Signal balloon

Claim 1

A signal balloon, comprising a. an inflatable balloon having an open-ended neck portion, b. an elongated tubular cannister secured at one end to said balloon in said neck portion, c. a perforated cap threaded to said one end of said cannister, d. said cannister being formed with axially aligned upper and lower chambers said upper chamber being adjacent to said balloon, e. a battery case mounted in said upper chamber threaded to said cap and defining an annular passage with the walls of said cannister from said lower chamber to said balloon, f. said cap being formed with a socket for mounting a bulb at the end of said cannister extending into said balloon for interior illumination thereof, g. said lower chamber being adapted to receive a cylinder of gas axially inserted therein, h. valve means disposed between said upper and lower chambers, i. said valve means including a spring-loaded pointed element positioned to puncture the diaphragm of the gas cylinder inserted in said lower chamber whereby gas will be released from said cylinder through said valve means along said passage and into said balloon, j. a baling handle pivoted to the lower end of said cannister and a screw threaded thereto adapted to bear against the end of said cylinder in said chamber for forcing the opposite end thereof against said pointed element, and, k. a line secured to said cannister for anchoring said balloon.