System and method for tempering glass containers
OwnerPremakaran T. Boazinventor
Life of this patent
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Abstract
A system and method is provided for tempering a glass container. The method includes the steps of pre-heating the glass container to a first predetermined temperature. The method also includes the steps of applying radio-frequency energy to the pre-heated glass container to heat the glass container to a second predetermined temperature and, after a predetermined amount of time, simultaneously cooling at least one surface of the heated glass container to a third predetermined temperature to treat the glass container. The method further includes the steps of, after a predetermined amount of time, quenching the treated glass container to a fourth predetermined temperature to produce a tempered glass container.
Claims20
A method for tempering a glass container comprising the steps of:
- pre-heating the glass container to a first predetermined temperature;
- applying radio-frequency energy to the pre-heated glass container to heat the glass container to a second predetermined temperature and, after a predetermined amount of time, simultaneously cooling at least one surface of the heated glass container to a third predetermined temperature to treat the glass container;
- and
- after a predetermined amount of time, quenching the treated glass container to a fourth predetermined temperature to produce a tempered glass container.
A method for tempering a glass container comprising the steps of:
- providing a plurality of plates spaced relative to each other to apply radio-frequency energy to the pre-heated glass container to heat the glass container to a predetermined temperature, wherein each of the plates includes a plurality of air-outlet holes spaced axially from each other on an inside surface of the plate for supplying air to an outside surface of the glass container;
- pre-heating the glass container to a first predetermined temperature;
- applying radio-frequency energy to the pre-heated glass container with the plates to heat the glass container to a second predetermined temperature and, after a predetermined amount of time, simultaneously cooling at least one surface of the heated glass container with the plates to a third predetermined temperature to treat the glass container;
- and
- after a predetermined amount of time, quenching the treated glass container to a fourth predetermined temperature to produce a tempered glass container.
A method for tempering a glass container comprising the steps of:
- providing a plurality of plates spaced relative to each other to apply radio-frequency energy to the pre-heated glass container to heat the glass container to a predetermined temperature, wherein each of the plates includes a plurality of air-outlet holes spaced axially from each other on an inside surface of the plate for supplying air to an outside surface of the glass container;
- providing a spindle and supporting and transporting the glass container between the plates with the spindle;
- pre-heating the glass container to a first predetermined temperature;
- spinning the pre-heated glass container with the spindle and applying radio-frequency energy to the pre-heated glass container with the plates to heat the glass container to a second predetermined temperature and, after a predetermined amount of time, simultaneously cooling at least one surface of the heated glass container with the plates to a third predetermined temperature to treat the glass container;
- and
- after a predetermined amount of time, quenching the treated glass container to a fourth predetermined temperature to produce a tempered glass container.
Dependencies are inferred from the claim text.