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Class 416/88 - Variable work surface or non-rigid connection


Subclass of Class 416 - Fluid reaction surfaces (i.e., impellers)
Definition: Apparatus wherein (1) the working member surface area or
No. of applications: 5
Last issue date: 03/22/2012


Application No.Application TitleIssue Date
20120068469WIND TURBINE ROTOR BLADE
A wind turbine blade extending in a longitudinal direction from a root end to a tip end and defining an aerodynamic airfoil cross-section between a leading edge and a trailing edge in a chordwise direction transverse to the longitudinal direction, the aerodynamic airfoi...
03/22/2012
20120039711FLUID PUMP
The invention relates to a fluid pump, in particular liquid pump, with a rotor, with a rotor shaft (11) and with at least one rotor blade for delivering the fluid, wherein the rotor with regard to its diameter may be changed between a first, compressed condition,...
02/16/2012
20110206513Drive Mechanisms For Variable Diameter Rotor Systems
A rotor hub assembly includes a rotor hub for supporting a telescoping rotor blade having an outboard section; and a drive mechanism associated with the telescoping rotor blade, the drive mechanism including: a motor; a spool driven by the motor; and a strap wound on th...
08/25/2011
20100202882BLADE ASSEMBLY FOR A CEILING FAN
A blade assembly for a ceiling fan includes a mounting arm, a bearing, a cover, a spiral spring, a blade, and three screws. The mounting arm has a plate. The plate has a boss. The boss has a split. The bearing is sleeved on the boss. The cover has a stub. The stub has a...
08/12/2010
20050042095Self 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 a ho...
02/24/2005
 
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