Foldable viewer
First Claim
Patent Images
1. A foldable viewer, foldable from a collapsed condition to an assembled condition;
- said viewer being for mass distribution by binding within magazines or the like for mailing, which type of distribution requires extremely thin outer edges; and
said viewer comprising;
a front wall of sheet material having a pair of lens-receiving openings defined therein and a pair of optical lenses affixed thereto, said front wall having top, bottom, left side and right side boundaries defined at least in part by fold lines;
a rear wall of sheet material having image means affixed thereto for viewing, said rear wall having top, bottom, left side and right side boundaries defined at least in part by fold lines; and
means for moving said front and rear walls from the collapsed condition to the assembled condition;
said moving means comprising;
a bottom wall of sheet material that is continuous with both the front and rear walls, along the respective fold lines that form the respective bottom boundaries of the front and rear walls;
said bottom wall thereby interconnecting said bottom boundaries, anda top wall of sheet material that is continuous with both the front and rear walls, along the respective fold lines that form the respective top boundaries of the front and rear walls;
said top wall thereby interconnecting said top boundaries, andleft and right side walls of sheet material that are each continuous with both the front and rear walls, along the respective fold lines that form the left and right side boundaries respectively;
said side walls thereby interconnecting said side boundaries;
at least three of said bottom, top and side walls being each in the form of a pair of separate sections, each separate section terminating in a substantially vertical tab;
whereby there are at least three pairs of substantially vertical tabs;
each pair of substantially vertical tabs being secured together while they both project away from the associated wall, so that each pair of tabs forms a combination tab that has exactly two thicknesses of sheet material and that projects outward from the viewer;
whereby there are at least three of said outward-projecting two-thickness combination tabs;
said front and rear walls in the collapsed condition being directly juxtaposed to each other, to form in combination an extremely thin region of only two thicknesses of sheet material;
said pair of top wall sections in the collapsed condition being directly juxtaposed to each other, to form in comibination an extremely thin region of only two thicknesses of sheet material;
said pair of bottom wall sections in the collapsed condition being directly juxtaposed to each other, to form in combination an extremely thin region of only two thicknesses of sheet material;
said pair of left side wall sections in the collapsed condition being directily juxtaposed to each other, to form in combination an extremely thin region of only two thicknesses of sheet material; and
said pair of right side wall sections in the collapsed condition being directly juxtaposed to each other, to form in combination an extremely thin region of only two thicknesses of sheet material;
whereby in the collapsed condition said at least three outward-projecting two-thickness combination tabs maintain the extreme thinness of the other regions, particularly along outer edges of the viewer to satisfy requirements for mass distribution by binding in such magazines for mailing.
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Accused Products
Abstract
A foldable viewer includes a front wall having a pair of lens-receiving openings and a pair of optical lenses affixed thereto. A rear wall is included and has a pair of openings over which transparencies depicting stereoscopic images are affixed. The front and rear walls are attached to top, bottom and side walls to create a box-like structure when assembled. The walls cooperate to form a bellows-like structure that permits the viewer to be flattened for storage, mailing or placement in a magazine-like publication.
