Bookbinding with plastic covers

Books – strips – and leaves – Book – element thereof – or accessory therefor – Covers

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

156212, 156257, 156272, 156273, 264295, B42D 100

Patent

active

039530566

ABSTRACT:
For binding books with plastic covers, this invention cuts the covers from plastic stock such as calendered sheets or continuous webs; and the plastic is preferably one that can be cut from the stock with a die used with a high frequency electromagnetic field for softening the plastic. In the preferred method, a tear line is formed around the outline of the cover and the cover is torn from the sheet with a smooth tear. The leaves constituting the filler for the book are assembled, stabilized with adhesive and then trimmed before assembly with the cover. With plasticized covers, provision is made for preventing migration of the plasticizer into the adhesive with possible resulting loss of strength of the adhesive. By using electromagnetic adhesive to stabilize the filler, the adhesive can be activated by an alternating electromagnetic field when desired to secure the filler to the spine portion of the cover.

REFERENCES:
patent: 2393541 (1946-01-01), Kohler
patent: 2478132 (1949-08-01), Schade
patent: 3088753 (1963-05-01), Sendor
patent: 3093396 (1963-06-01), Segreto
patent: 3168424 (1965-02-01), Sendor
patent: 3454694 (1969-07-01), Delaire et al.
patent: 3730806 (1973-05-01), Heller et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Bookbinding with plastic covers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bookbinding with plastic covers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bookbinding with plastic covers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1998096

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.