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:
Sep. 23, 2014
Filed:
Dec. 13, 2010
Giorgio Maccagnan, Castronno, IT;
Giorgio MacCagnan, Castronno, IT;
Gimac di Maccagnan Giorgio, Castronno, IT;
Abstract
An extrusion device, in particular for plastic materials comprising: an extrusion head () having a nozzle () for ejection of at least one plastic material (M, M); a first duct () formed in said head () for feeding a first plastic material (M) to said ejection nozzle (); a second duct (β) formed in said head () for feeding a second plastic material (M) to said ejection nozzle (); and a selection element (), disposed in the vicinity of said ejection nozzle () and able to be switched between a first operating condition at which it closes the second duct () to enable feeding of the first plastic material (M) through the first duct (), and a second operating condition at which it closes the first duct () to enable feeding of the second plastic material (M) through the second duct ().