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Back to the List of the Granted Patents                                                Click here to download AP2700 PDF

(11)    Patent No :    AP 2700   
(21)    Application No :    AP/P/2008/004325   
(22)    Filing Date :    05.07.2006   
(24)    Date of Grant &    17.07.2013   
           
(45)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
AU    2005903768    15.07.2005

(84)    Designated State

BW    GM    GH    KE    LS    MW  MZ   NA   SL
SD    SZ    T Z    UG    ZM    ZW
(73) Applicant(s)
SUNDERMANN Frederick Herman, Heyfield-Cowwarr Road,

Heyfield, 3858, Victoria,
Australia
(72) Inventors
SUNDERMANN Frederick Herman, Australia
(74) Representative
FISHER CORMACK & BOTHA
(51)  International  Classification   F02B9/08 (2006.01)    F32B 3/18  (2006.01)
F32B 13/26    (2006.01)    F03B 17/06 (2006.01)
(54)    Title

Electricity generating apparatus from a flow of water such as tide, river or the like

(57)    Abstract

An apparatus for generating electrical power from a flow of water, including a housing having a water inlet and water outlet, a first turbine mounted in the housing for rotation about a substantially vertical axis and having a turbine shaft, a set of vertical blades, and a blade angle control mechanism, a second turbine mounted in the housing adjacent to the first turbine, for rotation about a substantially vertical axis, the second turbine having a turbine shaft, a

set of vertical blades and a blade angle control mechanism, the housing being adapted to be mounted within the body of water and being so configured that

an incoming water flow enters the housing via the inlet, and is principally directed into two driving flows, one for each turbine, and is then directed for discharge via the outlet, the angle of each blade with respect to the driving water flow is controlled by the blade angle control mechanism such that a large blade surface area is presented to the incoming water flow for driving the turbine in a predetermined direction of rotation and a low blade surface

(56)    Documents Cited :    WO 2002/066828 A    WO 92/03656 A    DE 3702234 A    RU 2047787 C    GB 2312931 A

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