42 Citations
22 Claims
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1. A foldable viewer, foldable from a collapsed condition to an assembled condition;
- said viewer being for mass distribution by binding within magazines or the like for mailing, which type of distribution requires extremely thin outer edges; and
said viewer comprising;a front wall of sheet material having a pair of lens-receiving openings defined therein and a pair of optical lenses affixed thereto, said front wall having top, bottom, left side and right side boundaries defined at least in part by fold lines; a rear wall of sheet material having image means affixed thereto for viewing, said rear wall having top, bottom, left side and right side boundaries defined at least in part by fold lines; and means for moving said front and rear walls from the collapsed condition to the assembled condition;
said moving means comprising;a bottom wall of sheet material that is continuous with both the front and rear walls, along the respective fold lines that form the respective bottom boundaries of the front and rear walls;
said bottom wall thereby interconnecting said bottom boundaries, anda top wall of sheet material that is continuous with both the front and rear walls, along the respective fold lines that form the respective top boundaries of the front and rear walls;
said top wall thereby interconnecting said top boundaries, andleft and right side walls of sheet material that are each continuous with both the front and rear walls, along the respective fold lines that form the left and right side boundaries respectively;
said side walls thereby interconnecting said side boundaries;at least three of said bottom, top and side walls being each in the form of a pair of separate sections, each separate section terminating in a substantially vertical tab;
whereby there are at least three pairs of substantially vertical tabs;each pair of substantially vertical tabs being secured together while they both project away from the associated wall, so that each pair of tabs forms a combination tab that has exactly two thicknesses of sheet material and that projects outward from the viewer;
whereby there are at least three of said outward-projecting two-thickness combination tabs;said front and rear walls in the collapsed condition being directly juxtaposed to each other, to form in combination an extremely thin region of only two thicknesses of sheet material; said pair of top wall sections in the collapsed condition being directly juxtaposed to each other, to form in comibination an extremely thin region of only two thicknesses of sheet material; said pair of bottom wall sections in the collapsed condition being directly juxtaposed to each other, to form in combination an extremely thin region of only two thicknesses of sheet material; said pair of left side wall sections in the collapsed condition being directily juxtaposed to each other, to form in combination an extremely thin region of only two thicknesses of sheet material; and said pair of right side wall sections in the collapsed condition being directly juxtaposed to each other, to form in combination an extremely thin region of only two thicknesses of sheet material; whereby in the collapsed condition said at least three outward-projecting two-thickness combination tabs maintain the extreme thinness of the other regions, particularly along outer edges of the viewer to satisfy requirements for mass distribution by binding in such magazines for mailing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- said viewer being for mass distribution by binding within magazines or the like for mailing, which type of distribution requires extremely thin outer edges; and
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16. A blank for a viewer, comprising:
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a first portion defining a front wall having a pair of lens-receiving openings defined therein, said first portion having first or top, second or first-side, third or bottom, and fourth or second-side boundaries; said first and third boundaries being substantially opposite each other and said second and fourth boundaries being substantially opposite each other, and all of said boundaries being at least in part fold lines; a second portion defining a front section of a top wall, said second portion extending along said first or top boundary; a third portion defining a front section of a first side wall, said third portion extending along said second or first-side boundary; a fourth portion defining a front section of a second side wall, said fourth portion extending along said fourth or second-side boundary; a fifth portion defining a bottom wall, said fifth portion being divided by a fold line into a front section extending along said boundary and a rear section having a fifth boundary extending opposite said third boundary; a sixth portion defining a rear wall, said sixth portion having sixth or first-side, seventh or top, and eighth or second-side boundaries; said sixth boundary being substantially opposite said eighth boundary and said seventh boundary being opposite said fifth boundary, and all of these boundaries being at least in part fold lines; a seventh portion defining a rear section of the first side wall, said seventh portion extending along said sixth boundary; an eighth portion defining a rear section of the second side wall, said eighth portion extending along said eighth boundary; and a ninth portion defining a rear section of the top wall, said ninth portion extending along said seventh boundary; the length of the ninth portion having a first ratio to the length of the second portion; the length of the rear section of the fifth portion having substantially said first ratio to the length of the front section of the fifth portion; the lengths of the rear and front sections of the fifth portion being measured in a direction substantially perpendicular to the fifth boundary; the length of the seventh portion having a second ratio to the length of the third portion; the length of the eighth portion having substantially said second ratio to the length of the fourth portion; the lengths of the third, fourth, seven and eighth portions being measured in a direction substantially perpendicular to the sixth boundary; and said second ratio being significantly smaller than said first ratio so that when assembled the viewer is lockable near a desired focal distance between said front and rear walls. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification