Envelope

Details Envelope Envelope

1999-09-10

2001-06-19

Kim, Eugene (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

C493S917000, C493S923000, C229S080500

Reexamination Certificate

active

06248049

ABSTRACT:

TECHNICAL FIELD
This invention relates to a printable sheet which can be folded and adhered to itself to form a substantially sealed envelope.
BACKGROUND ART
In one known prior art system, an employee's pay details are provided in a two-ply envelope in which the bottom layer takes a carbon imprint from an impact printer which strikes the top layer. To access the pay details, the employee separates the top layer from the lower layer and retains the lower layer which bears the carbon imprint.
Prior art envelopes formed from a folded sheet are known from European Patent Application 302,796, Australian Patent Application 20893/92, European Patent Application 568,266 and French Patent Publication 2,400,465.
DISCLOSURE OF INVENTION
This invention in one aspect resides in a printable sheet which can be passed through a printer, the printable sheet including:
active adhesive means for adhering portions of the printable sheet together when the sheet is folded to thereby form a substantially sealed envelope,
removable liner means for covering the active adhesive means prior to use, wherein, in use, the printable sheet including the active adhesive means and removable liner means is passed through a printer and the liner means is then removed to facilitate sealing of the envelope.
As used herein, the term “active” is used to indicate that the adhesive does not require heat, pressure, moisture or the like.
Preferably, the printable sheet includes a first portion and a second portion foldable together about a fold line to define a two-ply region bounded on one side by the fold line, the adhesive means extend substantially continuously about the periphery of the remaining sides of the two-ply region whereby, in combination with the fold line, the interior of the two-ply region may be rendered inaccessible, frangible means are disposed inside the adhesive means such that the first and second portions may be unfolded about the fold line when the frangible means are broken.
In another aspect the invention resides in a method of using a printable sheet including a fold line dividing the sheet into portions, active adhesive means for adhering the portions together when folded, and liner means for covering the active adhesive, the method including:
printing information on the sheet;
removing the liner means; and
folding and adhering the portions of the sheet together.


REFERENCES:
patent: 4012268 (1977-03-01), Johnsen
patent: 4923111 (1990-05-01), Down
patent: 5290225 (1994-03-01), Youner
patent: 5429576 (1995-07-01), Doderer-Winkler
patent: 5464255 (1995-11-01), Schildmeyer
patent: 5921065 (1999-07-01), Slyster et al.
patent: 2089392A (1993-02-01), None
patent: 297 09 202 U (1997-09-01), None
patent: 297 09 201 U (1997-09-01), None
patent: 302796A (1989-02-01), None
patent: 568266A (1993-11-01), None
patent: 2400465A (1979-03-01), None

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