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:
Feb. 03, 2009
Filed:
Sep. 08, 2003
Applicants:
Cristiano Casale, Spilamberto, IT;
Sara DE Simoni, Modena, IT;
Inventors:
Cristiano Casale, Spilamberto, IT;
Sara De Simoni, Modena, IT;
Assignee:
Tetra Laval Holdings & Finance S.A., Pully, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 5/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
A closable opening device having a frame defining a through hole and fitted about a pierceable portion of a sealed package for pourable food products; a removable threaded cap which screws onto the frame to close the hole; and a tubular cutting member screwed inside the hole and rotated by the cap to travel through the pierceable portion. The cutting member has an end cutting edge, in turn having a main blade, and a number of teeth located behind the main blade and decreasing gradually in height so as to act successively on the pierceable portion.