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. 13, 2005
Filed:
Feb. 28, 2001
Peter F. Bemis, Sheboygan Falls, WI (US);
Steven J. Kolste, Sheboygan Falls, WI (US);
Daniel Cykana, Hingham, WI (US);
Stephen R. Fiacchino, Port Washington, WI (US);
Michael P. O'grady, Sheboygan Falls, WI (US);
Peter F. Bemis, Sheboygan Falls, WI (US);
Steven J. Kolste, Sheboygan Falls, WI (US);
Daniel Cykana, Hingham, WI (US);
Stephen R. Fiacchino, Port Washington, WI (US);
Michael P. O'Grady, Sheboygan Falls, WI (US);
Bemis Manufacturing Company, Sheboygan Falls, WI (US);
Abstract
A co-injection nozzle pin () having downstream and upstream ends. The nozzle pin has therein a central bore () including an upstream end () adapted to communicate with a first material and a downstream end () exiting at the downstream end of the pin. The nozzle pin also has an outer surface () including a first portion () having a diameter D, a second portion () having a diameter D, wherein Dis less than Dand the first portion is rearward of the second portion. The pin further includes a channel () spiralling around the outer surface and being adapted to communicate with a second material. The channel () includes a first segment () defined in the first portion () of the outer surface and increasing in depth as it travels in a downstream direction and a second segment () defined in the second portion () of the outer surface and decreasing in depth as it travels in a downstream direction.