Pipes and tubular conduits

SECTION I - CLASS DEFINITION

This class includes:

A. Tubular members of definite or indefinite length including wall structure of the tubular members, the end structure of the tubular members of definite length, if not elsewhere classifiable.

B. Fluid pressure compensators (e.g., accumulators or cushioning devices), flow regulators, or baffles not restricted by structure to use with any particular art.

C. Devices for thawing frozen fluid in pipes, for preventing the fluid in the pipes from freezing and for preventing the pipe from bursting if the fluid freezes.

D. Pipes with closures and plugs where tied with the structure of the pipe or limited by structure to use with a pipe.

E. Methods and apparatus for repairing pipes where not elsewhere classifiable.