Projection screen construction
First Claim
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1. A PORTABLE PROJECTION SCREEN COMPRISING, A SUPPORTING STANDARD, A SCREEN-HOUSING PIVOTALLY CONNECTED TO THE STANDARD AND ENCLOSING A SPRING-RETRACTED SCREEN HAVING A SLAT FIXED ALONG ITS FREE EDGE AND DIMENSIONED FOR NORMAL PERIPHERAL DISPOSITION EXTERIORLY ALONG THE HOUSING WHEN THE SCREEN IS COILED IN NON-USE POSITION WITHIN THE HOUSING, AND AN ARM PIVOTALLY CONNECTED TO THE SCREEN SLAT AND TO THE STANDARD TO EFFECT THE COORDINATED PULLING OF THE SCREEN OUT OF THE HOUSING AND THE SWINING OF THE HOUSING ON ITS STANDARD-PIVOT FROM A HORIZONTAL TO A VERTICAL DISPOSITION RELATIVE TO THE STANDARD AS THE SCREEN IS EXTENDED INTO ITS VERTICAL PROJECTION POSITION AND THE ARM SHIFTS INTO VERTICAL ALIGNMENT WITH THE STANDARD.
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1 Claim
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1. A PORTABLE PROJECTION SCREEN COMPRISING, A SUPPORTING STANDARD, A SCREEN-HOUSING PIVOTALLY CONNECTED TO THE STANDARD AND ENCLOSING A SPRING-RETRACTED SCREEN HAVING A SLAT FIXED ALONG ITS FREE EDGE AND DIMENSIONED FOR NORMAL PERIPHERAL DISPOSITION EXTERIORLY ALONG THE HOUSING WHEN THE SCREEN IS COILED IN NON-USE POSITION WITHIN THE HOUSING, AND AN ARM PIVOTALLY CONNECTED TO THE SCREEN SLAT AND TO THE STANDARD TO EFFECT THE COORDINATED PULLING OF THE SCREEN OUT OF THE HOUSING AND THE SWINING OF THE HOUSING ON ITS STANDARD-PIVOT FROM A HORIZONTAL TO A VERTICAL DISPOSITION RELATIVE TO THE STANDARD AS THE SCREEN IS EXTENDED INTO ITS VERTICAL PROJECTION POSITION AND THE ARM SHIFTS INTO VERTICAL ALIGNMENT WITH THE STANDARD.
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Current AssigneeJoseph Bernat
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Original AssigneeJoseph Bernat
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InventorsBernat, Joseph
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Application NumberUS04/479,234Time in Patent Office607 DaysField of SearchUS Class Current160/24CPC Class CodesG03B 21/58 collapsible, e.g. foldable;...
