Bag suspending device

Details Bag suspending device Bag suspending device

2000-01-12

2001-04-10

Pascua, Jes F. (Department: 3727)

Flexible bags

Lifting or suspending element

Single element

C383S013000, C383S026000, C383S024000

Reexamination Certificate

active

06213640

ABSTRACT:

FIELD OF THE INVENTION
The invention relates to the field of bags fitted with devices enabling them to be hung up.
BACKROUND OF THE INVENTION
Bags are known that have a cord for drawing together the edges of the openings so as to close them. In practice, this primary function of the cord is now associated with the function of suspending the bag.
Such a cord is generally made out of a material that is unsuitable for being recycled by the same method as the bag, and in addition, installing the cord requires manual operation, giving rise to a manufacturing process that is relatively lengthy.
The present invention seeks to mitigate those drawbacks by using a suspension device that is less expensive, that facilitates recycling, and that is suitable for automated assembly.
SUMMARY OF THE INVENTION
According to the invention, the bag suspension device is constituted by a suspensive portion for suspending the bag and by a fixing portion serving to attach the suspensive portion to the bag, and is characterized in that the device is constituted by a single piece of plastics material in which the suspensive portion forms a loop and the fixing portion is formed by an element integrally formed with the loop and adapted to pass through the or each wall of the bag or one or more extensions thereof, and to be held thereto.
The element constituting the suspensive portion is formed by a closed loop. The element which constitutes the fixing portion is advantageously a cylindrical shaft having one end secured to the suspensive portion and its other end free.
The free end can be in the form of a point so as to make it easier to pierce the film constituting the walls of the bag, said film being optionally already pre-pierced. After the fixing portion has been passed through the walls of the bag, its free end is flattened, e.g. by stamping, or is subjected to some other operation that gives this end the function of holding the fixing portion in the holes of said walls. For example, this operation may be performed by melting or by thermally softening the free end of the fixing portion.
The plastics material constituting the device of the invention is selected from the family of materials comprising polyolefins, and more particularly polypropylene or high density polyethylene, associated with respective copolymers such as polyacetal, e.g. as sold under the registered trademark DELRIN®. Such a material has the advantage of being very similar to the material of the plastics film that usually constitutes the bag and of being miscible therewith, so as to enable the entire bag and fixing device assembly to be recycled by a single method.
Another advantage of the device of the invention is that it can be installed automatically.


REFERENCES:
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patent: 4947523 (1990-08-01), Robbins, III et al.
patent: 4967451 (1990-11-01), Boyn
patent: 1 536 103 (1971-05-01), None
patent: 568872 (1945-04-01), None
patent: 2042468 (1980-09-01), None

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