Matches 1 - 50 out of 96 1 2 >
Match Document Document Title
7500831 Self balancing fan  
A fan ( 10 ) is disclosed having an electric motor ( 13 ) which rotatably drives an annular array of blade irons ( 14 ) each having a blade ( 15 ) mounted thereto. Each blade iron has a motor...
7481624 Butt connection for hollow profile members  
A butt connection of divided hollow profile members, which is suitable in particular for rotor blades of wind power installations, comprises a multiplicity of straps which are arranged along the...
7281899 Quick assembly blades for ceiling fans  
Easy to attach and detach blades for overhead ceiling fans. A first version has a ceiling fan blade with keyhole slots that fit over flat topped fasteners on a mounting arm. Pulling the blade away...
7214035 Rotor for a turbomachine  
A rotor for a turbomachine. The rotor comprises a hub including a peripheral surface, a first side surface, and a second side surface. The hub defines a plurality of cavities, each one of the...
7192255 Device for mounting blades on a propeller hub with preloading of the bearings  
This device for mounting a propeller blade in a hub, of the type in which a blade base is mounted in rotation in a hub housing by means of at least two bearings and where a preloading device...
7114926 Water pump for cooling engine  
A water pump for cooling an engine in which an impeller accommodated in a pump housing provided on an engine body is mounted on an end of a rotational shaft rotatably supported on the pump housing...
7086831 Vane mounting  
A vane mounting arrangement 21, 31 is provided in which a vane 22, 32 is secured through a mounting end 23, 33 within an aperture 25, 35 formed in a mounting platform 24, 34 . An...
6932576 Quick connect ceiling fan blade  
A ceiling fan ( 10 ) is disclosed having a motor housing ( 11 ) with an electric motor to which is mounted an annular array of blade irons ( 14 ) each having a blade ( 15 ) mounted thereto. Each...
6857854 Quick connect blade system  
A ceiling fan quick connect blade system ( 10 ) is disclosed which is coupled to a conventional ceiling fan electric motor ( 11 ) having a lower portion ( 12 ). The motor lower portion has an...
6821091 Securing device  
A securing device for securing a connecting arm to a ceiling fan blade. The blade includes a hole through which a male member of the arm is inserted. The securing device includes a plate having an...
6726453 Quick-release fan blade mounting structure for ceiling fan  
A fan blade mounting structure is constructed to include a first coupling unit fixedly located on the rotor of a fan motor assembly, the first coupling unit having a spring-supported hook and a...
6692231 Molded fan having repositionable blades  
The present invention provides a fan having a molded, substantially non-metallic hub and a plurality of fan blades attached thereto. The fan blades can be rotationally indexable relative to the...
6537031 Marine propeller with detachable blades  
A marine propeller comprises a hollow hub body ( 11 ), a plurality of propeller blades ( 16 ) and a plurality of fastening devices ( 19, 21 ) for each propeller blade ( 16 ). Each fastening device...
6457853 Impeller device and method  
An impeller for use in a mixing apparatus having a rotating shaft has at least one longitudinal member extending substantially radially from the shaft; and a plurality of individual impeller...
6352410 Variable-pitch boat propeller with easy-change vanes  
A variable-pitch boat propeller has a hub centered on and rotatable about a hub axis and formed with a radially out-wardly open pocket having a predetermined inside diameter and centered on a vane...
6318964 Complex cooling fan with increased cooling capacity  
A complex cooling fan includes an upper fan including an upper fan and a lower fan, the upper fan including a first cylindrical body, a plurality of first blades extending outwardly from the...
6312223 Marine propeller  
A marine propeller includes a hub defining an axial direction of the propeller, a plurality of adjustable propeller blades disposed around the hub, and a blade setting adjusting arrangement. Each...
6309183 Blade arm  
Easy to attach and detach blades for overhead ceiling fans. One version has a fan blade with keyhole slots that fit over flat topped fasteners on a mounting arm. Pulling the blade away from the arm...
6250884 Ceiling fan  
A ceiling fan includes a motor having a stator and an annular rotor surrounding concentrically and radially spaced apart from the stator. An upper cover includes an upper major wall mounted on an...
6220820 Bearing preload  
A bearing arrangement, for example, for a variable pitch propeller, has a fluid operated actuator (42, 34, 40) for causing relative movement between bearing surfaces of races (12, 32) so as to...
6142735 Variable-pitch propeller, especially for sport craft  
A variable-pitch propeller, especially for a sport board, has angularly displaceable blade support plates which can be rotated about respective radial axes. The plates are provided with radially...
6113352 Hingeless rotor with precompressed half-bearings supporting blade root oversleeves on torsionable blade root strips  
Each blade of the rotor has a rigid root oversleeve connected to a torsionable and flexible root strip by two laminated, spherical support half bearings, fixed by their outer frame with double...
6109877 Turbine blade-to-disk retention device  
The invention provides a turbine blade retention device installed in an axially extending gap between the blade root bottom and the slot floor. The retention device has two parts: a blade root...
6095753 Structure for mounting blades of a ceiling fan  
An improvement in the structure for mounting blades of a ceiling fan, characterized in that a motor comprises a bottom formed with a plurality of brackets each having a recess, the recess having an...
6059531 Impeller and fan blade attachment assembly  
In a fan including a hub mounted for rotation and a plurality of fan blades, an attachment assembly for detachably engaging at least one of the plurality of fan blades with the hub, the attachment...
