(under subclass 300) Coating apparatus, peculiar or specialized to applying a coating to the inner surface of a cavity or hole within the confines of the work.
(1) Note. In this subclass may be found, for example, apparatus for supporting a hollow article and means to cause the projector to be inserted into and removed from the hollow article. Also in this subclass may be found devices for supporting the hollow article and causing the projector to have a motion to cover the inner surfaces of the hollow article with coating material without the projector actually entering the hollow article.
SEE OR SEARCH THIS CLASS, SUBCLASS:
254, and see the notes thereto for other coating apparatus for applying a coating to the inside of a hollow article.
