Books – strips – and leaves – Book – element thereof – or accessory therefor – Covers
Patent
1989-03-28
1990-05-29
Watts, Douglas D.
Books, strips, and leaves
Book, element thereof, or accessory therefor
Covers
281 48, 412 8, 156216, B42D 300, B42D 1700, B42C 900, B42B 304
Patent
active
049289950
ABSTRACT:
Cover folders for permanently binding a stack of paper sheets without the use of fasteners. The cover folder has a binder spline which contains a quick drying adhesive which is protected by a removable protective film. The film is removed just prior to use to expose the adhesive. The cover folder allows for quick permanent binding of the stack of paper sheets which are pressed into contact with the adhesive. In alternative embodiments the adhesive may be applied directly to the binder spline from a dispenser and the stack of sheets then inserted in the spline. The dispenser may be in the form of a squeezable tube or pouch positioned in the binder spline. As the tube or pouch is pulled it ruptures, releasing adhesive into the spline channel.
REFERENCES:
patent: 4129471 (1978-12-01), Rome
patent: 4184218 (1980-01-01), Hawkes
patent: 4244069 (1981-01-01), Hale
patent: 4441950 (1984-04-01), Lolli
patent: 4575123 (1986-03-01), Giblin et al.
patent: 4673324 (1987-06-01), Hanson et al.
patent: 4707215 (1987-11-01), Scarlata
patent: 4750956 (1988-06-01), Malachowski
patent: 4793758 (1988-12-01), Hanson et al.
Bhatia Sushil K.
Chevrette Roger N.
Pickering John H.
Rath Mihira K.
Dennison Manufacturing Company
Heyrana Paul M.
Josephs Barry D.
Watts Douglas D.
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