US3380576A - Tobacco pouches - Google Patents

Description

April 30, 196s K. H. DEIMANN 3,380,576

TOBACCO POUCHES Filed June 9. 1966 4 Sheets-Sheet l Fig! (NVEN TDR.'

'0391. 14E/N2 DEfNIV/V Py.' 07M ml,

ATTaen/Eys April 30, 1968 K. H. DEIMANN TOBACCO POUCHES 4 Sheets-Sheet 2 Filed June 0, 1966 Q/o lril Y v 1 INVENI'Q:

rr aen/sys prl 30, 1968 K. H. DEIMANN TOBACCO POUCHES 4 Sheets-Sheet 5 Filed June 9, 1966 WLr l l I INVENTOR:

from/sys April 30, 1968 K. H. DEIMANN 3,380,576

TOBACCO POUCHES Filed June e, 196e 4 sheets-sheet 4 INVENTOR KARL HEINZ DEIMANN United States Patent O 3,380,576 TOBACCO POUCHES Karl Heinz Deimann, Gevelsberg, Westphalia, Germany,

assignor to Alfred Schmermund, Gevelsberg, Westphalia, Germany Filed June 9, 1966, Ser. No. 556,438 Claims priority, application Great Britain, .lune 21, 1965,

4 Claims. (Cl. 206-41) ABSTRACT OF THE DISCLOSURE A tobacco pouch is disclosed which comprises a pocket of sheet material, a flap of sheet material, and tape adhesively secured to an edge of the pocket and an adjacent portion of the flap to hermetically seal the pocket opening, the tape comprising a base of air-impermeable material provided with a continuous layer of a resealable adhesive, the tape having non-adhesive marginal surface portions extending along each side of the tape for facilitating removal of the tape from the pouch to open the pocket.

Disclosure of the invention The present invention relates to tobacco pouches.

Tobacco contained in tobacco pouches is liable to dry out if the pouches have large openings which are not hermetically sealed. This is particularly true for tobacco pouches which are closed merely by folding or rolling.

It is an object of the present invention to provide a tobacco pouch which is cheap to manufacture and which has means for sealing an opening for inserting tobacco into and removing tobacco from the pouch.

For sealing an opening in a tobacco pouch through which tobacco may be inserted into and removed from the pouch, the present invention envisages an adhesive tape which is impermeable to air and has on one side, a continuous adhesive layer and, on the same side, an adhesivefree marginal surface portion for facilitating removal of the adhesive tape when the adhesive tape is secured by its adhesive layer over the opening.

These and other objects and advantages of the invention will become apparent from the following detailed description of an embodiment of the invention when read with reference to the accompanying drawings, which are given by way of example and in which:

FIG. 1 is a plan view of part of an adhesive tape of the invention;

FIG. 2 is a section along the line lI-II of FIG. l, the section being on an exaggeratedly large scale;

FIG. 3 illustrates a tobacco pouch of a known type;

FIG. 4 illustrates a tobacco pouch of the invention;

FIG. 5 is a section along the line V-V of FIG. 4 on an exaggeratedly large scale; and

FIG. 6 shows a perspective View of the tobacco pouch of FIGS. 4 and 5 when filled with tobacco.

The adhesive tape shown in FIGS. l and 2 comprises a base or backing strip 1 of any suitable material, such as transparent plastics material, which is impermeable to air. At one face, the base 1 is coated with a continuous layer 2 of a pressure responsive adhesive material. Non-adhesive covering strips 3 extend along each longitudinal margin of the adhesive tape and are secured by the adhesive layer 2 to the backing strip 1 to mask marginal portions of the adhesive layer 2 and thereby to provide an adhesive-free marginal surface portion along each margin of the adhesive tape on the adhesive side of the tape. The covering strips 3 each have a width of 1/3 the width of the base 1, so that 1A of the adhesive layer 2 is left exposed for securing the tape.

The tobacco pouch generally indicated in FIG. 3 by Patented Apr. 30, 1968 reference numeral 11 comprises a tobacco-receiving pocket 12 which is open along an edge 13 and a flap 14 contiguous with one wall of the pocket 12. This tobacco pouch can be closed by folding or rolling the flap 14 around the pocket 12.

