The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2016
Filed:
Jun. 01, 2012
Sébastien Gravier, Vizille, FR;
Georges Kapelski, Vaulnaveys le Haut, FR;
Jean-jacques Blandin, Champ Pres Froges, FR;
Charles Josserond, Villard-bonnot, FR;
Sébastien Gravier, Vizille, FR;
Georges Kapelski, Vaulnaveys le Haut, FR;
Jean-Jacques Blandin, Champ Pres Froges, FR;
Charles Josserond, Villard-bonnot, FR;
UNIVERSITE JOSEPH FOURIER, Saint Martin d'heres, FR;
INSTITUT POLYTECHNIQUE DE GRENOBLE, Grenoble, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Paris, FR;
Abstract
A method for removing a part from a mold and to a machine for molding the part, the part made of a material having a glass-transition temperature and a melting temperature that is higher than the glass-transition temperature, and which is shaped in the cavity of a mold, includes at least two mold portions defining the shaping cavity therebetween. The mold is at a temperature between the glass-transition temperature and the melting temperature. The method includes opening the mold by spacing apart the mold portions, locally spraying a cooling gas toward the part remaining in a portion of the mold using at least one nozzle, and, after a predetermined time period following the start of spraying the gas, ejecting the part from the portion of the mold, the time period being such that the part reaches a temperature that is lower than the glass-transition temperature thereof.