Class / Patent application number | Description | Number of patent applications / Date published |
416142000 | WORKING MEMBER FOLDABLE, PIVOTABLE OR COLLAPSIBLE TO NON-USE POSITION | 16 |
20080232966 | Detachable blade assembly for horizontal-axis wind turbine - A blade assembly for a horizontal-axis wind turbine includes a hub, and a plurality of detachable blade units each mounted on a periphery of the hub and each including a plurality of blades detachably connected with each other by a plurality of connecting devices. Thus, the blade assembly comprises a hub and a plurality of detachable blade units so that all parts of the blade assembly are detachable to reduce the whole volume of the blade assembly before assembly, thereby facilitating packaging, storage and transportation of the blade assembly. | 09-25-2008 |
20090016883 | Method and device for fans - Fans with wings that detach, fold or twist for the purpose of cleaning, transport and storage. The twisting embodiment can be used for adjusting the force of the air and its direction. The invention applies to domestic and industrial fans and all kinds of fans including floor standing upright fans, table fans, clip-on fans and ceiling fans. | 01-15-2009 |
20090060743 | Expandable impeller pump - An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades. | 03-05-2009 |
20110150652 | TURBINE ASSEMBLIES - A turbine is described. The turbine includes: (i) a shaft capable of rotation along its longitudinal axis and capable of connecting to an electrical generator, and the shaft having disposed thereon at least one shaft hinge; (ii) a radial arm including a first end having disposed thereon at least one first hinge; and a hinge pin that fits inside a cavity formed when at least one the shaft hinge of the shaft is in an engaged position with at least one first hinge of the radial arm, and in the engaged position the hinge pin capable of connecting the radial arm to the shaft. | 06-23-2011 |
20110236210 | EXPANDABLE IMPELLER PUMP - An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades. | 09-29-2011 |
20110268572 | HIDE-AWAY WINDMILL - A hide-away windmill is exposed to the wind for use and covered or hidden for storage. In one version, the windmill has a support tower that is extendable and retractable within another housing. In another version, the windmill is inside another housing, and the walls or portions of the housing are movable to open up the housing to expose the windmill to the wind, for example, in a cupola-style housing with louvers or doors. In yet another version, the windmill is surrounded by an extendable and retractable housing, wherein, when the housing is fully retracted, the windmill extends beyond the housing to be exposed to the air and whatever wind is available, and, when the housing is fully extended, the windmill including its turbine blades is entirely or nearly entirely enclosed within the housing. The windmill may be repeatedly exposed to become operable, and repeatedly covered or hidden, not only to become inoperable, but also to be not visible, and protected from high winds, when not in use. The hide-away feature may be for aesthetic reasons, and/or for safety, security and structural reasons. | 11-03-2011 |
20120014796 | KITE FAN BLADE - A fan blade for a ceiling fan includes a blade member and a support for the blade member. The blade member and the support are disassembled in a first mode to occupy a compact space for storage and transport and are assembled in a second mode to form a substantially rigid fan blade for assembly into a ceiling fan. | 01-19-2012 |
20120039713 | Article Comprising an Impeller II - An impeller for use in conjunction with a percutaneously-insertable blood pump or other rotatable equipment includes a blade that is segmented into a plurality of overlapping or abutting bladelets. In some embodiments, the bladelets are foldable and one side of each bladelet is concave. | 02-16-2012 |
20120121417 | BLADE-RETAINING DEVICE FOR TURBOMACHINE PROPELLER - An aircraft turbomachine propeller including multiple blades assembled on a hub rotating around an axis of rotation of the propeller, that can reduce risks of loss of the blade following impact of a foreign body. At least one blade includes a recess opening radially towards the inside in the area of the base of this blade. A retaining device includes a moving retaining mechanism positioned in the recess and configured to be moved from a retracted position to a deployed blade-retaining position, and vice versa. | 05-17-2012 |
20120134824 | Lightweight, Collapsible Axial Wind Generator - A wind generator that includes a lightweight, collapsible blade assembly mounted on a supporting structure that holds the blade assembly in fixed position that is exposed to low to moderate winds. The blade assembly is coupled to the distal end of a drive shaft linked to a low RPM, axial magnetic generator designed to produce A.C. electric current when rotated at low speeds. The blade assembly is a cylindrical structure with a longitudinally axis. Coaxially aligned around the longitudinal axis is an outer blade component and an inner blade component. The outer blade component is a non-rotating structure which includes a plurality of directional blades designed to direct the wind into and towards the blades on the inner blade assembly. The inner blade component is designed to rotate inside the outer blade component and coupled to the generator's drive shaft. The blades on the inner and outer blade assemblies are made of flexible, lightweight material that enable them to be fully extend when exposed to low and moderate winds or collapse in the blade assembly when exposed to high winds or during repairs. Control mechanisms are provided for automatically extending and retracting the blades on the inner and outer blade components. | 05-31-2012 |
20120183400 | ROTATING-BLADE VERTICAL-AXIS WIND TURBINE - To provide a rotating-blade vertical-axis wind turbine capable of improving wind turbine efficiency and dealing with strong winds as well as capable of upsizing. For that, a rotating-blade vertical-axis wind turbine includes a wind-direction shaft of a wind vane mounted in a direction opposite to a rotation direction in the range of between 10° and 30° (both inclusive) from a regular reference mounting angle. | 07-19-2012 |
20160001879 | FOLDING PROPELLERS SYSTEM - Folding propeller system for safe packing and shipping, and easy deployment. | 01-07-2016 |
20160122034 | ICE-SHEDDING SPINNER FOR RAM AIR TURBINE - A ram air turbine movable between a stowed position and a deployed position is provided including a rotatable hub assembly. A hub face is arranged at a first end of the rotatable hub assembly. The hub face has a non-planar configuration such that a limited portion of a surface area of the hub face is arranged within a plane oriented perpendicular to a direction of travel of an airflow upstream from the hub face when the ram air turbine is in a deployed position. | 05-05-2016 |
416143000 | Member movement in rotation plane | 3 |
20090081043 | FOLDING ROTOR FOR AN AUTOGYRO DEVICE - In one embodiment, a folding rotor blade for an autogyro device comprises a plurality of connected rotor members. When the folding rotor blade is in a compressed state the folding rotor blade has a compressed length, and some of the connected rotor members are disposed in a non-parallel arrangement. When the folding rotor blade is in an extended state the folding rotor blade has an extended length, which is greater than the compressed length, and the connected rotor members are disposed in a parallel arrangement. | 03-26-2009 |
20160097372 | TOWER-LIKE WIND GENERATOR - A tower-like wind turbine, that is with vertical axis, comprising a cradle-like supporting structure ( | 04-07-2016 |
20160137308 | RAM AIR TURBINE WITH COMPOSITE SHAFT - A ram air turbine includes a strut. The strut includes a turbine portion and an opposed vehicle connection portion. The ram air turbine also includes a turbine operatively connected to the turbine portion of the strut to rotate relative to the strut. A shaft is disposed within the strut. The strut includes a turbine end and a vehicle connection end. The turbine end is operatively connected to be driven by the turbine to rotate within the strut. The shaft includes a composite material that has a tuned performance for at least one of optimal critical speed, bending, torsional stiffnesses, and/or resonant frequencies over an operational speed envelope of the shaft. | 05-19-2016 |