Cover and method and device for manufacturing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 3, 1996
Grant Date -
N/A
app pub date -
Apr 8, 1994
filing date -
Aug 31, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cover comprising a spine (3), a strip of binding agent (4) connected to the spine, and two cover sides 1, 2) which are connected with the spine by means of a first pair of creasing lines (5, 6) extending parallel to the strip, the cover sides also being provided with a second pair of of creasing lines (7, 8) extending parallel to the strip, which creasing lines are at at short distance from the first pair and along which the cover sides are folded on opening and closing of the booklet, a sheaf of papers (20) being intended to be inserted into the cover with one side edge of the same in contact with the strip, such that on melting and subsequent cooling of the strip, the sheaf of papers will be connected to the spine to form a finished booklet. The second pair of creasing lines are deformed in such a way that when the cover sides of the cover are essentially parallel, the two portions (9, 10) between the two pairs of creasing lines exert an inwardly directed pressure against the not yet melted strip. The invention also relates to a method and a device for manufacturing the cover.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully