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:
Dec. 22, 1998
Filed:
Jun. 26, 1996
Herbert C Kroh, LaSalle, MI (US);
David E Crots, Ottawa Lake, MI (US);
Libbey Glass Inc., Toledo, US;
Abstract
The present invention is directed to an apparatus for pressing a glass article. The apparatus includes a frame. A mold having first and second mold halves are mounted on the frame. The mold halves define a cavity for receiving a glass gob. The mold halves are movable between open and closed positions. The apparatus includes a device for opening and closing the mold halves. A plunger is movably mounted on the frame adjacent the cavity. The plunger presses the glass gob into the cavity to form the glass article. The apparatus further includes a device for moving the plunger. An alternative embodiment of the invention is directed to a machine for pressing a plurality of glass articles at a high cavity rate. In this embodiment, the machine includes at least two apparatus as described above mounted on a device for moving the apparatus. The method of the present invention for using apparatus for pressing a plurality of glass articles at a high cavity rate includes the steps of: (a) rotating a carriage to which at least two apparatus as described above are attached; (b) actuating the device for opening and closing the mold to close the mold; (c) placing the glass gob adjacent the cavity; (d) actuating the device for moving the plunger to move the plunger to press the glass gob into the cavity to form the glass article; (e) withdrawing the plunger; (f) actuating the device for opening and closing the mold to open the mold a predetermined distance to cool the mold; and (g) actuating the device for opening and closing the mold to open the mold to remove the glass article from the cavity.