.~ Submerging, raising, or manipulating line of pipe or cable in or from marine environment {7}
171
.~.~ By control of buoyancy
DEFINITION
Classification: 405/171
By control of buoyancy:
(under subclass 158) Method or apparatus wherein the string or conduit is at least partially floatable, and is properly placed by regulating the floatability thereof.
(1) Note. The pipe may be made buoyant by using air trapped therewithin, or by attaching float members to the pipe, or ballast material may be added to the pipe to regulate the sinking thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200, for use of a buoyant chamber to adjust the height of a work platform.
205+, for method or apparatus for sinking or orienting a marine structure in a body of water.
