Underwater breathing apparatus
US5327849A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 18, 1993 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Aug 18, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C11/202
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A floating apparatus for providing pressurized air to a submerged swimmer. A floatation device supports a combination of two containers above the surface of the water. The top container, in the form of an inverted box, holds one or more electrically powered compressors. The bottom container holds a battery for powering the compressors. Water ingestion by the compressor(s) is prevented by placing the air intake inside the upper box, which forms an air trap. The air intake and compressors are isolated from any possible contamination or explosion risk from the battery outgassing, which is safely vented to the outside air from the lower compartment. Battery life is extended by pressure switch controls on the air compressor(s), running them on demand instead of continuously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.