Apparatus for polishing interior surfaces of pipes or the like

Details Apparatus for polishing interior surfaces of pipes or the like Apparatus for polishing interior surfaces of pipes or the like

1981-10-01

1983-11-29

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51411, 5116593, 51281P, B24C 316

Patent

active

044174217

ABSTRACT:
A pipe polishing apparatus of the type in which a polisher rod is extractably inserted into a pipe to be polished and polishing grains are injected into a gap between the polisher rod and pipe while rotating the rod and pipe in opposite directions for polishing the interior surface of the pipe. The polisher rod has an outside diameter which is reduced stepwise or continuously in the polishing grain injecting direction to eliminate the localized abnormal abrasion of the polishing surface or the so-called "bell mouth phenomenon."

REFERENCES:
patent: 2497021 (1950-02-01), Sterns

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