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US 6,887,553 B1Granted
Roll of longitudinally folded masking material
Assignee3M Innovative Properties Company
InventorsRobert H. Heil, James F. Pitzen, Jeffrey J. Schwab
Life of this patent
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Assignee3M Innovative Properties Company
InventorsRobert H. Heil, James F. Pitzen, Jeffrey J. Schwab
Estimating the term…
A roll of masking material comprising a coiled elongate thin flexible sheet, which sheet has longitudinal folds defining, in some embodiments with elongate edges of the sheet, edges of longitudinally extending portions of said sheet. Those longitudinally extending portions of the sheet include pleat-like portions of the sheet each having opposite major surfaces generally parallel with the axis of the roll, which pleat-like portions are superimposed major surfaces to major surfaces to form a laminate with outermost ones of the superimposed pleat like portions defining the opposite outer surfaces of the laminate. At least some of the edges of the superimposed pleat like portions are positioned generally radially aligned at the first end of the roll, and the longitudinally extending portions of the sheet further including a first radial portion extending radially along the radially aligned edges at the first end of the roll from the edge of one of the outermost pleat like portions at the first end of the roll, and a first distal portion having one of the elongate edges of the sheet and extending for a short distance along the outer surface of the laminate toward the second end of the roll from the edge of the first radial portion opposite the outer most pleat to which the first radial portion is attached. If the sheet has longitudinal edges they may be separably attached, having been formed by longitudinally scoring a tube of the sheet material during manufacture of the roll. Also, a large percentage of the folded sheet can be positioned adjacent one end of the roll to facilitate cutting it on a dispenser.
A roll of masking material having an axis, first and second axially spaced ends, and a predetermined width between said spaced ends, said roll of masking material comprising a coiled elongate sheet, said sheet-having opposite first and second elongate edges, having longitudinal folds defining, with said elongate edges, edges of longitudinally extending portions of said sheet, said longitudinally extending portions of said sheet including pleated portions of said sheet each having opposite major surfaces generally parallel with said axis, said pleated portions being superimposed major surfaces to major surfaces to form a laminate with outermost ones of said superimposed pleated portions defining the opposite outer surfaces of said laminate, and at least some of the edges of said superimposed pleated portions being positioned generally radially aligned at said first end of said roll, said longitudinally extending portions of said sheet further including a first radial portion extending radially of said roll along said radially aligned edges at said first end of said roll from the edge of one of the outermost pleated portions at said first end of said roll and a first distal portion having said first elongate edge of said sheet and extending for a distance less than said predetermined width along the outer surface of the laminate toward the second end of the roll from the edge of said first radial portion opposite the outer most pleated portion to which the first radial portion is attached;
A roll of masking material having an axis, first and second axially spaced ends, and a predetermined width between said spaced ends, said roll of masking material comprising a coiled elongate sheet, said sheet having opposite first and second elongate edges, having longitudinal folds defining, with said elongate edges, edges of longitudinally extending portions of said sheet, said longitudinally extending portions of said sheet including pleated portions of said sheet each having opposite major surfaces generally parallel with said axis, said pleated portions being superimposed major surfaces to major surfaces to form a laminate with outermost ones of said superimposed pleated portions defining the opposite outer surfaces of said laminate, and at least some of the edges of said superimposed pleated portions being positioned generally radially aligned at said first end of said roll, said longitudinally extending portions of said sheet further including a first radial portion extending radially of said roll along said radially aligned edges at said first end of said roll from the edge of one of the outermost pleated portions at said first end of said roll and further including a first distal portion extending for a distance less than said predetermined width toward the second end of the roll from the edge of said first radial portion opposite the outer most pleated portion to which the first radial portion is attached, the edge of said first distal portion opposite said first radial portion being said first elongate edge of the sheet, said second elongate edge of said sheet being the edge adjacent the first end of said roll of the outermost pleated portion opposite the outermost pleated portion to which said first radial portion is attached, and said first elongate edge of said sheet along said first distal portion being separably attached to said second elongate edge of said sheet.
A roll of masking material having an axis, first and second axially spaced ends, and a predetermined width between said spaced ends, said roll of masking material comprising a coiled elongate sheet, said sheet having opposite first and second elongate edges, having longitudinal folds defining, with said elongate edges, edges of longitudinally extending portions of said sheet, said longitudinally extending portions of said sheet including pleated portions of said sheet each having opposite major surfaces generally parallel with said axis, said pleated portions being superimposed major surfaces to major surfaces to form a laminate with outermost ones of said superimposed pleated portions defining the opposite outer surfaces of said laminate, and at least some of the edges of said superimposed pleated portions being positioned generally radially aligned at said first end of said roll, said longitudinally extending portions of said sheet further including a first radial portion extending radially of said roll along said radially aligned edges at said first end of said roll from the edge of one of the outermost pleated portions at said first end of said roll and further including a first distal portion extending for a distance less than said predetermined width along the outer surface of the laminate toward the second end of the roll from the edge of said first radial portion opposite the outer most pleated portion to which the first radial portion is attached, the edge of said first distal portion opposite said first radial portion being said first elongate edge of the sheet;
A roll of masking material having an axis and first and second axially spaced ends, said roll of masking material comprising a coiled elongate sheet, said sheet having opposite first and second elongate edges, having longitudinal folds defining, with said elongate edges, edges of longitudinally extending portions of said sheet, said longitudinally extending portions of said sheet including pleated portions of said sheet each having opposite major surfaces generally parallel with said axis, said pleated portions being superimposed major surfaces to major surfaces to form a laminate with outermost ones of said superimposed pleated portions defining the opposite outer surfaces of said laminate, said first elongate edge of said sheet being at said first end of said roll and at least some of the edges of said superimposed pleated portions being positioned generally radially aligned at said first end of said roll to support said first elongate edge of said sheet, at least 75 percent of the width of the sheet material in the pleated portions forming the laminate between said edges is within the ⅔ of the axial length of the roll from said first end.
A roll of masking material having an axis and first and second axially spaced ends, said roll of masking material comprising a coiled elongate sheet, said sheet having opposite first and second elongate edges joined along a line of weakness affording manual separation of said edges, and having longitudinal folds defining, with said elongate edges, edges of longitudinally extending portions of said sheet.
Dependencies are inferred from the claim text.