Spray can with extendable pressure element - uses pressure element made from rubber in ball shape and extending upwards or downwards under pressure

摘要

A spry can (1) has an extendable pressur element arranged in its interior chamber which can be brought to full pressure by compressed air ro by gas. The extendable pressure element located in the interior chamber of the can is attached to the base plate of the spray can in such a way that through pressure it extends upwards during which it is supported against the wall of the can and against the surface of the liq. contents. The poipe line for the liq. to be sprayed is led along the wall of the spray can. The extendable pressure element (3) consists of rubber or other flexible material and may be shaped like a rubber ball.