U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Case with pressure sensitive adhesive covered spine strip

Patent 5078425 Issued on January 7, 1992. Estimated Expiration Date: Icon_subject July 9, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3730560

3749422

3834739

3912304

Inventor

Assignee

Application

No. 550323 filed on 07/09/1990

US Classes:

281/21.1, Binding281/15.1, BOOK, ELEMENT THEREOF, OR ACCESSORY THEREFOR281/29Covers

Examiners

Primary: Echols, P. W.
Assistant: Bryant, David P.

Attorney, Agent or Firm

International Class

B42D 003/00

Abstract

The apparatus and case are used with a core formed of sheets and end sheets covered on their exteriors with pressure sensitive material initially protected by release paper all bound togehter by narrow plastic binding strips along the spine edges of the core. The novel case for such a core has a spine having a strip of material covered by pressure sensitive adhesive of a width substantially greater than the thickness of the core plus twice the width of the binding strips, the same strip preferably being glued or otherwise permanently affixed to the spine of the case and extending outward to the inner edges of Davey board cover stiffeners (if used). The apparatus has right and left horizontal platens movable in and out relative to the center. The case is placed on the platens and centered. The core is held in a pivotable clamp behind the platens and is pivoted down so that the spine edge of the core is firmly attached to the spine strip of the case and continued pivoting depresses the spine of the case to the extent that the core binding strips are below the platens. The platens are then brought inward, attaching the spine strip to the end sheets. The book is rolled between rollers which engage above the plastic binding strips and below the Davey boards, thus completing firm attachment of the case to the core.

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