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Class Information
Number: 405/192
Name: Hydraulic and earth engineering > Diving > With air lock
Description: Method or apparatus wherein the means with which personnel may carry on the underwater operation comprises an underwater enclosure having a gaseous environment in which a specific pressure condition is maintained, and wherein a chamber means is provided having a first sealable opening communicating with said enclosure, and a second sealable opening communicating with the underwater environment, whereby passage of material or personnel into or out of the enclosure can be accomplished while maintaining the pressure condition within the enclosure.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6622793 |
Method for carrying out operations on petroleum and gas fields and deep-sea platform for realizing the same |
Sep. 23, 2003 |
| 6612251 |
Mobile undersea habitat |
Sep. 2, 2003 |
| 6457907 |
Method and device for carrying out work on an object which is present under water |
Oct. 1, 2002 |
| 6220787 |
Ship type floating oil production system |
Apr. 24, 2001 |
| 5869756 |
Moored water profiling apparatus |
Feb. 9, 1999 |
| 5795103 |
Oil tanker and method for recovering oil from submerged oil tanker |
Aug. 18, 1998 |
| 5775844 |
Pipeline repair habitat |
Jul. 7, 1998 |
| 5749679 |
Method and device for letting out gas from life jackets of divers |
May. 12, 1998 |
| 4913590 |
Mono-atmospheric chamber |
Apr. 3, 1990 |
| 4904117 |
Access apparatus connecting a first and second chamber at great water depths |
Feb. 27, 1990 |
| 4828207 |
Fluid lock |
May. 9, 1989 |
| 4724790 |
Submersible bell |
Feb. 16, 1988 |
| 4669413 |
Transfer chamber and method of operating same |
Jun. 2, 1987 |
| 4626128 |
Underwater gas pocket work unit and removal of dangerous fumes and gases therefrom |
Dec. 2, 1986 |
| 4345854 |
Apparatus for laying underwater pipelines |
Aug. 24, 1982 |
| 4333414 |
Submersible twin-hull watercraft |
Jun. 8, 1982 |
| 4324510 |
Apparatus for supporting a mine roof support assembly |
Apr. 13, 1982 |
| 4274405 |
Method for varying the ambient pressure in a vessel |
Jun. 23, 1981 |
| 4196656 |
Method and apparatus for transporting and housing tunnel workers active in high pressure environments |
Apr. 8, 1980 |
| 4144801 |
Method and apparatus for transporting and housing tunnel workers active in high pressure environments |
Mar. 20, 1979 |
| 4011867 |
Diver's pressure chamber system |
Mar. 15, 1977 |
| 3987742 |
Swivel air lock for airtight connection between submergibles |
Oct. 26, 1976 |
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