6039540 Fan blade assembly of a ceiling fan  
A fan blade assembly includes a mounting arm with a mounting end formed with a plurality of engaging posts. A blade member has a plurality of mounting holes, each having a larger bore portion and a...
6022191 Fan blade mounting  
A fan blade mounting system for large air-moving fans includes a radially extending hub strut, a blade root member pivotally coupled to an end of the hub strut for receiving a blade skin, and a...
6015264 Preloaded retention assembly for aircraft propeller blade retention  
A propeller blade retention assembly for use with a propeller having a hub rotatable about a propeller axis, is disclosed. The assembly includes a blade receiver for mounting the blade to the hub...
5997253 Adjustable pitch propeller  
An adjustable propeller is provided with a receptacle on its hub which is shaped to receive a base portion of a propeller blade. First and second pluralities of alignment devices are provided to...
5980353 Connecting device for connecting a fan blade to a rotor of a motor if a ceiling fan  
The connecting device includes rotor and blade mounting segments each secured on a rotor and a fan blade at a respective connecting end thereof. A socket end of the rotor mounting segment extends...
5873701 Device for connecting brackets and a motor of a ceiling fan  
A device for connecting brackets and a motor of a ceiling fan includes a ring element fixedly connected to an underside of the motor and having a plurality of protrusions extending from an...
5545011 Angle adjustable vane suspension  
A vane suspension for angle adjustable mounting of a vane (6) in a hub (1), comprising a seat (3) in the hub and a mounting part on the vane (6). The mounting part on the vane comprises a stud (16)...
5445497 Variable pitch propellers  
A variable pitch propeller primarily for marine use which includes a hub for mounting on a driven shaft. The hub has a plurality of blades which are mounted to bearing rings which are carried in...
5173023 Wind turbine generator blade and retention system  
A propeller blade cuff having a root end and a first annular flange at the root end, and a wind turbine generator hub having a second annular flange to be attached to the first flange comprising a...
5152606 Mixer impeller shaft attachment apparatus  
A mixer impeller, which is adapted to mix and blend liquids and liquid suspensions in industrial and commmercial applications and is subject to forces which tend to work the impeller loose from...
5015150 Arrangement for mounting a pivotable propfan blade  
In an arrangement for mounting a shrouded pivotable propfan blade at a rotor, the propfan blade is held in a dovetail mounting of a blade carrier and, by using a first securing device is fixed with...
4984968 Variable pitch propellers  
An improvement in a variable pitch propeller to allow replacement of propeller blades under water without water intruding into the mechanism in the propeller hub and without a substantial quantity...
4943209 Hub for a plastic blower impeller  
A plastic blower impeller including an integrally formed plastic hub having three axial slots therein equidistantly located around the hub. A bore in the hub includes transverse ribs for engaging...
4934904 Axial fan  
An axial fan construction wherein individual blade assemblies are secured within apertures in the fan hub. Fasteners extend between a retaining member and a blade base, with each blade base...
4877376 Attachment of a rotor blade of fiber reinforced plastic to a metal rotor hub  
A fiber reinforced thermoplastic propeller is attached to a metallic rotor by an integral shank at the base of the propeller. By virtue of the manufacture of the shank and the propeller as an...
4721008 Adjustable steering wheel hub  
An adjustable steering wheel hub in an automobile steering mechanism comprises a first hub member and a second hub member. The first hub member includes a circumferentially splined bore adapted to...
4692097 Propeller with removable and adjustable blades  
A propeller according to the invention has a hub centered on and rotatable about a hub axis and formed with a bore extending along the axis and with a plurality of identical, radially outwardly...
4643643 Apparatus for adjusting and locking pitch of a variable pitch propeller on a ship  
Apparatus for adjusting and locking the pitch of a variable pitch propeller. Within a propeller shaft, a hydraulic piston is provided which drives a rod, a plate, and levers to rotate the propeller...
4636141 Hydroelectric device  
A hydroelectric device wherein a water wheel having radial paddle boards is partially submerged in a moving stream of water, and driven by the water current to operate an electric generator. The...
4634341 Axial flow fans  
There is disclosed an axial flow fan having blades which may be rotated about their axes to permit their pitches to be adjusted and which may be moved in a radial direction to adjust the clearance...
4619401 Controlled droplet applicator  
An improved controlled droplet applicator for applying fluid in droplet form to a target area. The applicator includes a rotary atomizer for generating fluid droplets of ideal size and density. The...
4610600 Adjustable-pitch axial fan wheel  
An adjustable-pitch axial fan wheel. A hub has an outer surface forming a portion of a sphere. A plurality of blades are attached to the hub, each blade having a substantial flange at the base...
4386886 Adjustable vortex pump  
A vortex pump which has been converted from a centrifugal pump by interposing an annular spacer between the power frame and casing of the centrifugal pump to provide space for a vortex impeller...
4285637 Propeller assembly  
A propeller assembly is provided in which the propeller blades are adjustable both rotatably and longitudinally. Pitch angle of the propeller blades may be adjusted by rotating the blades in the...
4275993 Composite fan blade assembly  
A longitudinal extruded aluminum fan blade having an integral elongated shank extending from one blade end is connected to a pair of elongated mounting members having abutting surface portions in...
Matches 1 - 50 out of 96 1 2 >