Internally disposed welded binding

Details Internally disposed welded binding Internally disposed welded binding

1988-11-30

1990-04-10

Yost, Frank T.

Books, strips, and leaves

Book, element thereof, or accessory therefor

283 72, 283100, 283105, 283901, 281 211, 281 22, 281 28, 281 51, 156908, B42D 100

Patent

active

049154150

ABSTRACT:
A passbook is provided that substantially prevents alteration or counterfeiting. The passbook is formed from a plurality of sheets of flexible material that are bound to one another at selected locations thereon by welding to define a substantially integral stub. The free edges of the welded pages are then folded back over the welded stub such that the stub is disposed interiorly. The welded stub is difficult to disassemble and reassemble without providing some indication of tampering. Furthermore, the disposition of the welded stub enables the passbook to be laid flat without creating stresses on the stub that could result in separation or delamination.

REFERENCES:
patent: 3560290 (1971-02-01), Sendor et al.
patent: 3925126 (1975-12-01), Leatherman et al.
patent: 3943024 (1976-03-01), Sendor et al.
patent: 4149288 (1979-04-01), Sendor et al.
patent: 4158587 (1979-06-01), Keller et al.

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