Safety cap for containers under steam pressure.

摘要

A safety cap for containers under steam pressure is described, in which a diaphragm (5) is subject to the action of the steam pressure in the container, interrupting the mechanical connection between the closing component (1) screwed into the mouth of the container and the external cap (17) which can be turned by the user when pressure is present, so that the external cap turns but the closing component is not unscrewed.