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:
May. 03, 2016
Filed:
Oct. 15, 2012
Graham Packaging Company, L.p., York, PA (US);
Kevin D. Himes, Mount Wolf, PA (US);
Larry M. Taylor, Landisville, PA (US);
Graham Packaging Company, L.P., York, PA (US);
Abstract
A method for purging a molten thermoplastic material from a blow molding system. The method includes the steps of feeding the molten thermoplastic material into a flow head operably connected to a purge diverter valve including a channel and a closing member; opening the closing member, wherein the opening step diverts the thermoplastic material from the flow head into the channel and causes the thermoplastic material to flow through the channel; and collecting the thermoplastic material flowing through the channel. The method can be used to purge molten thermoplastic materials such as polyethylene terephthalate especially from an upward extruding blow mold system.