Matches 1 - 50 out of 235 1 2 3 4 5 >


Match Document Document Title
7914258 Fluid mechanical converter  
The present teachings relate to a fluid mechanical converter having at least one energy-accumulator mass system that can be powered by a power drive. To provide a fluid mechanical converter, which...
7726945 Industrial ceiling fan  
A large industrial ceiling fan includes exceptionally long fan blades with blade tips that can be tilted upward to more broadly distribute the air. Such broad distribution might be particularly...
7717678 Spindle with overmolded bushing  
A propeller assembly is provided for mounting on a propeller shaft of a watercraft. The propeller assembly includes a housing structure having a plurality of blades projecting radially therefrom. A...
7708526 Propeller assembly incorporating spindle with fins and overmolded bushing  
A propeller assembly is provided for mounting on a rotatable propeller shaft of a watercraft. The propeller assembly includes a housing structure extending along a longitudinal axis. The housing...
7637792 Propeller torque transmitting device  
A shock absorber for a marine propulsion device is configured to provide an adapter, coupler and resilient device which can be assembled into a unit, or module, that can be inserted into a...
7354248 Elastomeric bearing elements for droop stop mechanisms  
An elastomeric bearing element having an outer race, an inner race, and at least two elastomeric segments secured between the inner and outer races is provided. The elastomeric segments are spaced...
7296975 Twist element for a bearingless rotor  
A twist element for a bearingless rotor is made mostly of composite fiber material and has a cross section with a substantially symmetric, flattened shape that has approximately the contour of a...
7223073 Boat propeller  
A boat propeller comprising a central hub member and an inner hub assembly that defines a longitudinally extending bore having an inner surface. The exterior surface of the central hub member is...
7175392 Ceiling fan motor with stationary shaft  
A ceiling fan motor includes a motor housing having an end wall and a side wall; a stator assembly mounted within the housing; a rotor assembly mounted within the housing to rotate relative to the...
7086836 Dual rate torque transmitting device for a marine propeller  
A torque transfer mechanism for a marine propulsion system provides a connector mechanism, a first torque transfer mechanism, and a second torque transfer mechanism. A plurality of rods can provide...
7052230 Pump assembly  
A pump assembly including a pump, a pump frame and a motor, the pump including a pumping member which is mounted in a pump housing, relative rotation of the pumping member with respect to the pump...
7008187 Rotor for cooling pumps, in particular for marine engines and relevant manufacturing process  
A rotor for cooling pumps is provided. The rotor is of the type which includes a core to be assembled on a shaft connected with an engine and a body, fitted in the core, provided with a plurality...
7008188 Shock-absorbing propeller assembly  
A method and apparatus is disclosed for connecting a drive axle to a propeller. A drive member is configured to mount on a drive axle, a tubular member is coupled to the propeller, and a resilient...
6979170 Vertical axis windmill and self-erecting structure therefor  
The present invention provides a structure comprising a blade attachment, a blade structure, an integrated driving shaft/generator for a wind system such as a vertical axis windmill, and a self...
6921249 Main rotor shear restraint  
A main rotor shear restraint that includes two spherical ball segments, two corresponding bearing outer races, and a spring system for loading the bearing outer races against the two spherical ball...
6908284 Fan attachment with dynamic out-of-balance equalization  
The invention is based on an axial fan with a hub region (4, 27) for connecting the axial fan with a driven shaft (20) of an electrical drive (21), whereby the axial fan is statically balanced by...
6799946 Propeller assembly  
A propeller assembly includes an interchangeable drive sleeve, an inner hub, a biasing member forcing the drive sleeve into contact with the inner hub, and a propeller including an outer hub in...
6773232 Progressive shear assembly for outboard motors and out drives  
A progressive shear assembly which is suitably adapted for connecting a marine propeller to a propeller drive shaft in such a manner that a selected resilience and torsional resistance of the...
6715989 Axial fan  
The present invention relates to an axial fan of the type comprising a hub, a plurality of arms extending radially outwardly from the hub and blade members, each blade member being secured to its...
6685432 Hub assembly for marine propeller  
A propeller assembly is provided for mounting in a rotatable propeller shaft of a water craft. The propeller assembly includes a hub structure extending along an axis and including an outer surface...
6672834 Removable propeller assembly incorporating breakaway elements  
A propeller assembly is provided for mounting on a rotatable propeller shaft of a marine vehicle. The propeller assembly includes a central adaptor mounted on the propeller shaft for rotational...
6666648 Directional elastomeric coupler  
An elastomeric coupler assembly having a helical elastomeric bearing movably supports an active slat relative to a main element. An inner elastomeric coupler assembly and an outer elastomeric...
6659818 Shock-absorbing propeller assembly  
A method and apparatus is disclosed for connecting a drive axle to a propeller. A drive member is configured to mount on a drive axle, a tubular member is coupled to the propeller, and a resilient...
6609892 Propeller hub  
A propeller assembly that includes a plastic bushing that is secured, e.g., bonded, to an inner hub and is configured to engage an outer hub of a propeller. More specifically, and in an exemplary...
6524069 Propeller assembly incorporating improved locking structure  
A propeller housing for a marine vehicle is provided which incorporates an improved locking structure for maintaining the propeller assembly on the drive shaft of the marine vehicle. The locking...
