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. 20, 2004
Filed:
Jun. 06, 2001
Georg Pfefferkorn, Mullheim, DE;
Udo Bosl, Eimeldingen, DE;
Crown Cork & Seal Technologies Corporation, Philadelphia, PA (US);
Abstract
A closure cap ( ) with a cap base ( ) and with a cap skirt ( ) comprises an inner seal ( ). The inner seal is provided with bleeding reliefs ( ) which lift the sealing effect as soon as the cap base ( ) is displaced axially upwards. The closure cap ( ) comprises a first abutment and a second abutment ( ). On screwing-on firstly the second abutment ( ) comes into engagement with the container opening. By way of this a weakening zone ( ) in the region of the cap base ( ) is pretensioned to a predeterminable value. On account of the predeterminable pretensioning of the weakening zone ( ) a bleeding at an exactly defined excess pressure is possible.