Balloon signal assembly
The signal assembly includes a deflated balloon capable of retaining a lighter-than-air gas. It also includes a container for the gas under pressure which has an opening in it. The open edges of the balloon in deflated form are sealingly fixed to the opening. The balloon is retained in deflated form...
Saved in:
Main Author | |
---|---|
Format | Patent |
Language | English |
Published |
03.05.1977
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Be the first to leave a comment!