Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 8057161 | Fan with integrated nonreturn flaps A fan structure, suitable for rack-mounting adjacent to heat-generating electrical equipment, features an improved noise-damping outflow baffle containing a plurality of non-return flaps, serving to prevent reverse flow of air when fan activity is interrupted. In a ... | 11/15/2011 |
| 7686572 | Pump comprising an axial balancing system A pump for the drawing-in of a fluid, including at least one centrifugal wheel having a fluid inlet edge and a fluid outlet edge, the pump further including an axial balancing system with a high-pressure flow space defined between the housing and an upstream face of... | 03/30/2010 |
| 7210895 | Turbo compressor and method of operating the turbo compressor A turbo-compressor being driven by an electric motor has an inlet guide vane and a blow-off valve. The surge limit line of the compressor is amended depending upon seasonal changes of temperature and pressure of a working gas to be sucked into the compressor. Upon t... | 05/01/2007 |
| 7198459 | Casing arrangement for a turbocharger of an internal combustion engine A casing assembly for a turbocharger of an internal combustion engine includes a rotor casing having an intake duct and an exhaust flow passage which is connected to an exhaust flange and constructed for attachment to the rotor casing such as to allow a relative mov... | 04/03/2007 |
| 7195443 | Variable pressure-controlled cooling scheme and thrust control arrangements for a steam turbine A method and system for actively controlling thrust pressure in a steam turbine is disclosed. The method may comprise monitoring a thrust pressure affecting a thrust fitting in a steam turbine, and adjusting the thrust pressure to maintain a desired thrust pressure ... | 03/27/2007 |
| 7160083 | Method and apparatus for wind turbine rotor load control Vertical and horizontal wind shears, yaw misalignment and/or turbulence act together to produce asymmetric loading across a wind turbine rotor. The resultant load produces bending moments in the blades that are reacted through the hub and subsequently to the low-spe... | 01/09/2007 |
| 7137407 | Trip manifold A trip manifold assembly is disclosed which includes a manifold body connected to a header shaft. The header shaft passes through a plurality of rotary valves. Each rotary valve is connected to a pressure transmitter. The header shaft comprises two passages includin... | 11/21/2006 |
| 7121786 | Mix-in structure for gas or the like in pressurization centrifugal pump A mix-in structure for a gas or the like in a pressurization centrifugal pump, capable of mix-discharging liquid and gas or the like to prevent cavitation and of suppressing gas residence in the pump chamber at the time of operation stoppage or the like. It comprise... | 10/17/2006 |
| 7111461 | System and method for testing a rotary flow device A diagnostic system and method for testing the operation of a rotary flow device, such as a turbine or compressor of a turbocharger with a variable-geometry mechanism, such as adjustable vanes, is provided. The system includes a flow generator configured to provide ... | 09/26/2006 |
| 7094019 | System and method of surge limit control for turbo compressors A system and method of surge limit control for turbo compressors including a turbo compressor having an inlet and an outlet, an anti-surge valve, a variable speed drive to operate the compressor, a rotational speed transmitter, an inlet temperature transmitter, an i... | 08/22/2006 |
| 7059820 | Noise control Methods, devices, and/or systems for controlling vibration and/or acoustic noise. An exemplary method senses noise and/or, for example, rotational speed of a rotating shaft, determines control parameters and actuates one or more actuators. An exemplary device includ... | 06/13/2006 |
| 7025557 | Secondary flow control system The present invention is a system (20) for controlling various fluid flows, e.g., secondary fluid flows including cavitating fluid flows, typically developed along the shroud line and usually in or around a leading edge (21) within a flow channel (2... | 04/11/2006 |
| 7025356 | Air-oil seal An air-oil seal having a runner surface comprising at least one component selected from the group consisting of: polyetheretherketone; polyetherimide; polyphenylene sulfide; and polyetherketoneketone. ... | 04/11/2006 |
