Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With work feeding or handling means
Reexamination Certificate
1999-07-26
2003-07-29
Crispino, Richard (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With work feeding or handling means
C156S556000, C156S567000, C156S568000, C156SDIG001, C156SDIG003, C156SDIG004
Reexamination Certificate
active
06598647
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a device for the application of detachable coupons to substantially parallelepiped packets.
In particular, the invention can be employed to advantage in machines for manufacturing packets of cigarettes, and it is to this art field that direct reference is made in the following specification, albeit with no limitation in scope implied.
The term “coupon” is employed throughout the present disclosure to indicate a slip of paper or a card printed on at least one side and intended as a trading stamp, or an advertising medium, which in many countries is associated with single packets of cigarettes.
Coupons can be placed inside the packet between an inner wrapper of metal foil paper and an outer wrapping (the inner wrapper enveloping a group of cigarettes), or alternatively, applied directly to the outer wrapping.
Of the two methods mentioned, the more popular in recent times has been that of applying the coupon directly to the outer wrapping, even though this involves the use of dedicated applicator devices which, remembering the high velocities at which the packets are caused to advance along the wrapping lines and the level of precision required, tend to become increasingly complicated, cumbersome and costly.
It has been found for example that when a printed coupon is placed inside the packet and located in contact with the internal wrapper enveloping the cigarettes, the vapours given off by the inks on the printed face of the coupon can affect the aroma of the tobacco in the cigarettes.
BACKGROUND ART
The prior art relative to the field of machines for manufacturing packets of cigarettes also embraces the practice of applying a slip of paper, generally a government revenue stamp, to the outer wrapping of each packet. The relative operation is carried out by applicator devices of conventional type as the packets are transferred along a predetermined path from a packaging machine toward a successive overwrapping machine by which each assembled packet is enveloped in a sheet of transparent material.
Given the need to carry out both the operations in question on the outer wrapping of each packet, i.e. to apply a revenue stamp and a coupon at one and the same time, drawbacks both of a technical nature and of an economical nature are involved.
In particular, a packaging machine equipped both with applicator devices for affixing revenue stamps and with applicator devices for affixing coupons can assume overall dimensions not always compatible with the space available, and there are also mechanical complications that tend to impact heavily on the structural and functional efficiency of the machine, reducing its reliability and significantly increasing its cost.
The object of the present invention is to provide a device for the application of detachable coupons to substantially parallelepiped packets, such as can be guaranteed free of the drawbacks described above and embodied as simply as possible.
DISCLOSURE OF THE INVENTION
According to the present invention, the stated object is realized in a device for the application of detachable coupons to substantially parallelepiped packets in machines for the manufacture of packets to which revenue stamps are applied, separate from the coupons, comprising conveyor means by which the packets are advanced in succession along a set path toward a station at which the stamps are affixed, of which the essential feature is that it comprises applicator means in the vicinity of the affixing station, disposed and embodied in such a manner as to apply both the stamps and the coupons to the packets.
The present invention also relates to a method of applying detachable coupons to substantially parallelepiped packets.
A method according to the invention for applying detachable coupons to substantially parallelepiped packets in machines for manufacturing such packets comprises the steps of advancing the packets in succession along a predetermined path toward an affixing station and applying a revenue stamp to each packet passing through the station, a coupon being applied to each packet at the affixing station together with a relative stamp.
REFERENCES:
patent: 2621434 (1952-12-01), Jackson et al.
patent: 4602977 (1986-07-01), Voltmer et al.
patent: 5019207 (1991-05-01), McCoy
patent: 5111633 (1992-05-01), Draghetti
patent: 218 925 (1987-04-01), None
patent: 97/32785 (1997-09-01), None
Berquist Davidson
Crispino Richard
G.D S.p.A.
Klima & Jackson LLP
Purvis Sue A.
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