Match Document Document Title
3820918 SUPERSONIC FAN BLADING  
3816024 MIXER IMPELLER BLADE  
A light weight but strong blade for a mixer impeller is formed of relatively thin steel having a hat cross-section with a thin steel plate covering the outer portion of the cavity formed by the...
3799699 REVERSIBLE FAN ASSEMBLIES AND INTEGRAL BLADE AND TRUNNION UNITS  
For a reversible fan, a blade is manufactured from a tubular member of a proper gage and diameter by spreading or flattening one end into a blade shape and swaging the other end of the tubular...
3798102 METHOD OF SEALING THE TIP END OF A HELICOPTER ROTOR BLADE SPAR  
3786583 AIR MOTION APPARATUS  
An air motion apparatus particularly adapted to move in response to air currents in a fascinating and eye-appealing manner, having a body means formed from a generally frusto-conical container...
3784321 PUMP IMPELLERS  
An impeller blank of conventional design, has its blade geometry altered by trial and error to create a blank of substantially higher efficiency and one which can be trimmed to meet a wider range...
3731515 METHOD OF FORMING AN INTEGRAL BLADE AND TRUNNION UNIT FROM A TUBULAR MEMBER  
For a reversible fan, a blade is manufactured from a tubular member of a proper gage and diameter by spreading or flattening one end into a blade shape and swaging the other end of the tubular...
3728045 HELICOPTER BLADE  
To alleviate the roll moment established during helicopter forward flight, it is necessary to vary the blade pitch angle around the azimuth with reduced angle on the advancing side and increased...
3724968 AXIAL SUPERSONIC COMPRESSOR  
An axial supersonic fluid compressor has ducts incorporating both mobile and fixed blades that are designed to receive essentially normal shock waves. This is accomplished by having the angles of...
3721507 BLADE FOR HIGH SPEED HELICOPTER  
To alleviate a helicopter blade instability which manifests itself as a submiltiple oscillation of the rotor tip path plane during high speed flights, the blade tip is thinned between its inboard...
3706430 AIRFOIL FOR AIRCRAFT  
An airfoil for fixed and rotary wing aircraft comprising a continuous upper surface that joins with a generally planar portion of the under surface at the leading edge to form the apex of a...
3704500 METHOD OF CORRECTING A NUMBER OF REVOLUTION OF A SCREW PROPELLER  
A method of adjusting the number of revolutions of a screw propeller having the steps of cutting the trailing edge of each blade of the propeller from and along the trailing edge, and working and...
3697193 FLUIDFOIL SECTION  
Airfoil sections having improved lift characteristics are described for use as propeller blades for air or marine craft for wings of aircraft for hydrofoil sections of hydrofoil vessels and for...
3679323 MIXING AND DISPERSING DEVICE  
A mixing and dispersing device in which an elongated shaft has connected thereto a rigid blade which undulates about a plane that is perpendicular to the shaft, to form a plurality of sub-blades a...
3670382 METHOD FOR PRODUCING A REINFORCED RESINOUS IMPELLER AND PRODUCT  
A method of making an impeller which is particularly adapted for use in a centrifugal pump and which has generally spirally extending vanes which extend outwardly from a central portion which...
3659959 AIR FAN IMPELLER BLADE ASSEMBLY  
This impeller is constructed from two, identical, preformed metal blanks, which have raised center or hub sections which are secured to one another by riveting or the like. Opposite ends of each...
3653110 METHOD OF FABRICATING HOLLOW BLADES  
A method of making jet engine turbine, fan or compressor blades containing longitudinal internal lightening openings by locating a plurality of rib elements between exterior cover plates, locating...
3601876 METHOD OF MANUFACTURING A ONE-PIECE FAN  
A method of manufacturing a one-piece axial flow fan including the following steps: (1) forming one end of a cylindrical tube into a partially closed flat end surface having an opening therein of...
3600781 METHOD OF PRODUCING A STATOR VANE FOR A GAS TURBINE ENGINE  
A method of making stator vanes for a gas turbine engine comprises forming the radially outer surface of the vane platform, and/or the radially inner surface of the shroud of the vane, with a...
3580039 DEVICE FOR MANUFACTURING BLADES FOR THE BLADE WHEEL OF AN AXIAL FLOW MACHINE  
Blades which are to be attached to the blade wheel of an axial flow machine, have a paddle part and an attachment surface which are simultaneously shaped in two molds. One of these molds shapes...
3576070 WARPAGE MINIMIZING PROCESS FOR MACHINING METAL CASTINGS  
A process of machining metal castings to minimize warping, especially useful in manufacturing propellers. When the casting is mounted for machining its shallow parts are restrained from warping...
3572034 FABRICATED TWO-PIECE STATOR ASSEMBLY FOR HYDROKINETIC TORQUE CONVERTERS  
A bladed stator assembly comprising two circular bladed sections situated in adjacent relationship, each section complementing the other, one section defining a fluid flow entrance region and the...
3565548 TRANSONIC BUCKETS FOR AXIAL FLOW TURBINES  
3545883 HYDRODYNAMIC COUPLING  
3544081 APPARATUS FOR MIXING FLOWABLE MATERIALS  
3536417 IMPELLER FOR AXIAL OR RADIAL FLOW COMPRESSORS  
3531221 VENTILATOR WITH AXIAL PROPELLER WHEEL  
3529631 CURVED CHANNELS THROUGH WHICH A GAS OR VAPOUR FLOWS  
3514215 HYDROPROPELLER  
3494424 AIRCRAFT SUSTAINING ROTOR SYSTEM AND ROTOR BLADE THEREFOR  
RE11399 Title is not available  
D136162 Title is not available  
D195728 Title is not available  
D087188 Title is not available  
RE05341 Title is not available  
D141573 Title is not available  
D145227 Title is not available  
D158058 Title is not available  
D221792 Title is not available  
0004454 Title is not available  
D157474 Title is not available  
D141589 Title is not available  
3466725 METHOD OF FORMING A HYDROFOIL  
3458176 EQUIPMENT FOR THE INTRODUCTION OF GASES INTO FLUIDS  
3446288 HIGH SPEED ROTOR  
3442220 ROTARY PUMP  
3412611 Method and apparatus for making an aerofoil-shaped blade  
3397869 Hydrofoil agitator blade  
3384026 Pump apparatus  
3380170 Gauge