Class Information
Number: 114/334
Name: Ships > Submersible device > Having air supply
Description: Device wherein means are provided to supply or circulate a breathable gaseous mixture to the interior of a submergible device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6941883 |
Submerged underwater observation booth |
Sep. 13, 2005 |
| 6763827 |
Emergency air system for kayaks |
Jul. 20, 2004 |
| 5479871 |
Emergency power system for submarines |
Jan. 2, 1996 |
| 5237952 |
Variable attitude submersible hydrofoil |
Aug. 24, 1993 |
| 5232385 |
Gas turbine powered ship |
Aug. 3, 1993 |
| 5144905 |
Diving boat |
Sep. 8, 1992 |
| 4922848 |
Underwater rescue device |
May. 8, 1990 |
| 4903628 |
Pressure equalizer |
Feb. 27, 1990 |
| 4889066 |
Submersible vehicle |
Dec. 26, 1989 |
| 4694768 |
Emergency air system for partially submerged vessels |
Sep. 22, 1987 |
| 4662904 |
Gill for extracting oxygen from oxygen bearing fluids |
May. 5, 1987 |
| 4276851 |
Underwater cruise device |
Jul. 7, 1981 |
| 4060076 |
Breathing apparatus incorporating depth compensation |
Nov. 29, 1977 |
| 3957007 |
Air powered water propulsion method and apparatus |
May. 18, 1976 |
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