Apparatus and method for fabricating containers
AssigneeDiscma AG
InventorsGuillaume Chauvin, Christophe Collin, Damien Kannengiesser, Jean-Tristan Outreman, Jean-Louis Pellegatta
Life of this patent
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Abstract
An injection head for a container fabricating machine. The fabricating machine includes a first nozzle configured to establish fluid communication between an injection liquid source and a preform cavity in communication with a mouth disposed at an open end of the preform. The first nozzle of the injection head includes a substantially tubular spout configured to be inserted into the open end of said preform and thereby create a seal with the preform.
Claims17
An injection head for a container fabricating machine, comprising a first nozzle configured to establish fluid communication between an injection liquid source and a preform cavity of a substantially tubular preform, said preform cavity being in communication with a mouth defined by portions of said preform disposed at an open end of said preform, said first nozzle having a substantially tubular spout configured to be inserted into said open end of said preform and create a circumferential and axial seal therewith, the axial seal of the tubular spout having a sealing length greater than a width of the portions defining the mouth of said preform.
An injection head for a container fabricating machine, comprising a first nozzle configured to establish fluid communication between an injection liquid source and a preform cavity of a substantially tubular preform, said preform cavity being in communication with a mouth disposed at an open end of said preform, wherein said first nozzle further comprises a substantially tubular spout configured to be inserted into said open end of said preform and create a seal therewith, wherein the preform further comprises a neck ring disposed about the open end thereof at a distance from the mouth, the injection head being further characterized in that it comprises a second nozzle extending from and communicating with said first nozzle, said second nozzle comprising a substantially cylindrical nozzle cavity having an internal diameter greater than the internal diameter of said first nozzle, said nozzle cavity being bounded at a proximal end by said first nozzle and at a distal end by an annular shoulder seal defining an internal circumference of said nozzle cavity, such that said shoulder seal of said second nozzle creates a seal with a neck ring of the preform when said first nozzle is disposed in contact with the mouth of said preform.
A method for fabricating a container comprising the steps of:
- providing a substantially tubular preform comprising a preform cavity in communication with a mouth defined by portions of said preform disposed at an open end of said preform;
- disposing said preform in a mold having a mold cavity substantially in the form of a container;
- positioning an injection head in fluid communication with said preform, said injection head comprising a first nozzle configured to establish fluid communication between an injection liquid source and said preform cavity of said preform, said first nozzle comprising a substantially tubular spout inserted into said open end of said preform and creating a circumferential and axial seal therewith, the axial seal of the tubular spout having a sealing length greater than a width of the portions defining the mouth of said preform;
- and
- injecting an injection liquid from said injection liquid source through said injection head into the preform cavity of said preform, said preform being thereby induced to expand into the shape of said mold cavity.
A method for fabricating a container comprising the steps of:
- providing a substantially tubular preform comprising a preform cavity in communication with a mouth disposed at an open end of said preform;
- disposing said preform in a mold having a mold cavity substantially in the form of a container;
- positioning an injection head in fluid communication with said preform, said injection head comprising a first nozzle configured to establish fluid communication between an injection liquid source and said preform cavity of said preform, said first nozzle comprising a substantially tubular spout inserted into said open end of said preform and creating a seal therewith;
- injecting an injection liquid from said injection liquid source through said injection head into the preform cavity of said preform, said preform being thereby induced to expand into the shape of said mold cavity;
- and
- wherein the preform is provided with a shoulder in an interior surface thereof, and further comprising the step of abutting the tubular spout against said shoulder of said preform when inserted into the open end thereof during the positioning step.
An injection head for a container fabricating machine, comprising a first nozzle configured to establish fluid communication between an injection liquid source and a preform cavity of a substantially tubular preform, said preform cavity being in communication with a mouth disposed at an open end of said preform, wherein said first nozzle further comprises a substantially tubular spout configured to be inserted into said open end of said preform and create a seal therewith, the first nozzle further comprises an annular mouth seal disposed about the tubular spout, said mouth seal being urged against the mouth of the preform and creating a seal therewith when said tubular spout is inserted into the open end of said preform.
An ensemble for fabricating a container, the ensemble comprising an injection head and a preform, the preform having a substantially tubular body closed on one end, having a mouth defined by portions of the preform disposed on another end and defining a preform cavity therein, the injection head having a first nozzle configured to establish a fluid tight engagement with the preform, the first nozzle further including a substantially tubular spout configured to be inserted into the mouth of the preform and creating a circumferential and axial seal therewith, the tubular spout having a sealing length greater than a width of the portions defining the mouth of said preform.
Dependencies are inferred from the claim text.