Automatic buoyancy compensator with electronic vertical motion
US5496136A · kind A · utility
Inventor
Key dates
| Filing date | Mar 23, 1995 |
| Grant date | Mar 5, 1996 |
| Priority date | — |
| Expiry date | Mar 23, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C2011/085
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved buoyancy compensator that reduces the scuba diver's attention and exertion required for buoyancy control and vertical propulsion. The buoyancy compensator, which includes an electronic sensor/valve assembly and a flexible air bladder, automates and controls the vertical motion of the scuba diver. An embedded computer acquires pressure, temperature, and air flow sensor measurement data to determine the diver's vertical motion and the amount of the air in the bladder. The computer controls electronic fill and release valves to change the bladder air volume. Algorithms are implemented, by the computer, to automate controlled vertical propulsion for ascending and descending, neutral buoyancy maintenance, and surface operation. Automated transitions are provided between modes of operation and for a timed safety stop during the ascent from the dive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.