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:
Jan. 01, 2002
Filed:
May. 15, 1998
Applicant:
Inventors:
Eric Risgalla, Prevessin-Moens, FR;
Xavier de Saint-Sauveur, Ferney-Voltaire, FR;
Assignee:
Walk Pak Holding NV, Curacao, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 3/300 ;
U.S. Cl.
CPC ...
B65D 3/300 ;
Abstract
This leaktight container includes four superimposed sheets ( ). The sheet ( ) includes a precut tab ( ) welded ( ) to a portion of the sheet ( ). A passage ( ) is formed between these sheets ( ) and ( ) and acts as a valve between the inside and the outside of the leaktight container formed between the sheets ( ). A cut ( ) in the sheets ( ) allows the passage ( ) to be placed in communication with the inside of the container formed between the sheets ( ). By pulling the tab ( ) the wall of the passage ( ) formed by the sheet ( ) is torn and this passage is placed in communication with the outside.