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US 4,310,978 AGranted
Advertising and promotional display materials
AssigneeAmerican Printers & Lithographers, Inc.
InventorLarry Stern
Life of this patent
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AssigneeAmerican Printers & Lithographers, Inc.
InventorLarry Stern
Estimating the term…
An article for displaying advertising or promotional materials. In the preferred form, the article comprises a mounting portion including a body of an elastomeric material having embedded therein a plurality of magnetic particles, thereby rendering the mounting portion capable of being adhered to a magnetically permeable substrate. The body has a rear surface portion adapted to be received over the substrate, an oppositely directed front surface portion, and an intermediate opaque sheet of a thermoplastic material bonded by a pressure-sensitive adhesive to said front surface portion of the body. A cover sheet closely overlies the intermediate sheet, and the intermediate sheet and the outer sheet have their respective peripheral edges bonded to each other by a fused, adhesiveless bond about at least a substantial portion of the periphery of the article. In one form, an envelope is provided, and in another form, the cover sheet is transparent and a display image is lithographed on the inner surface of the cover sheet. A method of forming the article is described; the method includes simultaneously die-cutting articles and fusing certain portions of their edges together to form the final product.
An article for displaying advertising or the like, said article comprising, in combination, a mounting portion including a body of an elastomeric material having embedded therein a plurality of magnetic particles, thereby rendering said mounting portion capable of being adhered to a magnetically permeable substrate, said body having a continuous rear surface portion adapted to be received over said substrate, an oppositely directed front surface portion, and sidewall portions extending between and joining said front and rear surfaces to each other, an intermediate opaque sheet of a thermoplastic material bonded by a pressure-sensitive adhesive to said front surface portion of said body, and a cover sheet closely overlying said intermediate sheet, said intermediate sheet and said cover sheet also having respective oppositely directed non-adherent surfaces and outer outer edges formed by sidewalls coextensive with and aligned in overlying relation to said sidewalls of said mounting portion, whereby all of said sidewalls define the shape of said article, said sidewalls of said intermediate and cover sheets being bonded to each other by a fused, adhesiveless bond joining said intermediate and cover sheet sidewalls only and extending about at least a substantial portion of the periphery of said article, said cover and intermediate sheets being thereby substantially free from a visible bond lying within the outer margin of said sheets.
A method of manufacturing a display article, said method including the steps of adhesively securing a first sheet of an opaque thermoplastic material to one surface of a backing material in the form of a sheet of an elastomer having a plurality of magnetic particles dispersed throughout said sheet, placing a second sheet of transparent thermoplastic film having inner and outer surfaces over said backing and said first sheet to create an array of superimposed sheets, with the inner surface of said second sheet being adapted to receive a printed impression thereon, and placing a knife edge type die which is capable of receiving high frequency vibrational energy and transferring at least a part of said energy to an article contacted by said die over said array of superimposed sheets and substantially simultaneously die cutting said array of superimposed sheets into a plurality of articles, the outer edges of which have a shape determined by the shape of said die and applying vibrational energy to said die for transmission to said sheets so as to fuse the outer sidewall portions of said first and second sheets to each other, thereby providing a display article having die cut sidewalls and a magnetic backing member covered by first and second superimposed sheets, said superimposed sheets having their sidewalls bonded to each other, said article having an outer margin free from a visible adhesive bond of substantial width.
Dependencies are inferred from the claim text.