Glass manufacturing – Processes – With measuring – sensing – inspecting – indicating – or testing
Reexamination Certificate
2000-10-06
2004-03-09
Vincent, Sean (Department: 1731)
Glass manufacturing
Processes
With measuring, sensing, inspecting, indicating, or testing
C065S158000, C065S160000, C065S318000, C065S322000, C065S362000
Reexamination Certificate
active
06701748
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates generally to a glassware machine. More specifically, the invention is directed to a glassware machine for forming a glassware article having a moveable plunger operatively connected to an electric motor.
Glassware machines having a fluid actuator in communication with a plunger are known in the art. These types of glassware machines are often difficult to control thereby resulting in inferior pressed glassware articles. Accordingly, there is a need for an improved glassware machine that can be precisely controlled to improve pressing efficiency. The present invention satisfies this need.
SUMMARY OF THE INVENTION
The present invention is directed to a glassware machine having a glassware mold and a moveable plunger positioned adjacent to the glassware mold for pressing a glass gob in the glassware mold to form a glassware article. An electric motor, such as a linear servomotor, is operatively connected to the plunger to move the plunger with respect to the glassware mold.
A primary object of the present invention is to provide a glassware machine having an electric motor that provides precise pressing of a glass gob to form a glassware article.
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Catalog pages entitled “Lynch Barrel Cam Press”, published by Lynch Machinery—Miller Hydro, Inc. of Bainbridge, Georgia, Undated.
Catalog pages entitled “Lynch Motor Driven Press”, published by Lynch Machinery—Miller Hydro, Inc. of Bainbridge, Georgia, Undated.
Catalog pages entitled “Platinum™ DDL Direct Drive Linear Motors”, published by Kollmorgen Motion Technologies Group of Commack, New York, Undated.
Catalog pages entitled “Design and operation”, published by RSF Elektronik Ges.m.b.H. of Tarsdorf, Austria, Undated.
Hanneman Craig A.
Hartman Terry E.
Mechel John R.
Miller Richard A.
Emch, Schaffer, Schaub & Porcello & Co., L.P.A.
Libbey Glass Inc.
Vincent Sean
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