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Class Information
Number: 416/142
Name: Fluid reaction surfaces (i.e., impellers) > Working member foldable, pivotable or collapsible to non-use position
Description: Apparatus wherein an impeller* is adapted to assume a more compact form by folding, pivoting, collapsing or similar movement of a working member* so as to render the member inoperative or to facilitate storage.










Sub-classes under this class:

Class Number Class Name Patents
416/143 Member movement in rotation plane 78


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8702393 Blinking sail windmill with safety control Apr. 22, 2014
8678767 Wind turbine Mar. 25, 2014
8641379 Hybrid ram air turbine Feb. 4, 2014
8631665 Portable cooling device Jan. 21, 2014
8591169 Rotor for generating electrical power from a flow medium Nov. 26, 2013
8579576 Articulated false seabed Nov. 12, 2013
8529207 Dynamic pump wheel for a pump and a pump device comprising a dynamic pump wheel Sep. 10, 2013
8500406 Wind turbine rotor blades with shape memory polymer composites and methods for deploying the same Aug. 6, 2013
8496423 Windmill conveyance system and method for using same Jul. 30, 2013
8480363 Self-starting turbine with dual position vanes Jul. 9, 2013
8449257 Wind generator with folding mast May. 28, 2013
8439859 Catheter device May. 14, 2013
8419362 Foldable blades for wind turbines Apr. 16, 2013
8382434 Fluid-propelling device having collapsible counter-rotating impellers Feb. 26, 2013
8376707 Expandable impeller pump Feb. 19, 2013
8328515 Wind power device Dec. 11, 2012
8316614 Method for establishing a wind turbine on a site Nov. 27, 2012
8292585 Fan device having simultaneously foldable blades Oct. 23, 2012
8272831 Water current powered generating apparatus Sep. 25, 2012
8262032 Collapsible wing beams and method Sep. 11, 2012
8192159 Rigid rotor assembly for folding helicopter blades Jun. 5, 2012
8157533 Wind turbine blade with variable aerodynamic profile Apr. 17, 2012
8118552 Apparatus and method for manipulating a component of a wind turbine Feb. 21, 2012
8113778 Wind turbine blade stowage Feb. 14, 2012
8092180 Blade assembly for a ceiling fan Jan. 10, 2012
8083212 Wind-turbine rotor-blade hoisting apparatus, method for attaching wind-turbine rotor blade, and method for constructing wind power generator Dec. 27, 2011
8029241 Wind turbine rotor blade with aerodynamic winglet Oct. 4, 2011
8007236 Supporting system for suspended wind turbines Aug. 30, 2011
7985048 Folding rotor for an autogyro device Jul. 26, 2011
7927068 Expandable impeller pump Apr. 19, 2011
7891953 Rotating wedge leveler Feb. 22, 2011
7857590 Folding rotor for a rotorcraft Dec. 28, 2010
7735808 Method and system for performing operations on a wind turbine Jun. 15, 2010
7726941 Methods of handling wind turbine blades and mounting said blades on a wind turbine, system and gripping unit for handling a wind turbine blade Jun. 1, 2010
7648339 Fabric fan blades Jan. 19, 2010
7530790 Rotor blade folding system May. 12, 2009
7494320 Rotor for passively stable helicopter Feb. 24, 2009
7467923 Fluid flow energy conversion apparatus Dec. 23, 2008
7442009 Driving device for raising or lowering an airfoil Oct. 28, 2008
7416392 Stow abort mechanism for a ram air turbine Aug. 26, 2008
7396207 Wind turbine Jul. 8, 2008
7393181 Expandable impeller pump Jul. 1, 2008
7338257 Device for interacting with a fluid moving relative to the device and vehicle including such a device Mar. 4, 2008
7326035 Device for attaching a moving blade to a turbine rotor disk in a turbomachine Feb. 5, 2008
7318702 River turbine Jan. 15, 2008
7296974 Wind energy turbine Nov. 20, 2007
7207777 Methods of handling wind turbine blades and mounting said blades on a wind turbine, system and gripping unit for handling a wind turbine blade Apr. 24, 2007
7204674 Rotor blade for a wind power installation Apr. 17, 2007
7192252 Safety device for a wind turbine Mar. 20, 2007
7090550 Propeller with variable geometry and method for varying geometry of a propeller Aug. 15, 2006

1 2 3 4










 
 
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