The tobacco pouch is formed by placing a covering 16 in the form of an endless band of transparent plastics material over a paper or synthetic plastics material insert 17, which may be printed to indicate the type of tobacco for which the pouch is intended, the manufacturers name and other information. The sandwich of the insert 17 between two layers of the covering 16 thus provided is then folded into the shape shown in FIG. 3, and the layers of the covering 16 are welded together along edges 18 to form the pouch 11. An adhesive tab 19 is provided for securing the flap 14 when the flap 14 is folded over the pocket 12.

FIGS. 4, 5 and 6 show a tobacco pouch embodying the invention, the pouch being generally indicated by reference numeral 21, and comprising a tobacco-receiving pocket 22 and a flap 24. The pouch 21, as thus far described, is similar to the pouch 11 and is made in the same way as the pouch 11 by folding a covering 26 of transparent material containing a printed insert 27 and welding the covering 26 along edges 28, an adhesive tab 29 being provided which corresponds to the adhesive tab 19.

However, the pouch 21 differs from the pouch 11 by the provision of an adhesive tape 25, which is impermeable to air, for hermetically sealing an edge 23 (FIG. 4) of the tobacco-receiving pocket 22 to the flap 24. The adhesive tape 25 is an adhesive tape as hereinbefore described with reference to FIGS. 1 and 2, the covering strips 3 lying adjacent the tobacco-receiving pocket 22 and the flap 24 and preventing the longitudinal margins of the side of the adhesive tape 25 facing the pouch from adhering to the pouch 21.

For removing the adhesive tape 25, from the pouch 21, the adhesive tape 25 may be readily gripped at the adhesive-free marginal surface portions and pulled away from the edge 23. After the required amount of tobacco has been removed from the pocket 22, the opening of the pocket 22 may be resealed by applying the adhesive tape 25 across this opening so that the exposed portion of the adhesive layer 2 adheres to the edge 23 and the flap 24 as illustrated in FIG. 5, and flap 24 is then folded or rolled around the pocket 22 and secured by the adhesive tab 29.

It will be seen that the opening of the pocket 22 is hermetically sealed by the adhesive tape 25. Therefore, the pouch, which is cheap to manufacture may be sold together with tobacco in the pocket 22, the tobacco being prevented from drying during storage by the hermetic seal afforded by the tape 25, the Walls of the pocket being made, in known manner, of air-impermeable plastics sheet material. If desired, the tape 25 may be thrown away after its first removal since rolling the iiap 24 over the opening of the pouch sufficiently prevents the tobacco from drying during the comparatively short time required for using the tobacco in the pouch after the pouch filled with tobacco has been sold and has been opened by the consumer of the tobacco.

It should be clearly understood that the embodiment described is given by way of example only, and that modiiications, omissions and additions are possible without departing from the spirit of the invention.

I claim:

1. A tobacco pouch comprising a pocket having two adjacent walls of air-impermeable sheet material, a flap of air-impermeable sheet material, said flap being contiguous with one of said walls, said pocket having an opening between a marginal part of the other one of said walls and an adjacent part of said flap for the insertion of tobacco into and removal of tobacco from said pocket, and an adhesive tape, said tape comprising an air-impermeable exible base, and an eiectively continuous layer of pressure-sensitive adhesive on one side of said base for removably securing said tape by adhesion to said marginal part and said adjacent ap part thereby sealing said opening, said one side of said base having two non-adhesive marginal portions, each extending along one of the longitudinal edges of said base for facilitating removal of said tape from said opening.

2. A tobacco pouch as defined in claim 1, wherein said one side of said base is provided with a layer of resealable adhesive.

3. A tobacco pouch as defined in claim 1, wherein said layer of adhesive extends substantially across the entire width of said base, said two non-adhesive marginal portions being formed by two non-metallic strips of non-adhesive material, each being narrower than one half the width of said base, said base and said two strips being held together by said adhesive layer.

4. A tobacco pouch as defined in claim 1 and further comprising an insert printed with advertising matter.

References Cited UNITED STATES PATENTS 2,271,279 1/1942 Thomas 206-41 X 2,673,643 3/1954 Blank et al. 206--59 3,256,941 6/1966 Rivman 229-62 MARTHA L. RICE, Primary Examiner.

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