David D Onzik

US Patent:

20050146080, Jul 7, 2005

Filed:

Mar 1, 2005

Appl. No.:

11/069151

Inventors:

Earle Keirstead - North Redington Beach FL, US
Fredrick McCleery - Clearwater FL, US
William Conard - Harleysville PA, US
Arthur Knight - Gulfport FL, US
William Hoover - North East PA, US
Thomas Butler - South Williamsport PA, US
David Onzik - Muncy PA, US

International Classification:

B29C045/40
B29C045/00

US Classification:

264328100, 425556000, 425549000, 264334000, 264335000, 264328160, 264328150

Abstract:

The present invention is a method for making a plastic overcap using a mold tool stack. The mold tool stack has a core and a cavity plate forming a cavity therebetween. The core has a resin passageway therein with a gate in a top surface of the core. The gate has a valve proximate the top surface of the core to regulate resin flowing from the resin passageway and into the cavity. The steps of the mold method are as follows: the mold tool stack is closed to form the cavity; the valve is opened to allow resin to enter the cavity; the valve is closed; the resin is allowed to cool; and the mold tool stack is opened to allow removal of the plastic overcap from within the mold tool stack. The top side of the plastic overcap produced is blemish-free, facilitating placement of labels and other markings thereon.

US Patent:

20040119203, Jun 24, 2004

Filed:

Jul 14, 2003

Appl. No.:

10/619243

Inventors:

Earle Keirstead - North Redington Beach FL, US
Fredrick McCleery - Clearwater FL, US
William Conard - Harleysville PA, US
Arthur Knight - Gulfport FL, US
William Hoover - North East PA, US
Thomas Butler - South Williamsport PA, US
David Onzik - Muncy PA, US

Assignee:

West Pharmaceutical Services, Inc.

International Classification:

B29C045/40

US Classification:

264/328100, 264/328160, 264/334000, 425/556000, 425/549000

Abstract:

The present invention is a method for making a plastic overcap using a mold tool stack. The mold tool stack has a core and a cavity plate forming a cavity therebetween. The core has a resin passageway therein with a gate in a top surface of the core. The gate has a valve proximate the top surface of the core to regulate resin flowing from the resin passageway and into the cavity. The steps of the mold method are as follows: the mold tool stack is closed to form the cavity; the valve is opened to allow resin to enter the cavity; the valve is closed; the resin is allowed to cool; and the mold tool stack is opened to allow removal of the plastic overcap from within the mold tool stack. The top side of the plastic overcap produced is blemish-free, facilitating placement of labels and other markings thereon.