the magnetic assembly within the impeller. For example, in ... | 06/21/2005 |
| 6676379 | Ram air turbine with speed increasing gearbox A ram air turbine power system includes a ram air turbine having a turbine shaft, turbine blades for rotating the turbine shaft; and an electrical generator or other power source device driven by a power shaft, for providing power. The power shaft has a g... | 01/13/2004 |
| 6634853 | Compact centrifugal compressor In a centrifugal compressor the drive shaft of the compressor is driven by a step up gear mechanism including an input shaft driving a central drive gear, an output gear mounted on the compressor drive shaft, and three gear trains extending from the centr... | 10/21/2003 |
| 6623238 | Air turbine starter with seal assembly An air turbine starter with an improved seal assembly is provided. A fluid conduit or channel allows higher pressure fluid into one side of a bearing seal. For example, the seal assembly may include a face seal, and a second seal forming a chamber therebe... | 09/23/2003 |
| 6585483 | Stationary roller shaft formed of a material having a low inclusion content and high hardness An improved stationary roller shaft of a gear assembly for an air turbine starter is provided. The air turbine starter may be used to start a gas turbine engine, such as may be found in aircraft, ships and military vehicles. The stationary roller shaft is... | 07/01/2003 |
| 6524078 | Pond pump with reversing means to prevent rotation in the opposite direction A pond pump having a housing (1) enclosing a synchronous motor (9) with a drive shaft (40) on which an impeller (20) is loosely fitted so that, on start up, the shaft (40) can rotate relative to the impeller (20) until a pair of diametrically opposed keyw... | 02/25/2003 |
| 6520740 | Energy efficient fan One or more fan blades extend radially from a hub that is freely rotatable relative to a main drive shaft. The hub is coupled to the drive shaft so that, when the drive shaft is moved through an orbital path in a cyclical motion, the hub moves in a twirli... | 02/18/2003 |
| 6488467 | Integrally cast volute style scroll and gearbox A casting technique is disclosed which improves efficiency and reduces fabrication and assembly cost for a centrifugal compressor. The volute is cast integrally with the impeller housing to allow closer radial tolerances to be used to improve efficiency. ... | 12/03/2002 |
| 6467578 | Gear baffle windage test rig A test fixture will test windage on high-speed gears. The test fixture has a case with a sump. A shaft is rotatably mounted in the case for receiving and rotating a test gear. A power source is coupled to the shaft for driving the shaft. A nozzle is mount... | 10/22/2002 |
| 6439208 | Centrifugal supercharger having lubricating slinger 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 p... | 08/27/2002 |
| 6413038 | Windmill A windmill for efficiently catching wind for turning an axle. The windmill includes a support structure. The support structure includes a plurality of generally vertically orientated posts. Each of the posts is spaced from each other. Each of the posts ha... | 07/02/2002 |
| 6318958 | Air turbine starter with seal assembly An air turbine starter with an improved seal assembly disposed between the turbine and the housing is provided. The seal assembly comprises a face seal, a non-contacting seal axially spaced therefrom to define an air filled annular chamber therebetween an... | 11/20/2001 |
| 6320745 | Cooling mechanism for electrical device having rolling shaft An automatic cooling mechanism for an electrical device having a high-temperature element and a rolling shaft is provided. The mechanism includes a fan mounted within the electrical device; and a rotation transmission and variation mechanism connected bet... | 11/20/2001 |
| 6318346 | Supercharger with new impeller and improved drive assembly An impeller for a supercharger is described. The impeller comprises a body having a base and an air intake end wherein the body is adapted to mount to a drive assembly of the supercharger. Further, the drive assembly is able to drive and rotate the body. ... | 11/20/2001 |
| 6299408 | Cooling fan for computing devices with split motor and fan blades A fan for a computing device. The fan includes a motor and a blade portion having a plurality of blades; however, the blade portion is located apart from the motor. A blade driving mechanism connects the motor to the blade such that the blade rotates when... | 10/09/2001 |
| 6293772 | Containment member for a magnetic-drive centrifugal pump A containment member for a magnetic-drive centrifugal pump includes a reinforcement member cooperating with an inner layer and an outer layer to form a unitary body. The inner layer has a first side defining a generally annular recess and a second side op... | 09/25/2001 |
| 6280138 | Vertical axis pump Since a reduction gearbox (50) is mounted onto the outer wall of the discharge elbow (30), the installation height of a vertical axis pump is reduced. A pump shaft (34) comes out the outer wall of the discharge elbow (30) and passes through a separate wal... | 08/28/2001 |
| 6257498 | Method and apparatus for an agricultural air handler An economical and compact air handler specially configured for use in agricultural applications is provided. The agricultural air handler includes a shroud formed to surround a rotating shaft having a propeller attached to each end of the shaft. The prope... | 07/10/2001 |
