Pressure compensation method and apparatus for underwater equipment
US4947783A · kind A · utility
6Cited by
11References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1990 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Mar 30, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for pressure compensating an underwater housing by blowing up a balloon and sealing the balloon mouth around a conduit to pneumatically connect the balloon to the interior of the housing. The balloon is configured to change its appearance either structurally or via indicia to provide a variable indication as to what depth it will provide compensating air. The indication varies in response to the amount the balloon stretches to accommodate the air forced into the balloon as it is blown up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.