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. 25, 1984
Filed:
May. 03, 1983
Dietmar Aichinger, Runenberg, CH;
Hans-Werner Breuer, Himmelried, CH;
Albert Obrist AG, Reinach, CH;
Abstract
A screw-cap (1) for closing a container mouth has a sealing lip (5), which is affixed to the cap top (4). The inner side-wall (7) of the sealing lip (5) has a diameter (A) which is greater than the outer diameter (B) of the container outer wall (8). A clamping device, which can be designed as an inner seal (13), creates a contraction of the cap top when the screw-cap is screwed on to the container, by which means the sealing lip (5) is pressed against the container mouth (8). In this manner the sealing lip (5) is only pressed radially against the container mouth during the course of the screwing-on process. In this way over-stretching and damage to the material of the sealing lip can be prevented.