REUSABLE GLASS JAR SEALING CAP Russian patent published in 1997 - IPC

FIELD: packing. SUBSTANCE: sealing device has cap with slots equidistantly arranged on side surface, and ring made of flexible material and placed between jar neck and cap. Ring in made in form of truncated cone, with larger base pointed downwards. Shoulder pointed inwards is made on top of ring. Shoulder forms opening diameter of which is equal to diameter of jar neck. Thickness of shoulder is greater than thickness of truncated cone. EFFECT: enlarged operating capabilities. 2 dwg