Receptacles – Closures – With closure opening arrangements for means
Patent
1989-06-06
1990-11-20
Marcus, Stephen
Receptacles
Closures
With closure opening arrangements for means
220276, 220359, 220367, 215260, 229120, 229DIG14, 206628, B65D 1734
Patent
active
049712187
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a packing container comprising a tear-off part defined by lines of weakness and having a starting portion connected with a handle clip. In order to form an opening in a wall of a packing container which is defined in an exact manner with respect to the surface area it is known, e.g. from EP-A-104 548 and EP-A-129 102, to incorporate a predetermined line of weakness, preferably in the upper surface of the cover, in the form of a notch which encloses a tear-off part. A handle clip, whose free end can be easily grasped with the fingers for removing the tear-off part, is connected, as tear-off means, with the narrow start portion of the tear-off part which tapers in the form of a tongue.
In addition, a packing container comprising an overpressure valve is known from EP-A-209 729 which allows gas produced during the storage of the filling material, e.g. carbon dioxide in the case of coffee, to escape so as to prevent the packing container from expanding.
SUMMARY OF THE INVENTION
The object of the invention is to provide a packing container with an overpressure valve which is easy to open and which is constructed in such a way as to economize on material. The object of the invention is achieved by providing a packing container wherein the handle clip is formed as an overpressure valve and closes the container opening.
The packing container, according to the invention, has the advantage that the handle clip and the overpressure valve are integrated in one part. Aside from economizing on material, this design has the additional advantage that the manufacturing of the predetermined line of weakness for the tear-off part and the manufacture of the perforation for the overpressure valve can be effected in a single work step, and the fastening of the combined handle clip/overpressure valve part at the packing container can likewise be effected in a single work step, so that the expenditure on labor in the manufacture of the container is also very low.
The novel features which are considered as characteristic for the invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction so to its mode of operation, together with additional objects and advantages thereof, will be best understood from the following description of preferred embodiments when read in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a perspective view of a head of a packing container with a tear-off arrangement according to the present invention; FIG. 2 shows a partial cross-sectional view of a cover of the packing container, according to FIG. 1, along line II--II of FIG. 1; FIGS. 3 and 4 show a top view of two other embodiments of a tear-off arrangement of a packing container according to the invention; FIG. 5 shows a cross-sectional view along line V--V in FIG. 4 of the tear-off arrangement shown in FIG. 4; and FIG. 6 shows a cross-sectional view of another embodiment of a tear-off arrangement.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
A packing container has a tubular or box-shaped body 1, and its upper opening is closed by a cover 2 which is sealed with the upper end of the body 1 by a U-shaped folded rim 3. The packing container is moisture-proof and gastight and is particularly suitable for packing foodstuffs and semi-luxury items which are sensitive to air and moisture.
The body 1 is formed from a multiple-layer packing material which has a weldable, thermoplastic layer on the inside. In the embodiment shown, the body 1 has a square cross-section with rounded corners; but its cross-sectional shape can also be circular, oval, rectangular or polygonal, wherein the corners are preferably rounded. The cover 2 closing the upper opening of the body 1 has a flat wall 4 and a U-shaped folded rim 3 which defines the latter, is adapted to the cross-sectional shape of the body 1, encloses the end of the body, and is tightly sealed with the inside and outside of the latter. The cover 2 is produce
REFERENCES:
patent: 2946502 (1960-07-01), Metzger
patent: 3989182 (1976-11-01), Stearley
patent: 4126263 (1978-11-01), Martensson
patent: 4215791 (1980-08-01), Brochman
patent: 4261504 (1981-04-01), Cowan
patent: 4461420 (1984-07-01), Horvath
patent: 4545498 (1985-10-01), Schmid
patent: 4762246 (1988-08-01), Ashley et al.
EP No. 0 104 548, Buchner, et al., Europaische Patentanmeldung, 4/1984.
EP No. 0 129 102, Buchner, et al., Europaische Patentanmeldung, 12/1984.
EP No. 0 209 729, Buchner, et al., Europaische Patentanmeldung, 1/1987.
Buchner Norbert
Domke Klaus
Marcus Stephen
Robert & Bosch GmbH
Striker Michael J.
Stucker Nova
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