Method for operating a joke article to produce a surprising change in the vocal pitch

摘要

The object is to make available, for the operation of a joke article, a previously undesired side effect of the inhalation of helium, specifically the voice-altering effect as experienced, for example, by deep-sea divers who use a helium/air mixture for breathing. Helium is introduced into a canister (1) with a lid (2). On the canister is a valve (3) with a connector (4) to which a tube (5) is connected. The tube is introduced into the mouth after exhalation. During inhalation, the valve is depressed, the gas flowing out and being able to be inhaled directly. If the user now says something, he will be surprised to note an effect that raises the pitch of his voice. Operation of a joke article for a surprising change in the pitch of the voice. <IMAGE>