Bottles and jars – Attachment or adjunct
Patent
1996-03-04
1998-09-08
Weaver, Sue A.
Bottles and jars
Attachment or adjunct
215 40, 215 42, 425468, B29C 4958, B65D 102, B65D 146
Patent
active
058032916
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention aims to propose means--method and arrangement--making it possible to position a thermoplastic container or container blank having a neck having a substantially cylindrical axisymmetric inside wall, with a predetermined angular orientation on a carrier mandrel introduced inside the said neck, the mandrel including a mandrel body equipped with retaining means capable of interacting positively with the neck to secure the latter to the mandrel body.
The need for predetermined angular positioning of a container such as a bottle or flask or of a container blank may arise at various steps in the process for manufacturing the container from a blank or alternatively in a process for treating an already-formed container.
To focus the mind, a common, but of course nonlimiting, example relates to flasks with a flat body, of the type frequently employed for certain household cleaning products, which are equipped with a trigger-operated spray device screwed onto the neck: it is therefore desirable, to reduce the bulk, for the spray device to be located on the neck such as to extend parallel to the largest dimension of the body of the container. This results in the need, during the manufacture of the body of the container (by blow molding or stretch blow molding of an axisymmetric cylindrical blank), for the direction of greatest deformation of the body of the original blank (and leading to the largest dimension of the flattened body of the final container) to be positioned angularly in a precise manner with respect to the start of the screw thread of the neck (which neck is at its final dimensions as soon as it has been manufactured by injection molding of the blank). In this context, there are therefore grounds for angularly positioning the blank in a precise and predetermined manner on the mandrel called upon to carry it.
SUMMARY OF THE INVENTION
The object of the invention is therefore essentially to propose means--method and arrangement--making it possible to give a container or container blank the required predetermined angular positioning on a carrier mandrel, preferably making sure that, as far as possible, the means in question lead only to minimum modifications of the machines so that it may be possible for already-existing machines easily to be equipped with the means of the invention.
To these ends, according to a first of its aspects, the invention proposes a method for positioning a thermoplastic container or container blank having a neck having a substantially cylindrical axisymmetric inside wall, with a predetermined angular orientation on a carrier mandrel introduced inside the said neck, the mandrel including a mandrel body equipped with retaining means capable of interacting positively with the neck to secure the latter to the mandrel body, which method, established in accordance with the invention, is essentially characterized in that: body of the mandrel such that the neck is axially secured to the mandrel body but free to rotate thereon, and which is located at a point thereof which has a predetermined angular orientation and which is situated, at least in part, opposite a given axial portion of the internal wall of a neck mounted on the mandrel and retained thereon by the aforementioned retaining means, predetermined point of the aforementioned axial portion of the internal wall of the neck, and the retaining means and the body of the mandrel is brought about until the radial projection of the neck comes to bear against the fixed radial stop of the body of the mandrel, by virtue of which the container or blank is brought onto and retained on the mandrel with a predetermined angular orientation with respect to the body of the mandrel.
In the common case of an installation for manufacturing or processing containers as they progress, in which installation each mandrel is mobile and displaced parallel to itself (transfer chain) at the same time as it is given a rotation on itself, provision is advantageously made according to the invention that once
REFERENCES:
patent: 4288478 (1981-09-01), Kinoshita et al.
patent: 4305902 (1981-12-01), Uhlig
patent: 4379688 (1983-04-01), Tate et al.
patent: 4649068 (1987-03-01), Collette
patent: 4711624 (1987-12-01), Watson
patent: 5366774 (1994-11-01), Pinto et al.
Sidel
Weaver Sue A.
LandOfFree
Method and arrangement for positioning a container or container does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and arrangement for positioning a container or container , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and arrangement for positioning a container or container will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1273960