Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 5443590 | Rotatable turbine frame A rotatable turbine frame includes annular outer and inner bands having a plurality of circumferentially spaced apart struts extending therebetween. An annular drive shaft is fixedly joined to the inner band for transmitting output torque therefrom, and t... | 08/22/1995 |
| 5431532 | Blade containment system A blade containment system is disclosed which includes an annular casing positioned radially outward of the blades and in surrounding relationship therewith, the annular casing including a plurality of composite tapes bonded to the outer or inner radial s... | 07/11/1995 |
| 5431517 | Apparatus and method for securing a bracket to a fixed member An apparatus for securing a bracket to a fixed member, the fixed member and the bracket each having at least one opening therethrough, where the apparatus includes a bolt having a threaded body and a head at a first end of the threaded body, where the bol... | 07/11/1995 |
| 5420788 | Method for processing data in 2D and 3D computed X-ray tomography A method of image processing is provided for generating an image of an object in a computer X-ray tomography apparatus having an X-ray source and a detector. The method desirably permits relatively coarse spacing between adjacent detector views and corres... | 05/30/1995 |
| 5419681 | Film cooled wall A wall adapted for use in a gas turbine engine between a first and a hotter second fluid includes a first side over which is flowable the first fluid, and an opposite second side over which is flowable the second fluid. An elongate notch includes a forwar... | 05/30/1995 |
| 5419181 | Method and apparatus for inspection of open face honeycomb structures A method and apparatus for detecting defects in a structure formed of a honeycomb matrix bonded to a support surface including providing a probe body including means defining a fluid passage forming a supply port to an exterior surface of the probe body; ... | 05/30/1995 |
| 5415439 | Misalignment fitting A coupling for joining a pair of conduits, one of the conduits having a flared end and the other of the conduits having a circumferential flange with a surface conforming generally for mating with the flared end of the one of the conduits. The coupling co... | 05/16/1995 |
| 5399911 | Pulse detection circuit A pulse detection circuit detects one different pulse within a string of similar pulses for a once per revolution index. The pulse detection circuit comprises a DC averaging means for generating a first threshold voltage from a raw signal. An average comp... | 03/21/1995 |
| 5397181 | Compressor discharge temperature sensing system A compressor discharge temperature sensing system senses compressor discharge temperature for a compressor located within a housing. A sensor mounted external to the flow path receives high pressure air discharged from the compressor. The high pressure ai... | 03/14/1995 |
| 5396791 | Engine testing mounting adaptor A flexible adaptor mounts an aircraft gas turbine engine to a test stand. The adaptor includes an upper frame configured for mounting on the test stand, and a lower frame spaced from the upper frame and configured for supporting the engine. A spring flexi... | 03/14/1995 |
| 5396333 | Device and method for observing and analyzing a stream of material A device for observation and analysis of a cross-sectional portion of a stream of material, which may be either a particle or a fluid stream, includes a laser light source for generating a beam of light. A focusing lens is disposed in an optical path betw... | 03/07/1995 |
| 5394689 | Gas turbine engine control system having integral flight Mach number synthesis method A gas turbine engine digital electronic control is disclosed which is capable of maintaining safe, efficient engine thrust levels in the event of loss of communication with an aircraft flight computer. Specifically, a limited number of engine sensor input... | 03/07/1995 |
| 5392812 | Offset hinge flapper valve An offset hinge flapper valve has a single valve plate rotatably mounted in the flow channel of a cast housing. The valve plate is freely rotatable about a pivot pin welded to the housing. The valve plate has first and second co-planar parts extending on ... | 02/28/1995 |
| 5391256 | Hollow airfoil cavity surface texture enhancement A method and passage system is applicable to hollow structures, such as hollow rib core fan blades, for removing alpha case and contamination, for improving surface texture, and for smoothing diffusion bonded joints to reduce notches and flaws, after fabr... | 02/21/1995 |
| 5388962 | Turbine rotor disk post cooling system The present invention discloses a system for cooling turbine rotor disk posts in a gas turbine engine with a preferred embodiment illustrating an application for a high pressure turbine stage 1 rotor disk. The disk includes a plurality of circumferentiall... | 02/14/1995 |
| 5388959 | Seal including a non-metallic abradable material A fan assembly for a gas turbine engine for aircraft has a stator casing made of a first material and an annular abradable seal structure made of a second material comprising an epoxy foam having heat expandable, thermoplastic microballoons filled with a ... | 02/14/1995 |
| 5387085 | Turbine blade composite cooling circuit A gas turbine engine airfoil includes a serpentine cooling circuit with a branch cooling circuit disposed in parallel therewith for independently controlling discharge of cooling air therefrom through respective discharge holes in pressure and suction sid... | 02/07/1995 |
| 5386184 | System for use with an electronically commutated electrical machine A modified inverter/converter unit electronically commutates a switched reluctance machine to provide multiple voltage levels for engine and aircraft applications. A set of power switching transistors apply an exciting current to windings in the switched ... | 01/31/1995 |
| 5381655 | Admission mixing duct assembly A variable cycle jet engine is provided with a mixing duct assembly which mixes core engine exhaust gas with bypass air when the engine is operating in a turbofan mode and which blocks flow from the core engine and isolates the core engine from the bypass... | 01/17/1995 |
| 5379970 | Mounting bracket arrangement A mounting means is adapted to hold a large component while it is being bolted to a frame. A hook is attached to the component and adapted to suspend the component in a first position. A bracket is attached to the frame and is adapted to receive the hook,... | 01/10/1995 |
