Abstract: Method and apparatus for controlling the delivery of polymer material in a sequential injection molding process. In one embodiment, the method provides: delivering a first shot of a first material simultaneously to a plurality of mold cavities; independently sensing for each cavity a property that is indicative of a volume or flow of material that is delivered to the corresponding cavity during the step of delivering the first shot; independently stopping the step of delivering the first shot to one or more cavities according to a program that uses as a variable a signal indicative of the property sensed for the corresponding cavity during delivery of the first shot; and delivering a second shot of a second material simultaneously to the cavities subsequent to the step of stopping the step of delivering the first shot.
Type:
Grant
Filed:
January 13, 2010
Date of Patent:
February 22, 2011
Assignee:
Graham Packaging Company, LLP
Inventors:
Thomas E. Nahill, Sam Kalmouni, Nikhil Mani, Keith Barker, Brian Lynch
Abstract: Disclosed herein is a container and handle assembly comprising a container having at least one anchor having a portion embedded in a body of the container. The anchor has an unembedded portion with an attachment site. The assembly further comprises a handle formed separately from the container, where the handle has a mating attachment site for engaging the attachment site of the unembedded portion of the anchor. Also disclosed are methods of forming a container having at least one anchor partially embedded therein.
Type:
Grant
Filed:
May 10, 2006
Date of Patent:
October 13, 2009
Assignee:
Graham Packaging Company, LLP
Inventors:
Amit S. Agrawal, David P. Piccioli, Stephen R. Guerin