Class 416/169R - HAVING CLUTCH OR BRAKE MEANS

Subclass of Class 416 - Fluid reaction surfaces (i.e., impellers)
Definition: Apparatus comprising means which selectively (1) engages
No. of patents: 95
Last issue date: 05/15/2012

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Number	Title	Issue Date
8177510	Method and system for braking in a wind turbine A braking system for a wind turbine is provided. The system includes one or more motors for driving a part of the wind turbine, a first group of brakes for braking the part of the wind turbine, and a second group of brakes for braking the part of the wind turbine. T...	05/15/2012
8096773	Vertical axis wind turbine A vertical axis wind turbine has a stator shaft, an electrical generator, a rotating shaft and multiple blades. The electrical generator is rotatably mounted around the stator shaft. The rotating shaft is mounted on and protrudes from the electrical generator. The m...	01/17/2012
8038402	Compact geared drive train A drive train for a wind turbine is provided. The wind turbine includes a rotor hub and one or more blades. The drive train includes a first stage carrier connected to the rotor hub. The first stage carrier includes one or more first stage planet gears that interact...	10/18/2011
7544045	Cooling tower fan locking apparatus A mechanical locking apparatus is assembled to an existing cooling tower fan assembly and is operable to brake the drive shaft of the fan assembly to stop rotation of the fan and isolate the fan from rotating in high winds. ...	06/09/2009
7410344	Ram air turbine centrifugal brake A brake system for a ram air turbine (RAT) causes the RAT to slow or lock if the RAT achieves an over-speed condition with a centrifugal force operated trigger system that actuates a compression type brake pack to slow or lock the turbine hub. ...	08/12/2008
7381030	Wind turbine shroud A vertical axis wind turbine assembly, such as a Savonius, typically mounted on a watercraft, utilizes a number of different shroud configurations to substantially preclude rotation when docked. Collapsible “curtains” mounted above the wind engaging elements, pr...	06/03/2008
7347667	Wind power installation This relates to a wind power installation comprising a pylon (tower) and a rotor arranged on the pylon and having at least one individually adjustable rotor blade. The wind power installation further comprises a device to detect the wind direction, a device to detec...	03/25/2008
7306426	Protection mechanism for flow inducing device A rotary flow inducing device having a rotary flow inducing blade and a protection mechanism including a trigger to move the protection mechanism between an operational flow configuration and a protective no-flow configuration with respect to the rotary flow inducin...	12/11/2007
7300385	Control strategy for a dual crankshaft engine coupling arrangement A control method for coupling a first engine to a second engine in a vehicle includes determining a current position of a throttle body that regulates power output from the first and second engines. Determining a set speed for the first and second engines that corre...	11/27/2007
7239035	System and method for integrating wind and hydroelectric generation and pumped hydro energy storage systems An integrated, wind-pumped hydro power generation system includes at least one wind turbine generator device configured to generate output power for a common bus, and at least one hydro generator device configured to generate output power for the common bus. The hyd...	07/03/2007
7186083	Wind energy conversion device A wind energy conversion device includes a propeller in which each of the propeller blades includes a proximal (radially inward) non-airfoil mounting section, a medial section and a distal tip section mounted to pivot relative to the medial section about a pitch axi...	03/06/2007
7168533	Rotor brake as well as rotor and rotary-wing aircraft with such a rotor brake A rotor brake includes a braking force absorption element non-rotatably connected to a rotor shaft; a stationary brake actuator for actuating a braking force transmission element that is functionally coupled to the braking force absorption element so as to exert a b...	01/30/2007
7014387	Shaft drive coupling A single piece coupling device for connecting a load component to a rotatable shaft. The device comprises a sleeve having a bore for containing a rotatable shaft, an externally threaded portion and a tapered engagement face on the outer surface of the sleeve. Radial...	03/21/2006
6935841	Fan assembly A fan assembly includes a vertical axis wind turbine (VAWT) which is coupled to an air extraction or air supply fan. The VAWT is located above and is coupled coaxially to the fan. The fan assembly also includes an auxiliary turbine to provide start-up torque to init...	08/30/2005
6910873	Self regulating rotor A machine that is a self regulating rotor with a set of cups or vanes that are pivotally attached about a central axis such that they form a closed three dimensional shape when closed, and when rotated into an open orientation form an S-shaped rotor, when viewed as ...	06/28/2005
6872045	Apparatus and method for fluid drive conversion A fluid drive conversion system having a plurality of flat foils rotatably connected to a vertical shaft such that the foils are generally vertical in position, pivot about a vertical axis, are a predefined distance, at least about one quarter of the width of a foil...	03/29/2005
6857846	Stackable vertical axis windmill A stackable, vertical axis windmill comprised of a braced external frame that enables stacking of multiple windmill assemblies. Couplings are located on both ends of the vertical rotor shaft to enable stacking and the transmission of power, an internal wind flow cav...	02/22/2005
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 which the drive sleeve and inner hub are inserted. In an exemplary embod...	10/05/2004
6551053	Hydro-electric generator A hydro-electric generator for producing electricity in areas of flowing water. The hydro-electric generator includes a flotation device. An electric generator is mounted on the floatation device. A paddle wheel is rotatably mounted to the floatation devi...	04/22/2003
6537029	Electric fan capable to rotate for 360 degrees An electric fan capable to rotate for 360 degrees includes a control device consisting of a left and a right shell combined together. The shells have a L-shaped steel plate inside to fix a motor and a speed-reducing device. The speed-reducing device has i...	03/25/2003
