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US 4,132,348 AGranted
Slide calculator and method
AssigneeThe Flexi/Group, Inc.
InventorHoward M. Bromberg
Life of this patent
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AssigneeThe Flexi/Group, Inc.
InventorHoward M. Bromberg
Estimating the term…
A construction comprising a sheet of two contiguous detachable leaf members is folded and separated to form slide and sleeve components of the calculator. Fold lines in the sheet are formed parallel to a separation or tear line that divides one leaf member from the other leaf member. In assembling the slide calculator the leaf members can be separated before or after the folding operation. A marginal portion provided on one of the leaf members enables the sheet to be secured by adhesive or other suitable form of attachment to a newspaper or magazine, a package container, or a package label. In various embodiments of the invention an information readout is provided on reverse sides of the calculator including one embodiment wherein the printed format of the slide and sleeve components is applied to one surface only of the respective leaf members. The slide calculator construction can be produced from a web that is successively divided into sheet members of predetermined size comprising the pair of contiguous leaf members, with simultaneous formation of the fold lines and the separation line in the direction of movement of the web.
A construction for a slide calculator comprising a sheet having a generally rectangular periphery and including first and second leaf members, said first leaf member having at least three elongated sleeve segments formed within the confines of said generally rectangular periphery and including two substantially parallel sleeve fold lines, said first leaf member being foldable along said sleeve fold lines such that said sleeve segments may be overlapped to define a sleeve component having a cross-sectional periphery with a predetermined inside width, said second leaf member having at least two elongated slide segments formed within the confines of said rectangular periphery and including at least one slide fold line parallel to said sleeve fold lines, there being no sleeve segments or slide segments on said sheet which are external of said generally rectangular periphery, said second leaf member being foldable along said slide fold line such that said slide segments may be overlapped to define a slide component having a predetermined outside width less than the inside width of said sleeve component, a first separation line on said sheet formed substantially parallel with said sleeve fold lines and said slide fold line as a line of division between said leaf members such that said first leaf member is detachable from said second leaf member at said first separation line to permit insertion of said folded slide component in said folded sleeve component for relative movement between said components.
A construction for a slide calculator comprising a sheet having a generally rectangular periphery and including first and second leaf members, said first leaf member having at least two elongated sleeve segments formed within the confines of said generally rectangular periphery and at least one sleeve fold line, said first leaf member being foldable along said sleeve fold line such that said sleeve segments may be overlapped one upon another, and means for securing said overlapping sleeves together to define a sleeve component having a cross-sectional periphery with a predetermined inside sleeve width, said second leaf member having at least two elongated slide segments formed within the confines of said rectangular periphery and including at least one slide fold line parallel to said sleeve fold lines, there being no sleeve segments or slide segments on said sheet which are external of said generally rectangular periphery, said second leaf member being foldable along said slide fold line such that said slide segments may be overlapped to define a slide component having a predetermined outside width less than the inside sleeve width of said sleeve component, a first separation line on said sheet formed substantially parallel with said sleeve fold lines and said slide fold line as a line of division between said leaf members such that said first leaf member is detachable from said second leaf member at said first separation line to permit insertion of said folded slide component in said folded sleeve component for relative movement between said components.
Dependencies are inferred from the claim text.