The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1976
Filed:
Feb. 22, 1973
Neil A Polit, Cary, IL (US);
Xerox Corporation, Stamford, CT (US);
Abstract
Method and apparatus for binding a stack of sheets whereby a binding member including a substrate material having at least one strip of heat activated adhesive is employed to form the desired book-like assembly. The binding member includes a low tack adhesive material extending longitudinally along the central portion of the substrate material and a high tack material extending longitudinally adjacent the low tack material and on either side thereof on the substrate material. The stack of sheets is transported into engagement with the binding member, the member being thus deformed so the low tack adhesive material is in contact with one edge of the sheets of the stack and the high tack adhesive material is in contact with the outer sheets of the stack. Heat is applied to the adhesive to cause the high tack material and low tack material to adhere to the portions of the stack in contact therewith. Pressure is applied to the side portions of the deformed substrate material so the high tack material is firmly pressed into contact with the outer sheets of the stack. Pressure is also applied to the portion of the substrate material in contact with the one edge of the sheets. A bond is thus formed between the substrate material and the stack of sheets to provide a book-like assembly.