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US 5,073,182 AGranted
Process for manufacturing glass objects including spraying a cryogen onto the glass surface
AssigneeL'Air Liquide, Societe Anonyme pour l'Etudeet l'Exploitation des Procedes Georges Claude
InventorsFranck Virey, Daniel Goumy
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Abstract
A process for manufacturing glass objects such as bottles, in which a cold fluid containing a cryogen is sprayed around and/or under the bottles in the region of the transfer tongs and/or of the standby table in order to accelerate the cooling of the bottles and improve the quality of the latter and the productivity of the manufacturing machines. This cooling may be accompanied by a localized, or complete quenching of the bottle.
Claims9
A process for manufacturing a glass object comprising the successive following steps:
- a) supplying at least a first mould with a glass gob;
- b) at least partially shaping a glass object from the glass gob in the first mould to form a shaped glass object;
- c) extracting the shaped glass object from the first mould using a handling device and transporting with the handling device the extracted object still at a temperature where it is deformable;
- d) spraying, during at least a part of step c) onto at least a determined outer part of the object and adjacent the handling device, a fluid cooled at a temperature lower than ambient temperature and at a flow rate which is kept lower than a flow rate limit value beyond which deformations of said part of the object occur;
- and
- e) transferring the partially cooled object towards a further processing station, wherein the fluid to be sprayed contains a cryogen.
3 more elements
Dependencies are inferred from the claim text.