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US 5,660,514 AGranted
Method of making pocket liner for covers of looseleaf binders or books
AssigneeSpecialty Loose Leaf, Inc.
InventorRobert Bruce Wilson
Life of this patent
Estimating the term…
Abstract
A flexible sheet having the back coated with a glue is formed into panels which are folded back on themselves with at least one layer being the back glued to itself by the coating. In one embodiment the glue is an energy responsive adhesive, and energy is applied to the folded sheet while it is on a cover, so that a cover having the cover liner with reinforced pocket is made.
Claims21
A method of making a cover pocket, comprising:
- taking a flexible sheet, the back of which is coated with an energy responsive adhesive, and in any order:
- (a) folding the sheet between a first panel portion of the sheet and a second panel portion of the sheet so that the front of the second panel portion is in contact with the front of the first panel portion,
- (b) folding the sheet between a third panel portion and the second panel portion of the sheet so that the back of the third panel portion is in contact with the back of the second panel portion,
- (c) forming the dimensions of the panel portions so that an end of the third panel portion extends beyond the second panel portion when the third panel portion is in contact with the second panel portion.
1 more element
A method of making a cover pocket, comprising:
- taking a flexible sheet, the back of which is coated with an energy responsive adhesive, and in any order:
- (a) folding the sheet between a first panel portion of the sheet and a second panel portion of the sheet so that the back of the second panel portion is in contact with the back of the first panel portion,
- (b) forming the dimensions of the panel portions so that an end of the first panel portion extends beyond the second panel portion when the back of the first panel portion is in contact with the back of the second panel portion;
- and then after steps of (a) and (b) :
- applying activating energy to the folded sheet with the back of the folded sheet against a cover until the back of the first panel portion adheres to the cover, and the back of the first panel portion adheres to the back of the second panel portion.
2 more elements
A method of making a cover pocket, comprising:
- taking a flexible sheet, the back of which is coated with a glue, and in any order:
- (a) folding the sheet between a first panel portion of the sheet and a second panel portion of the sheet so that the front of the second panel portion is in contact with the front of the first panel portion,
- (b) folding the sheet between a third panel portion and the second panel portion of the sheet so that the back of the third panel portion is in contact with the back of the second panel portion,
- so that glue originating on one of the back of the second panel portion and the third panel portion is in contact with the back of the other panel portion.
1 more element
A method of making a cover pocket, comprising:.
- taking a flexible sheet, the back of which is coated with a glue, and folding the sheet so that the back is glued to itself by the glue coating and fastening the back of the sheet by the glue coating on the back of the sheet to a cover.
Dependencies are inferred from the claim text.