Signal generator for rescue purposes - has inflatable balloon attached to cord stored in portable container

摘要

A balloon (8) is stored in a housing (1). The housing also contains a bottle (2) containing a gas, preferably helium, and a cord (12) wound around a spool (9) and attached to the balloon. The apparatus is brought into use by pulling on the rip cord (10) which opens the bottle outlet valve (3) so that the balloon is inflated with helium. The coupling (6) between the inlet valve (5) and non-return valve (7) is then disconnected and the balloon is released. As the balloon rises it unwinds the cord (12) from the spool (9). USE - For indicating the position of a person in need of rescue.