Abstract: Business forms are sealed by pressure with reduced tenting and pillowing. Each form has a strip of pressure sensitive adhesive of a predetermined width. In an automatic continuous, sequential manner, upper and lower rollers operatively biased together by spring pressure activate the pressure sensitive adhesive to affix one part of the form to another. The force applied by the rollers is applied only to the approximate area of the predetermined width of the adhesive, not over the whole form. Conveyor tapes are associated with the rollers to facilitate conveyance of the forms, and a pressure of about 120 lbs. per lineal inch is applied to the pressure sensitive adhesive. A buckle or insert folder can be used to fold the forms, and they are then fed to a first pressure sealing module. A 90.degree. transfer conveyor conveys the forms from the first pressure sealing module to a second module, and from the second module they are removed by a discharge conveyor.

Abstract: Business forms are sealed by pressure with reduced tenting and pillowing. Each form has a strip of pressure sensitive adhesive of a predetermined width. In an automatic continuous, sequential manner, upper and lower rollers operatively biased together by spring pressure activate the pressure sensitive adhesive to affix one part of the form to another. The force applied by the rollers is applied only to the approximate area of the predetermined width of the adhesive, not over the whole form. Conveyor tapes are associated with the rollers to facilitate conveyance of the forms, and a pressure of about 120 lbs. per lineal inch is applied to the pressure sensitive adhesive. A buckle or insert folder can be used to fold the forms, and they are then fed to a first pressure sealing module. A 90.degree. transfer conveyor conveys the forms from the first pressure sealing module to a second module, and from the second module they are removed by a discharge conveyor.

Abstract: A multi page mailer type business form is constructed by applying a first adhesive pattern to the top sheet bottom face perimeter areas, a second adhesive pattern to the bottom sheet top face perimeter areas, and applying third and fourth adhesive patterns to the middle sheet top and bottom face perimeter areas respectively. Variable information is printed on the top, bottom and middle sheets including machine readable identification information (bar code) which is common to the sheets that are to be assembled into a final multi page mailer. The set is accumulated, and verified by scanning the identification of information, and then the perimeter adhesive patterns are sealed. The adhesive is preferably pressure sensitive adhesive, and the final mailer produced has a book-like construction. The adhesive patterns are such that the top and bottom sheets can be provided in a stack without the perimeter adhesive patterns aligning, and the middle sheets can be provided in a separate stock.

Abstract: A multi page mailer type business form is constructed by applying a first adhesive pattern to the top sheet bottom face perimeter areas, a second adhesive pattern to the bottom sheet top face perimeter areas, and applying third and fourth adhesive patterns to the middle sheet top and bottom face perimeter areas respectively. Variable information is printed on the top, bottom and middle sheets including machine readable identification information (bar code) which is common to the sheets that are to be assembled into a final multi page mailer. The set is accumulated, and verified by scanning the identification information, and then the perimeter adhesive patterns are sealed. The adhesive is preferably pressure sensitive adhesive, and the final mailer produced has a book-like construction. The adhesive patterns are such that the top and bottom sheets can be provided in a stack without the perimeter adhesive patterns aligning, and the middle sheets can be provided in a separate stack.

Abstract: An edge sealer includes a heater anvil having a heater band disposed in a convex configuration and lying opposite a drive belt. Multi-ply business forms are conveyed along the edge sealer, with the edge of the form extending between the belt and the heater band. Application of heat by the heater band to the edge activates the heat-sensitive adhesive to adhesively seal the edges of the plies one to the other without applying heat to the body of the form. A conveyor system transfers forms from one conveyor to another without change of spatial orientation of the forms to pass the unsealed edges of the forms through an additional edge sealing unit downstream of the first edge sealing unit.

Abstract: An envelope comprising a sheet of paper or the like which is folded along one foldine and then folded along a second foldline perpendicular to the first line to provide an envelope with an address viewable through a window but wherein an insert in the envelope cannot move to and obscure the view of the address through the window. One embodiment includes a return envelope made up of a portion of the aforesaid sheet and a second sheet which overlies said portion of the first sheet. Another embodiment provides a mailer without a viewing window and which is formed from a single ply foldable about orthogonally related foldlines and heat sealable along its edges to form a four-ply mailer.

Abstract: A mailer made of rectangular (or square) sheet of paper with strips of adhesive along given edges which may be folded along two fold lines to provide an eccentric Z-folded article suitable for mailing, with inserts nested therein if desired.

Abstract: An envelope comprising a sheet of paper or the like which is folded along one foldline and then folded along a second foldline perpendicular to the first line to provide an envelope with an address viewable through a window but wherein an insert in the envelope cannot move to and obscure the view of the address through the window. One embodiment includes a return envelope made up of a portion of the aforesaid sheet and a second sheet which overlies said portion of the first sheet. Another embodiment provides a mailer without a viewing window and which is formed from a single ply foldable about orthogonally related foldlines and heat sealable along its edges to form a four-ply mailer.