6461212	Automatic start control and clutch of toy engine powered by high pressure gas A starting device of a toy engine comprises a spring, a starting piece, and a unidirectional bevel gear. The motion of the spring between the two fulcrums serves to ensure that the control rod is kept securely in place at a disengaging position and an eng...	10/08/2002
6428274	Drive mechanism for adjusting the rotor blades of wind power installations A device for adjustment of rotor blades which are pivotally mounted on a rotor hub of a wind power plant, with a drive for turning the rotor blades and a lockout which is connected to each rotor blade, the lockout being an activatable lockout which in the...	08/06/2002
6422814	Fan brake for removable module Fan brakes for decelerating blower impellers particularly for modular equipment enclosures are described. A module includes a blower having an impeller with a plurality of blades. The brake engages the impeller body or blades when the module is at least p...	07/23/2002
6358009	Fan blade assembly and method of balancing the same A method and apparatus are used to balance an open blade fan of the kind used with trucks, diesel engine driven generator sets, and the like. An apparatus is used to spin the fans and a vibration sensor senses vibrations and a light beam is used to indica...	03/19/2002
6193464	Active brake control for rotor/wing aircraft The present invention comprises a feedback-controlled braking apparatus that applies a modulated braking force that smoothly decelerates a rotating shaft such that it comes to rest at a precise location. According to a preferred embodiment of the present ...	02/27/2001
6161799	Rotor blade lock for rotary/wing aircraft The present invention comprises an apparatus for locking both rotor blades of a rotor/wing aircraft at a common point to form a rigid wing having a uniform bilateral aerodynamic response. In one embodiment of the present invention the rotor blades of a ro...	12/19/2000
6148605	Method and device for reversing the thrust of very high bypass ratio turbojet engines A high bypass ratio turbojet engine comprising a fan rotated by the shaft of a low pressure turbine via a speed reducer is provided with a thrust reverser device by providing the speed reducer with first and second epicyclic gear trains which are mounted ...	11/21/2000
6146097	Fan blade assembly for use with a ceiling fan drive unit A fan blade assembly for a ceiling fan has lightweight, oversized blades formed by a support frame with a blade covering material stretched over the frame. A lighting fixture attached to the support frame rotates with the fan blades. The fan blades are co...	11/14/2000
6099255	Fluid power storage device A fluid power storage device is provided in which, the prime mover directly or through a slow-down gear train winds up a spring device having a latch attached therein. The spring device can be a spiral spring or simply a rubber band. When the stored up en...	08/08/2000
6077041	Reduction drive and torque-limiting clutch for autogyro aircraft A rotary wing aircraft has an engine, an engine-driven shaft and a main rotor. A rotor drive shaft is mounted to the main rotor and extends substantially 90 degrees to the engine-driven shaft. A drive pulley is mounted to the engine-driven shaft. A driven...	06/20/2000
6077042	Helicopter rotor brake A helicopter rotor brake having a disk connected angularly to a helicopter rotor; a brake caliper having friction members cooperating with the disk; and an actuating device for moving the brake caliper, parallel to the plane of the disk, between a work po...	06/20/2000
6050790	Electric waving fan with oscillating multi-direction fan vane element An electric waving fan includes a single air moving fan vane element, a motor for generating power, a transmission apparatus for converting the power to motion, and a power output assembly for moving the single fan vane element simultaneously in two direc...	04/18/2000
6022193	Propeller assembly for an underwater device In an underwater device adapted to sink in water, the device having a proler disposed in a tail cone portion thereof and operable to rotate in a first direction to move the device toward a surface of the water, an assembly for preventing the propeller fr...	02/08/2000
6019578	Variable diameter rotor blade actuation system A rotor blade actuation system is disclosed for controlling extension and retraction of an outboard blade section of a rotor blade by varying the speed and direction of rotation between a main rotor shaft and a blade actuation shaft. The rotor blade actua...	02/01/2000
6000907	Fluid-activatable vane for a fluid turbine A fluid-activatable vane is defined by a thin vane body having opposed narrow leading and trailing side edges and opposed substantially smooth large top and bottom surfaces. The body has a central longitudinal axis and is substantially symmetrical on oppo...	12/14/1999
5921753	Anti-windmilling device An anti windmilling device 10 for fan blades 103 including a housing member 20 adapted to be secured to the wire grid 101 of a fan 104. The housing member 20 rotatably supports a sail member 40 mounted on a shaft element 42 dimensioned to engage a portion...	07/13/1999
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 propelling unit and the driving unit such that the transmission ...	06/01/1999
5855471	Helicopter rotor brake assembly A helicopter rotor brake assembly for arresting rotational movement of a main rotor drive shaft, wherein the helicopter rotor brake assembly is mechanically interconnected with the main rotor drive shaft through a main transmission. The helicopter rotor b...	01/05/1999
5800126	Swinging head gear shell of an electric fan A swinging head gear shell for an electric fan is provided and includes a body and a cover respectively molded from reinforced engineering plastics. The body has a mounting plate for mounting with screws, a first open top chamber and a second open top cha...	09/01/1998
5743712	Turbine support and energy tranformation Apparatus for peripherally supporting the rotor of a fluid driven turbine and for power take-off of energy by transformation of peripheral speed of the rotor to use such as to drive one or more electric generators to provide electric power output as deter...	04/28/1998

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Class 416/169R - HAVING CLUTCH OR BRAKE MEANS