System for closing containers
US5725123A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1997 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Feb 27, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12M23/38
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention concerns a system for closing cylindrical containers, such as Petri dishes, for example, with a cover cap whose cover apron presses against the outer surface of the lateral wall of the container. In particular, the present invention provides a cylindrical container and cover system having a simple and convenient, yet secure, closing and opening mechanism which consists of as few individual parts as possible. The cover cap of the present invention has individual elevations on the inner surface of the cover apron. The elevations press against the outer surface of the container walls to hold it in a non-positive manner. The elevations are made as knobs or elongated struts, and are arranged on opposite circular sections of the cover apron in such a way that at least two opposite sections of at least 130.degree. of the periphery of the cover apron have no elevations. In accord with the invention, a simple mechanism for removing the cover cap from the container is also provided. Gripping surfaces are provided on the cover apron at positions approximately 90.degree. to the elevations which permit the cover cap to be loosened from the container and lifted off with a s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.