| 5379689 | Composite repair press for manufacturing and repairing a workpiece made from a composite material A multipurpose, automatic, self-contained device for manufacturing or repairing a workpiece made from a composite material includes a frame having an upper frame member and a lower frame member. A mechanical apparatus for providing a compressive force is ... | 01/10/1995 |
| 5379585 | Hydraulic control system for a jet engine nozzle A method of controlling a system is adapted to control flow to throat nozzle and vectoring nozzle actuators. The method comprises the steps of summing a plurality of signals representative of flow to the vectoring nozzle actuators with a signal representa... | 01/10/1995 |
| 5373222 | Datuming device for measuring displacements not parallel with a displacement probe's line of travel A datuming device is provided for use with a machine tool having a movable member which is guided under computer numerical control. The datuming device permits measurement of displacements in a direction not parallel with a displacement probe's line of tr... | 12/13/1994 |
| 5370427 | Expansion joint for fluid piping with rotation prevention member An expansion joint for connecting first and second fluid-carrying pipes comprising first and second annular couplings which are operably affixable to respective ones of the pipes. In a preferred embodiment the couplings include cylindrical bores of substa... | 12/06/1994 |
| 5369952 | Variable friction force damper A variable friction force damper utilizes geometric variations in a sliding surface to vary the frictional force. In particular, variation in thickness of the member on which the sliding surface is formed produces a corresponding variation in the displace... | 12/06/1994 |
| 5369882 | Turbine blade damper A generally wedge-shaped vibration damper for rotor blades of a gas turbine engine has a pair of scrubbing surfaces and is loosely retained in a pocket incorporated in the rotor blade platform. The pocket is partly defined by a plurality of surfaces which... | 12/06/1994 |
| 5362221 | Manufacturing device with an automatic self-aligning connector for attachment to a docking station A manufacturing device is disclosed which has a connector which automatically self-aligns with a mating connector of a docking station. The device includes a receptacle for receiving and holding an unfinished workpiece. At least one connector is provided ... | 11/08/1994 |
| 5357450 | Automated maintenance system for computer numerically controlled machines The invention provides a system and method for automatically, accurately, and repeatable aligning computer numerically controlled (CNC) movable machine components with respect to their respective degrees of freedom of motion. One embodiment of the inventi... | 10/18/1994 |
| 5353685 | Redundant fluidic multiplexer The reliability of a fluid multiplexed actuation system is increased by arranging a pair of fluidic multiplexers in a parallel fluid flow path between a selector valve and several fluid actuators. Position sensors associated with the fluidic multiplexers ... | 10/11/1994 |
| 5349850 | Instrumentation light probe holder An instrumentation light probe holder for use in observing and measuring operating characteristics of rotating blades of a gas turbine engine during engine operation or rotating components of a machine during operation is disclosed. The holder includes an... | 09/27/1994 |
| 5345514 | Method for inspecting components having complex geometric shapes A method for inspecting a component of a gas turbine engine or the like having a plurality of similarly shaped structural portions, such as the gear teeth of a gear, the dovetail slots of a turbine disk or the like, includes the steps of: scanning a surfa... | 09/06/1994 |
| 5340280 | Dovetail attachment for composite blade and method for making A fan blade and/or propeller blade such as found in a gas turbine engine having a dovetail former having sections of composite unidirectional wrap material wrapped about the dovetail former from the concave to the convex side of the airfoil and filling cu... | 08/23/1994 |
| 5326077 | Butterfly valve seal retainer A butterfly valve comprises a butterfly vane including a radial notch. A seal groove is situated in the vane and a seal including tabs is disposed within the seal groove wherein the tabs are adapted to fit within the notch. The tabs are designed to bear a... | 07/05/1994 |
| 5316450 | Fixed cam variable delivery vane pump The discharge flow from a rotary vane pump is metered by directing a portion of the pump discharge back into the pump inlet area. A servo controlled actuator apportions the relative amounts of inlet fluid and returns fluid which enters the vane cavities. ... | 05/31/1994 |
| 5305597 | Gas turbine fuel control An electronic fuel control for a gas turbine engine monitors the mass density of the fuel. As the mass density of the fuel varies when the fuel temperature changes or when the fuel type changes, the electronic fuel control adjusts an initial mass density ... | 04/26/1994 |
| 5267435 | Thrust droop compensation method and system A control system and method provide thrust droop compensation in a gas turbine engine. A droop compensation signal is generated for increasing turbine exit temperature T5 based on a predetermined model, and is selectively reduced for limiting t... | 12/07/1993 |
| 5259188 | Method and system to increase stall margin A method and system are provided to bias a control subsystem of a gas turbine engine having a fan and compressor. The method includes the steps of measuring an operating parameter of the engine and differentiating this parameter over time to obtain a deri... | 11/09/1993 |
| 5259186 | Gas turbine fuel control An electronic fuel control for a gas turbine engine monitors the mass density of the fuel. As the mass density of the fuel varies when the fuel temperature changes or when the fuel type changes, the electronic fuel control adjusts an initial mass density ... | 11/09/1993 |
| 5245819 | Gas turbine engine fuel and hydraulic fluid pumping system An arrangement for a main fuel pump, a backup fuel pump, a main hydraulic pump, and a backup hydraulic pump, typically for a as turbine engine in an aircraft, includes an isolated fuel and hydraulic fluid system and a backup pumping arrangement employing ... | 09/21/1993 |
| 5233512 | Method and apparatus for actuator fault detection A method for fault detection in a closed loop feedback control system for an actuator includes modeling the actuator for providing a model output simulating the actuator output in response to a model input which is also the actuator input, and comparing t... | 08/03/1993 |