6478543 Torque transmitting device for mounting a propeller to a propeller shaft of a marine propulsion system  
A torque transmitting device for use in conjunction with a marine propulsion system provides an adapter that is attached in torque transmitting relation with a propulsor shaft for rotation about a...
6402472 Sail-type windmill wheel  
A sail-type windmill wheel is provided in which the area of the wheel facing into the wind is adjusted by an automatic variation of the blade angle of the sails. The wind wheel comprises a hub (22)...
6383042 Axial twist propeller hub  
A propeller assembly that includes an interchangeable drive sleeve, a resilient inner hub having a bore in which the drive sleeve is inserted, and a propeller including an outer hub in which the...
6358008 Propeller assembly for a marine vehicle  
A propeller assembly is provided for mounting on a rotatable propeller shaft of a marine vehicle. The propeller assembly includes a central hub mounted on the propeller shaft for rotation...
6309181 Fluid flow machine wheel and uses thereof  
A fluid flow machine wheel as for an immersion agitator or for a waste water, slurry, sewage or feces pump or for a recirculation pump, comprises a shaft hub having an inner hub portion and an...
6193572 Propeller assembly including a cantilever spring  
A propeller assembly that includes, in an exemplary embodiment, a cantilever spring for securing a propeller to a propeller shaft is described. In the exemplary embodiment, the propeller assembly...
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...
5967751 Propeller assembly for marine engine  
A propeller device includes a shaft rotatably supported in a marine engine, and a hub secured to the shaft and having three or more axially extending keys. A propeller housing includes three or...
5952836 Device and method for detecting workpiece fractures  
A device for detecting fractures or corrosion in a workpiece having a non-conductive outer surface. A thin film layer of metallic material comprising a plurality of separate crack detection wires...
5908284 Marine propeller with tube shape shock absorbing means  
A propeller is made up of a propelling unit having a plurality of blades, a driving unit for driving the propelling unit, and a plurality of deformable transmission units located between the...
5888108 Propulsion system for marine drive  
A propulsion system includes an improved propeller design which increases the durability of the propeller for enhanced rotational vibration damping, while simplifying the structure of the...
5630704 Propeller drive sleeve with asymmetric shock absorption  
A shock absorbing drive sleeve (402, FIGS. 28+) mounts a marine drive propeller (12) to a propeller shaft (22) and has an asymmetric spring rate such that the sleeve has a higher spring rate and...
5522743 Marine propeller with rubber bushing having lobular configuration  
Disclosed herein is a marine propeller comprising a marine propeller comprising an inner bushing adapted to be mounted on a propeller shaft for common rotation therewith and having an axis and an...
5494406 Propeller for boat  
A propeller for a boat having a plurality of recesses and a plurality of land portions arranged circumferentially alternately around an outer periphery of a propeller boss which is fitted over and...
5484264 Torsionally twisting propeller drive sleeve and adapter  
A marine drive having a drive sleeve and a drive sleeve adapter between the propeller shaft and the propeller hub where the drive sleeve absorbs the shock of the propeller striking an object by...
5477708 Vibration-isolated washing machine agitator  
An apparatus is provided which may be adapted for use as a washing machine agitator which isolates an agitator drive unit from the peak torques exerted upon vanes of the agitator due to...
5464323 Vibration isolation system for fan blade  
A vibration isolation assembly for use in securing a fan blade, particularly a ceiling fan blade, to a mounting surface having a plurality of mounting holes formed herein, the blade having an equal...
5354175 Wind turbine rotor hub and teeter joint  
A rotor hub is provided for coupling a wind turbine rotor blade and a shaft. The hub has a yoke with a body which is connected to the shaft, and extension portions which are connected to teeter...
5304037 Ceiling fan blade vibration isolation system  
A medallion-style blade iron assembly for use on a ceiling fan includes a vibration isolation system for eliminating transmission of vibration from the fan motor to the blades. The assembly...
5252028 Marine propeller assembly with shock absorbing hub and easily replaceable propeller housing  
A shock absorbing hub for a marine propeller assembly includes an inner spindle telescoped onto the splined drive shaft of the engine, an outer sleeve spaced radially outwardly of the spindle, and...
5244348 Propeller drive sleeve  
A shock absorbing drive sleeve (50) is provided by a molded plastic member directly mounting the propeller hub (14) to the propeller shaft (22). The sleeve has a rearward inner diameter portion...
5228834 Hub structure for a rotary wing aircraft  
A bearingless hub structure for a rotary-wing aircraft is provided, the structure including a hub body adapted to be securely connected to a rotor mast, a plurality of flexible beam members...
5207561 Device for assembling an impeller on a driving shaft  
An assembly or coupling arrangement for an impeller associated with a drive shaft. The impeller is supported by the drive shaft by a radial bearing having a small radial clearance. The bearing...
5201679 Marine propeller with breakaway hub  
A marine propeller with break away hub has an insert cavity with pentagonal cross section extending coaxially with the axis of rotation of the propeller, along at least a portion of the length of...
5118256 Blade retention apparatus with elastomeric preload  
Preloading and retention of a variable-pitch, light-weight propeller blade (10) are achieved through a retention assembly wherein the blade shank (20) is retained within a hub arm (24) with an...
Matches 1 - 50 out of 235 1 2 3 4 5 >