Binder device releasably engaging aperture or notch of sheet – Sheet
Reexamination Certificate
1998-04-14
2001-01-09
Fridie, Jr., Willmon (Department: 3722)
Binder device releasably engaging aperture or notch of sheet
Sheet
C281S022000, C281S038000, C283S101000, C428S041800
Reexamination Certificate
active
06171008
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an album leaf for receipt of planar pictures such as photographs or cards. It also relates to an album which comprises a plurality of such leaves.
2. Description of the Prior Art
In order to keep paper photographs in a representative manner it is common to use, for instance, photo albums. These albums are assembled commonly in form of album leaves which are bound together in a book like fashion, which leaves which consist of paper or cardboard and are separated from each other by, for instance, translucent thin separating sheets. The individual photographs can now be, for instance, glued onto these album leaves. For this task use is made of an adhesive or special small mounting flaps, which can be placed onto the album leaf in a self adhering manner and into which the corner areas of the photographs can be inserted. Further known are also mounting strips which stick at both of their surfaces and which can be placed in an adhering manner between the album leaf and the photographs. The drawback of these solutions is that, on the one hand auxiliary means are needed for the mounting of the photographs, and on the other hand a precise parallel alignment of the edges of the photographs relative to the edges of the album leaves is practically impossible due to the lack of a corresponding alignment aid, or is only possible at the cost of additional auxiliary devices.
Photo albums are known, furthermore, in which the separating leaves are not designed as separate leaves located between the album leaves proper, but rather as transparent foils connected in such a manner to the album leaf that pockets are formed which are accessible from one side only, into which the photographs can be inserted. Preferably, no additional mounting means are needed thereby. The manufacturing of such album leaves, however, requires a high precision. Specifically the connecting between the album leaves and the foil, which leads to high production costs, and the insertion of the photographs is often difficult when the pocket is of a close fitting size.
Great Britain patent document GB-PS 1 523 257 discloses, furthermore, for instance an album leaf on which two adhesive strips which are arranged parallel to each other are present on each side of the album leaf, onto which respective differing frames for the receipt of photographs can be placed in a removable manner. The photographs are, thereby, held by the frame or mounted therein, respectively. Two respective transparent partition leaves must, thereby, be placed between two adjacent album leaves, which, after the photographs or frames, respectively have been mounted, cover any respective adhesive areas not covered by the photographs or frames, respectively because otherwise the leaves of the album would remain clinging to each other. It has now been proven that the adhesive agents used for such applications, which form a releasable adhesive connection between only the partition leaves and the reverse sides of the frames, lead after a certain time to changes at the photographs themselves. Because specifically photo albums are designed for an extended time of storing photographs, such solutions can not be applied.
SUMMARY OF THE INVENTION
Hence, it is a general object of the present invention to provide a photo album leaf of the kind mentioned above onto which photographs can be deposited in a simple manner and which poses also for its production no high demands regarding the precision.
A further object is to provide a photo album leaf in which at least one area on at least one side of the leaf is provided with a contact adhesive, which area is completely covered by a release cover sheet which is detachable from the contact adhesive.
Thus, the photographs can be placed in a simple manner onto the contact adhesive areas after the easily removable release cover sheets have been removed. Accordingly, additional mounting devices for the photographs are advantageously avoided. The deposition of such adhesive areas can proceed mechanically in a simple manner; the corresponding machines can be of a simple design because no high demands are made regarding the precision of the positioning of the areas of the adhesives. Also, an adhesive agent can be advantageously used which is optimally designed for the photographs and which does not attack or discolor the photographic paper also after a prolonged time.
A further advantage is that the release cover sheet which covers the adhesive area can be made of a cellulose material, with only a small portion of silicate, in order to ensure the feature of an easy removal. By means of this the aspect of an environmentally harmless solution is also taken into consideration.
Still a further object of the invention is to provide a photo album which includes leaves structured in accordance with the present invention. Advantageously, common lightweight partition leaves are arranged between the individual album leaves.
REFERENCES:
patent: 4140565 (1979-02-01), Parker et al.
patent: 5030491 (1991-07-01), Shoesmith
patent: 5503435 (1996-04-01), Kline
patent: 5543190 (1996-08-01), Johnson et al.
patent: 5816730 (1998-10-01), Alspaw et al.
Evenson, McKeown, Edwards & Lenahan P.L.L.C.
Fridie Jr. Willmon
Ochsner & Co. Ing. G Ochsner
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