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(11)    Patent No :    AP 2097   
(21)    Application No :    AP/P/2007/003886   
(22)    Filing Date :    06.07.2005   
(24)    Date of Grant &    01.02.2010   
(45)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
CA    2,473,042    06.07.2004

(84)    Designated State

BW    GM    GH    KE    LS    MW  MZ   NA   SL
SD    SZ    T Z    UG    ZM    ZW

(73) Applicant(s)


2214 Hanselman Avenue, Saskatoon, Saskatchewan,
Canada S7L 6A4,


(72) Inventors

TUCHELT Maurice J., Canada

(74) Representative



(51)  International  Classification   F24J 2/40 (2006.01)    F24J 2/46 (2006.01)

(54)    Title

Solar energy control.

(57)    Abstract

A solar energy collection system includes a solar concentrator operative to direct a concentrated solar beam onto a solar receptor. A shutter plate is positioned between the solar concentrator and the solar receptor and is movable from an open position adjacent to the solar beam, to a closed position wherein at least a portion of the solar beam contacts a front face of the shutter plate and is blocked from contacting the receptor. A cooling circuit is operative to circulate a cooling fluid to remove heat from the shutter plate. A shutter drive is operative to move the at least one shutter plate from the open position to the closed position, and a shutter control is operative to stop movement of the shutter plate at a plurality of locations between the open position and the closed position.

(56)    Documents Cited :    US 4 222 367 A   US 6 082 354 A


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