| 7004724 | Method and apparatus for wind turbine rotor load control based on shaft radial displacement Vertical and horizontal wind shears, yaw misalignment and/or turbulence act together to produce asymmetric loading across a wind turbine rotor. The resultant load produces bending moments in the blades that are reacted through the hub and subsequently to the main sh... | 02/28/2006 |
| 6966754 | System and method for monitoring a wind turbine In one aspect, the present invention relates to a system for monitoring wind turbines, wherein image and acoustic monitoring, in particular, is performed. In order to further improve, for example, the maintenance, safety and efficiency of a wind turbine, it is desir... | 11/22/2005 |
| 6964553 | Port for a fan chamber A port is employed for a fan chamber which defines a volume formed by at least one generally continuous vertical wall connecting a horizontal base wall with an opposing horizontal exit wall. Within the volume is a fan rotatable in a plane generally parallel to a pla... | 11/15/2005 |
| 6953318 | Volumetric control for blower filter devices The invention relates to a volumetric control for blower filter devices in which a control unit (5) determines a differential pressure between measuring points (1, 2) that is converted into a control signal for the fan output. To this end, at least two... | 10/11/2005 |
| 6945748 | Centrifugal compressor with channel ring defined inlet recirculation channel A centrifugal compressor includes an annular inlet air recirculation channel having a smoothly variable cross section extending from a first slot at a forward end of the channel adjacent an inlet member to a second slot at a rearward end of the channel beyond an inl... | 09/20/2005 |
| 6931983 | Device for circulating sealing gas for mechanical dry seals of a centrifugal compressor at times when the machine is stationary and pressurized A device (10) for circulating sealing gas for mechanical dry seals (11) of a centrifugal compressor (13) at times when the machine is stationary and pressurized; the device comprises a sealed reciprocating compressor (12), which includes ... | 08/23/2005 |
| 6921244 | Bleed valve system Disclosed is a system for operating gas turbine engine bleed valves in response to pressure values within the engine, wherein the engine pressure values are sensed electronically and routed to a programmable logic device, and wherein the programmable logic device co... | 07/26/2005 |
| 6905123 | Seals A gas seal for providing a seal between a pair of relatively rotatable components is provided with a stand-still seal which will seal between the components when the components are stationary, the stand-still seal having a sealing element mounted in sealing relation... | 06/14/2005 |
| 6902373 | Sheet metal exhaust adapter for draft inducers An exhaust adapter for use with a draft inducer having a blower housing with a rectangular blower outlet. The exhaust adapter provides a transition from the rectangular outlet of the blower housing and a round exhaust pipe. The exhaust adapter includes a transition ... | 06/07/2005 |
| 6824347 | Valve and related methods for reducing fluid pressure and generating power A valve for reducing fluid pressure in a fluid distribution network uses the energy released from the fluid to generate power. The valve includes a housing, a turbine disposed within the housing, a fluid reservoir, and a flow control device operable to generate a tu... | 11/30/2004 |
| 6802689 | Turbo type fluid machine and dry gas seal for use therefor Abnormality in an amount of a working gas leaked from between a rotating ring adapted to rotate with a rotor and a stationary ring of a turbo fluid machine is detected by a pressure switch and a flow meter, which are provided in a primary seal vent line, the working... | 10/12/2004 |
| 6793455 | Method and apparatus for active control of surge in compressors Methods for avoiding surge in a compressor are provided. A representative method includes detecting precursor information of the compressor and controlling the compressor based on the precursor information to avoid a surge condition in the compressor. The control sc... | 09/21/2004 |
| 6793456 | Turbo-compressor and capacity control method thereof A turbo-compressor comprises a compressor main body for compressing an operation fluid, an inlet guide vane apparatus being provided on a suction side of the compressor main body and having guide vanes, and a blow-off valve being provided in a discharge said compres... | 09/21/2004 |
