Method of manufacturing a packaged web product and apparatus therefor

Claim 1

A method of manufacturing a packaged web product such as facial tissue, toweling and the like comprising: advancing at uniform speed a plurality of superposed webs of indefinite length along a lineal path, compressing said superposed webs in a direction to the superposition thereof and to an extent of reducing the superposed height to below about 75% of the uncompressed height, passing said compressed webs through an open-ended forming device and simultaneously enveloping said superposed compressed webs within said forming device in an indefinite length with over lap folded wrapping material, sealing said over lap folded web means in the over lapped portion while maintaining said superposed webs under compression, and transversely severing the enveloped, compressed web at equally longitudinally spaced apart transverse lines in said path and while said webs are being advanced.

Claim 2

A method of manufacturing a packaged web product such as facial tissue, toweling and the like comprising: advancing at uniform speed a plurality of superposed webs of indefinite length along a lineal path, compressing said superposed webs in a direction to the superposition thereof and to an extent of reducing the superposed height to below about 75% of the uncompressed height, passing said compressed webs through an open-ended forming device and simultaneously enveloping said superposed compressed webs within said forming device in an indefinite length with over lap folded wrapping material, sealing said over lap folded web means in the over lapped portion while maintaining said superposed webs under compression, and transversely severing the enveloped, compressed web at equally longitudinally spaced apart transverse lines in said path and while said webs are being advanced.

Claim 15

A method of manufacturing a packaged web product such as facial tissue, toweling and the like comprising: advancing at uniform speed a plurality of superposed webs of indefinite length along a lineal path, compressing said superposed webs in a direction to the superposition thereof and to an extent of reducing the superposed height to below about 75% of the uncompressed height, partially relaxing the compression of said superposed webs and passing said compressed webs through an open-ended forming device having a closed perimeter shaped to the dimensions of said compressed superposed webs and simultaneously enveloping said superposed compressed webs within said forming device in an indefinite length with over lap folded wrapping material, sealing said wrapping material in the over lapped portion while maintaining said superposed webs under compression, and transversely severing the enveloped, compressed webs at equally longitudinally spaced apart transverse lines in said path and while said webs are being advanced.

Claim 16

A method of manufacturing a packaged web product such as facial tissue, toweling and the like comprising: advancing at uniform speed a plurality of superposed webs of indefinite length along a lineal path, compressing said superposed webs in a direction to the superposition thereof and to an extent of reducing the superposed height to below about 75% of the uncompressed height, partially relaxing the compression of said superposed webs and passing said compressed webs through an open-ended forming device having a closed perimeter shaped to the dimensions of said compressed superposed webs and simultaneously enveloping said superposed compressed webs within said forming device in an indefinite length with over lap folded wrapping material, sealing said wrapping material in the over lapped portion while maintaining said superposed webs under compression, and transversely severing the enveloped, compressed webs at equally longitudinally spaced apart transverse lines in said path and while said webs are being advanced.

Claim 17

A method of forming a rectangular cardboard tube about stacked superposed paper webs comprising providing a pair of elongated cardboard webs, transversely cutting each cardboard web inwardly from each longitudinal edge thereof a predetermined distance to terminate in a pair of longitudinal margin lines for each cardboard web, advancing said cardboard webs along spaced apart parallel paths and about said stacked superposed paper webs and longitudinally folding one cardboard web along its margin lines to dispose the margins thereof toward the other cardboard web, thereafter folding said other cardboard web along its margin lines to dispose the margins thereof in contacting relation with the margins of said one cardboard web while adhering said contacted margins together to form a continuous tube about said stacked superposed paper webs, and transversely severing said tube along longitudinally spaced apart lines.

Claim 18

A method of forming a rectangular cardboard tube about stacked superposed paper webs comprising providing a pair of elongated cardboard webs, transversely cutting each cardboard web inwardly from each longitudinal edge thereof a predetermined distance to terminate in a pair of longitudinal margin lines for each cardboard web, advancing said cardboard webs along spaced apart parallel paths and about said stacked superposed paper webs and longitudinally folding one cardboard web along its margin lines to dispose the margins thereof toward the other cardboard web, thereafter folding said other cardboard web along its margin lines to dispose the margins thereof in contacting relation with the margins of said one cardboard web while adhering said contacted margins together to form a continuous tube about said stacked superposed paper webs, and transversely severing said tube along longitudinally spaced apart lines.

Claim 19

A method of enveloping a continuous product comprising advancing said product along a predetermined path, advancing a first elongated cardboard web along a path below said predetermined path and advancing a second elongated cardboard web along a path above said predetermined path, said cardboard webs being equipped with longitudinally extending score lines spaced apart approximately the width of said continuous product to define side margins, said margins being cut at longitudinally spaced points with the cuts in the margins of said lower cardboard web being non-aligned with the cuts in the margins of said upper cardboard web, folding the margins of said lower cardboard web upwardly to partially embrace said continuous product, applying adhesive to the undersides of the margins of said upper cardboard web and thereafter folding said upper cardboard web margins downwardly into contacting adhering relation with the margins of said lower cardboard web, and transversely severing the enveloped product at longitudinally spaced lines.

Claim 20

A method of enveloping a continuous product comprising advancing said product along a predetermined path, advancing a first elongated cardboard web along a path below said predetermined path and advancing a second elongated cardboard web along a path above said predetermined path, said cardboard webs being equipped with longitudinally extending score lines spaced apart approximately the width of said continuous product to define side margins, said margins being cut at longitudinally spaced points with the cuts in the margins of said lower cardboard web being non-aligned with the cuts in the margins of said upper cardboard web, folding the margins of said lower cardboard web upwardly to partially embrace said continuous product, applying adhesive to the undersides of the margins of said upper cardboard web and thereafter folding said upper cardboard web margins downwardly into contacting adhering relation with the margins of said lower cardboard web, and transversely severing the enveloped product at longitudinally spaced lines.