Method of forming envelopes having inserts therein from a moving blank web

Claim 1

A method of forming envelopes having inserts sealed therein from a continuously moving web of uniform width having first and second outer edges comprising, advancing said web at a selected forward speed, forming a continuous adhesive strip along said first edge of said web, forming a selected spaced intervals along said web adhesive strips extending generally normal to said continuous strip beginning at said second edge of said web and proceeding across said web to a point remote and removed from said continuous adhesive strip, said spaced intervals approximating the length of envelope desired, placing insert materials on said moving web between said spaced adhesive strips, maintaining said insert materials in overlying contacting relationship with said moving web, cutting marginal portions from said moving web along said first edge at points in line with said spaced adhesive strips to thereby form closure flap portions on said moving web, cutting marginal portions from said moving web along said second edge and between said spaced adhesive strips to form bottom flap portions along said moving web, folding said bottom flap portions upwardly and inwardly into overlying relationship with said insert material whereby each said spaced adhesive strip is folded upon itself to thereby seal said inserts on said moving web, folding said closure flap portions into overlying contacting relationship with said bottom flap, and cutting said moving web transversely to its direction of travel along said spaced adhesive strips to thereby form individual envelopes having inserts sealed therein.

Claim 2

A method of forming envelopes having inserts sealed therein from a continuously moving web of uniform width having first and second outer edges comprising, advancing said web at a selected forward speed, forming a continuous adhesive strip along said first edge of said web, forming a selected spaced intervals along said web adhesive strips extending generally normal to said continuous strip beginning at said second edge of said web and proceeding across said web to a point remote and removed from said continuous adhesive strip, said spaced intervals approximating the length of envelope desired, placing insert materials on said moving web between said spaced adhesive strips, maintaining said insert materials in overlying contacting relationship with said moving web, cutting marginal portions from said moving web along said first edge at points in line with said spaced adhesive strips to thereby form closure flap portions on said moving web, cutting marginal portions from said moving web along said second edge and between said spaced adhesive strips to form bottom flap portions along said moving web, folding said bottom flap portions upwardly and inwardly into overlying relationship with said insert material whereby each said spaced adhesive strip is folded upon itself to thereby seal said inserts on said moving web, folding said closure flap portions into overlying contacting relationship with said bottom flap, and cutting said moving web transversely to its direction of travel along said spaced adhesive strips to thereby form individual envelopes having inserts sealed therein.

Claim 5

A method of forming envelopes having inserts therein from a continuously moving web of uniform width comprising, advancing said web at a selected forward speed, forming first and second preliminary fold lines on said moving web along lines inward of said web''s outer edges and parallel thereto, forming a continuous adhesive strip on said web between said first preliminary fold line and an edge of said web and parallel thereto, forming at selected spaced intervals along said web adhesive strips extending generally normal to said continuous adhesive strip beginning at the edge of said web nearest said second preliminary fold line and proceeding across the width of said web at least to said second preliminary fold line, said spacing between said strips approximating the length of envelope desired, placing insert materials on said moving web between said spaced adhesive strips, maintaining said insert materials in overlying contacting relationship with said moving web, cutting marginal portions from said moving web along said edge thereof nearest said first preliminary fold line and in line with said spaced adhesive strips to form Closure flap portions on said moving web, folding said moving web along said second preliminary fold line upwardly and inwardly whereby said inserts are sealed on said moving web, folding said closure flap portions along said first preliminary fold line into overlying contacting relationship with said moving web, and cutting said moving web transversely of its direction of travel along said spaced adhesive strips to form envelopes having inserts sealed therein.

Claim 6

A method of forming envelopes having inserts therein from a continuously moving web of uniform width comprising, advancing said web at a selected forward speed, forming first and second preliminary fold lines on said moving web along lines inward of said web''s outer edges and parallel thereto, forming a continuous adhesive strip on said web between said first preliminary fold line and an edge of said web and parallel thereto, forming at selected spaced intervals along said web adhesive strips extending generally normal to said continuous adhesive strip beginning at the edge of said web nearest said second preliminary fold line and proceeding across the width of said web at least to said second preliminary fold line, said spacing between said strips approximating the length of envelope desired, placing insert materials on said moving web between said spaced adhesive strips, maintaining said insert materials in overlying contacting relationship with said moving web, cutting marginal portions from said moving web along said edge thereof nearest said first preliminary fold line and in line with said spaced adhesive strips to form Closure flap portions on said moving web, folding said moving web along said second preliminary fold line upwardly and inwardly whereby said inserts are sealed on said moving web, folding said closure flap portions along said first preliminary fold line into overlying contacting relationship with said moving web, and cutting said moving web transversely of its direction of travel along said spaced adhesive strips to form envelopes having inserts sealed therein.