| 6779967 | Device for air mass flow control A device for air mass flow control in a gas turbine engine includes at least one inlet duct 1, which can issue into an air duct 2, a counter-pressure duct 3, and a double-action shut-off element, which is connected between the counter-pressure d... | 08/24/2004 |
| 6769449 | Water booster methods and apparatus Water is first caused to flow through a first passage and rotate a first impeller. Rotation of the first impeller is linked to rotation of a second impeller, which is in fluid communication with a second, discrete passage. Vanes on the second impeller are constraine... | 08/03/2004 |
| 6767178 | Response time of a steam turbine speed-control system Steam turbine speed-control systems often incorporate pilot valves for controlling the position of hydraulic actuators for steam valves. Operational efficiency of these pilot valves can suffer from imperfections due to manufacturing defects, wear, contaminated oil, ... | 07/27/2004 |
| 6715985 | Gas conditioning system A system of conditioning elements is described for supply of conditioned seal gas to the seal chamber of a rotary machine employing gas lubricated, non-contacting seals. It includes elements to remove particulate solid and liquid and volatile components from the gas... | 04/06/2004 |
| 6663341 | Process fluid recycle system for a compressor assembly A process fluid recycle system for compressor assemblies to recycle process fluid vapor flowing from one or more compressors to gear case(s) through shaft seal(s). The flowing process fluid is recycled back to the low pressure inlet of the compressor asse... | 12/16/2003 |
| 6543992 | Control arrangement A control arrangement (34) for controlling the size of a gap (30) between first and second components. The control arrangement comprises first magnet means (38) to be provided on the first component, and second magnet means to be provided on the second co... | 04/08/2003 |
| 6524059 | Turbo fluid machinery and dry gas seal used for the machinery With a turbo type fluid machine provided with a primary dry gas seal (9) and a secondary dry gas seal (10), abnormality in an amount of a working gas leaked from between a rotating ring (7a, 7b) adapted to rotate with a rotor (4) and a stationary ring (8a... | 02/25/2003 |
| 6375411 | Fluid displacement apparatus A gas turbine engine (10) has a compressor (14) which includes a rotary stage (16) supported for rotation by a plurality of wire wound stators (34). When the stators (34) are electrically energised, they exert Maxwell type magnetic forces on a magneticall... | 04/23/2002 |
| 6345954 | Dry gas seal contamination prevention system A seal gas pressure booster system for use with a gas compressor, particularly of the type used for boosting pressure in gas transmission, process or utility industries and which contains pressure about the shaft/casing interface with the use of dry gas s... | 02/12/2002 |
| 6273671 | Blade clearance control for turbomachinery A system includes a gas turbine engine having a shroud and a rotor with one or more blades. The rotor rotates within the shroud to pressurize a fluid during operation of the engine. An electromagnetic actuator is also included that is operable to move the... | 08/14/2001 |
| 6250887 | Reversible pump-turbine system A reversible pump-turbine system having a discharge adjustment device such as guide vanes, which make it possible to safely stop a pump turbine at the time of emergency shutdown in a generating mode by performing a close operation using an inlet valve eve... | 06/26/2001 |
| 6238178 | Water booster methods and apparatus Water is first caused to flow through a first passage and rotate a first impeller. Rotation of the first impeller is linked to rotation of a second impeller, which is in fluid communication with a second, discrete passage. Vanes on the second impeller are... | 05/29/2001 |
| 6210103 | Rotary seal and/or bearing For an impeller pump, the seal/bearing unit has two rotor-stator pairs of tapered sleeves arranged back-to-back. The sleeves have a spiral groove, and convey barrier-liquid from an entry-mouth in an entry-chamber to an exit-mouth in an exit-chamber. Havin... | 04/03/2001 |
| 6183195 | Single slot impeller bleed A structure and a method to form the structure are provided for an impeller bleed passage of a compressor for a gas turbine engine. The compressor has an impeller assembly which includes an impeller rotor rotatably supported within an annular shroud havin... | 02/06/2001 |
