Cover installation ring for sealing jar, has edge that is provided with bevel and is aligned towards cover, where ring is arranged in cover and has groove arranged at circumference of ring

摘要

The ring (2) has an edge that is provided with a bevel (11) and is aligned towards a cover (1), where the ring (2) is arranged in the cover. The bevel has a surface that is enclosed with the cover at an angle in a range of 15 to 45 degrees. A positioning ring is designed as a rotating device, where position of the positioning ring is changed relative to the ring (2) by rotation. The ring (2) has a groove arranged at a circumference of the ring (2). An independent claim is also included for an illuminant for discharging a sensible medium e.g. light, sound and water.