Class 416/16 - Biased to position by weight of parts

Subclass of Class 416 - Fluid reaction surfaces (i.e., impellers)
Definition: Apparatus wherein the impeller and the vane or rudder are
No. of patents: 20
Last issue date: 07/15/2008

Number	Title	Issue Date
7399158	Blade arrangement A blade arrangement 31 includes an array of radially extending blades 20, which may for example comprise a fan of a gas turbine engine for an aircraft. The blades 20 are mounted for rotation about a central axis X-X. The blade arrangement 31	07/15/2008
7317260	Wind flow estimation and tracking using tower dynamics A turbine control system for a variable speed electrical generator in a wind turbine mounted atop a support tower. The wind turbine converts wind energy into a driving torque applied to the generator. The control system includes a turbine support tower position sens...	01/08/2008
7309213	Wind sail receptor A wind sail receptor for turning in a wind or water flow to operate a power generator that includes from six to ten identical, equal spaced blades, that are formed from two flat sections of a stiff material and are arranged between a rear hub and spaced apart forwar...	12/18/2007
7276809	Wind turbine assembly and related method Wind turbine assembly, and related method, is provided that exploits an aerodynamically enhanced wind region of a building in proximity to a parapet of the building. A wind turbine assembly includes a support assembly configured to couple to a building in proximity ...	10/02/2007
7201089	Feeder, gatherer-stitcher and method for index punching A feeder for feeding flat products to a conveyor device includes a magazine for storing the products, a separating device for separating the products from the magazine and a device for producing an index in the products. A gatherer-stitcher includes a plurality of t...	04/10/2007
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
7134977	Sports training target system A sports training target system is disclosed. The system includes a target anchor having a support post that includes a slight angle in the forward direction. The system includes a target section having at least one target arm which is rotatably secured to the ancho...	11/14/2006
6945752	Azimuthal driving system for wind turbines Wind power installations generally have an active drive for wind direction tracking. The active drive rotates the machine housing of the wind power installation in such a way that the rotor blades of the rotor are oriented in the direction of the wind. Multiple azim...	09/20/2005
6927502	Three-phase asynchronous motor driven azimuthal drive for wind power installations Wind power installations generally have an active drive for wind direction tracking. The active drive rotates the machine housing of the wind power installation in such a way that the rotor blades of the rotor are oriented in the direction of the wind. That drive wh...	08/09/2005
6113350	Vertical-axle power machine A vertical-axle wind power machine comprises a vertical axle, a plurality of jointed radial arms, a plurality of counterbalanced oblique blades at the support points thereof, a friction-rewarding rotary speed multiplying transmission, and an automatic rot...	09/05/2000
5921752	Flat spine scorer and saddle stitcher An improved saddle stitching apparatus has dual scoring disks which cooperate with a scoring drum to create a flat spine on a cover. In one embodiment, a split ring is provided with two clamp arms, so that the ring can be releasably secured to the scoring...	07/13/1999
5746576	Wind energy conversion device with angled governing mechanism A wind energy conversion device includes a support frame that pivots on a vertical yaw axis, and a rotor/bushing assembly coupled to the support frame through a governing coupling that permits the rotor/bushing assembly to pivot on a governing axis relati...	05/05/1998
5436508	Wind-powered energy production and storing system A wind-powered energy production and storing system comprises a wind rotor (1) in driving engagement with a power generator via transmission means, to which is also connected a heat pump for operation of at least one heat exchanger unit. The wind rotor (1...	07/25/1995
5366342	Water pumping push-pull windmill The windmill has a stub tower having a rotatable platform carrying a wind driven fan with an input shaft driving a transmission mechanism on the platform. The mechanism carries two balanced cranks which rotate continuously and two pitman arms at opposite ...	11/22/1994
4678394	Fluid current driven machine employing individually self-governing energy panels The self-governing energy panel is to be used as one of a group of panels designed to collect wind for and govern the speed of the windpowered traveling shaft machine. This machine is designed to convert windpower into other forms of energy (e.g. electric...	07/07/1987
4674954	Wind turbine with damper A double-acting hydraulic cylinder is pivotally mounted between the head and tail assemblies of a wind turbine, to act as a damper. The cylinder is connected with a hydraulic fluid reservoir container. Means, such as restrictive orifices, are provided to ...	06/23/1987
4630996	Windmill Disclosed is a windmill whose impeller and strut are protected from harms by high wind, comprising an impeller; a strut; weight; and means for supporting said strut in such a manner that said strut is capable of rotating and inclining around pivot, wherei...	12/23/1986
4449889	Windmill Disclosed is an inclined axis windmill. The windmill has a plurality of blades generally transverse to the upstanding rotor shaft. The blades have an airfoil cross-sectional shape and are oriented with a negative angle of attack, thereby allowing the lead...	05/22/1984
4142830	Mechanical overload systems for wind generators Mounted on a vertical axis there is a horizontal axis and, vertically spaced therefrom, a wind wheel generator and counterweight unit. When the wind speed exceeds a predetermined limit, the unit is swung thereby, in a vertical plane, decreasing the effect...	03/06/1979

PatentStorm

Quotables

PatentStorm News

Class 416/16 - Biased to position by weight of parts