Class 415/18 - Control of clutch or brake surface

Subclass of Class 415 - Rotary kinetic fluid motors or pumps
Definition: Apparatus comprising means to (1) cause an apparatus surface
No. of patents: 23
Last issue date: 05/29/2012

Number	Title	Issue Date
8186936	Actuation of movable parts of a wind turbine rotor blade A rotor blade for a wind turbine comprises a rotor blade body with a root for connecting the rotor blade to a hub of a wind turbine, a tip, a leading edge and a trailing edge. The blade has a movable part, and motion transmitting means for connecting to an actuator ...	05/29/2012
7384239	Drive device for a windmill provided with two counter-rotative propellers The drive device is provided for inclusion in a windmill with two counter-rotating screws. The shafts of the screws are each connected to a spindle of an epicyclical gearbox, the third spindle providing the energy for the user. The device further comprises a brake d...	06/10/2008
7367427	Accessory lubrication system for a turbine plant A lubrication system for supplying lubricants between two environments is provided. The first environment is disposed within a first housing and the second environment is disposed within a second housing having a supply opening and an exhaust opening. The system inc...	05/06/2008
7263912	Flywheel hub-to-rim coupling A flywheel system includes an annular rim mounted for high speed rotation on a flywheel hub. The hub has a radially splined exterior surface facing radially outwards. The rim includes an annular rim liner having an axis of rotation coinciding with the axis of rotati...	09/04/2007
7160159	Drive apparatus A drive apparatus (10) for propelling a vehicle across a body of water is described. The apparatus (10) comprises a prime mover, for example a gas turbine engine (12), and a propelling arrangement (26) driven by the prime mover for propel...	01/09/2007
7077732	High torque dual chamber turbine rotor for hand held or spindle mounted pneumatic tool A high torque turbine rotor for a lightweight hand held tool for grinding and polishing having a rotor that includes two separate high pressure air chambers separated by a common housing wall, each air chamber having peripheral air expelling nozzles in a tangential ...	07/18/2006
7014419	Passive improved air turbine starter lubrication system A passive ATS lubrication system is provided that includes a starter housing, a receptacle and two valves. The starter housing is adapted to couple to a gearbox assembly and includes a supply opening and an exhaust opening that are each configured to provide fluid c...	03/21/2006
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
6837681	Wind power plant with a particle sensor Wind power installations using more modern technology have long been known. Such wind power installations have rotors comprising at least one or more rotor blades. The rotors and accordingly the rotor blades carried thereby of wind power installations are subjected ...	01/04/2005
5439346	Pneumatic pressure automatic braking mechanism A braking mechanism for a rotary apparatus having a housing adapted to receive a pressurized fluid and a rotor rotatably mounted in the housing. The braking mechanism enables the rotor to rotate in the housing in response to the receipt of the pressurized...	08/08/1995
5275538	Electric drive water pump A coolant pump system driven by an electric motor mounted in-line with the pump shaft to the pump housing. The system minimally includes a pump body having a bore therein, a coolant pump impeller, a pump shaft passing through the bore and having the impel...	01/04/1994
5042963	Dual range air turbine starter An air turbine starter for use aboard aircraft includes a dual range power train and a clutch automatically shifting between the ranges according to the use being experienced by the starter. Main engine starts may be achieved more quickly, while ground ch...	08/27/1991
4509896	Turbine rotor A rotor is distinguished by parts including a radially innermost part and a radially outermost part which is actually a separate element. The two parts are normally coupled for their conjoint rotation by pins anchored to project radially from the innermos...	04/09/1985
4449053	Vertical axis wind turbine A Darrieus-type vertical axis wind turbine is disclosed which includes a vertically extending rotor tube mounted on a support structure with two or three rotor blades of troposkein configuration on the rotor tube for rotating the tube in response to wind ...	05/15/1984
4376614	Propeller brake for a turbo-prop engine A propeller brake for a twin spool turbo-prop engine which permits the propeller to be locked in a stationary position with the engine running is disclosed. The propeller brake has a hydraulically actuated friction brake and hydraulically actuated locking...	03/15/1983
4339226	Multiple-purpose closed loop automatic control system A multiple-purpose, closed-loop, automatic control system is disclosed, having a system controlled, and means for detecting a controlled variable output from the system controlled and for converting the controlled variable into an electrical feedback sign...	07/13/1982
4325354	Energy conversion apparatus An apparatus for maintaining the speed of rotation of a windmill rotor at a fixed ratio to the free flow velocity of the driving wind. This arrangement permits the windmill rotor to rotate at the speed at which its power output is maximized. The apparatus...	04/20/1982
4204126	Guided flow wind power machine with tubular fans A guided flow wind power machine having inter-meshing tubular fan blades is disclosed. The device includes a main frame which is rotatively mounted to permit it to continuously face the wind directly. The main frame carries three separate power cells each...	05/20/1980
4086019	Transmission means for centrifugal compressors A centrifugal compressor has at least one stage with its own impeller shaft, an inlet and an outlet for gas, and an epicyclic gear train for driving the impeller shaft. The epicyclic gear train comprises three members, a sun gear, a ring gear and a carrie...	04/25/1978
4076449	Pressure gas engine A pressure gas engine such as a compressed air turbine having a variable speed device for controlling the speed of a rotor and also having an overspeed safety device to prevent damage to the engine in the case of excess speed through malfunction. The over...	02/28/1978
4061439	Impeller pump and vane pump assembly with clutch deactivation A fuel pump assembly for a gas turbine engine incorporates an impeller pump and a vane pump which are driven by a common drive shaft. A centrifugally operated clutch functions to disengage the vane pump from the drive shaft at a predetermined angular velo...	12/06/1977
4036561	Primary coolant pump for nuclear reactors The primary coolant pump of a nuclear reactor, which is usually driven electrically, can be accelerated in the event of a line break by the escaping coolant to such an extent that its mechanical strength is in jeopardy due to overspeed. According to the i...	07/19/1977
3961859	Clutch connected multi-stage impeller pump A boost pump incorporates a low-flow impeller pump for charging the inlet of a gas producer fuel pump and a high-flow impeller pump for charging the inlet of an augmentor fuel pump. The low-flow pump is connected to a drive shaft so as to be continuously ...	06/08/1976

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Class 415/18 - Control of clutch or brake surface